US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Graham

1,109.07

-21.3800-1.89%

Volume:13.14K

Turnover:14.64M

Market Cap:4.84B

PE:6.65

High:1,152.00

Open:1,138.51

Low:1,103.22

Close:1,130.45

52wk High:1,224.76

52wk Low:875.60

Shares:4.36M

Float Shares:2.44M

Volume Ratio:0.67

T/O Rate:0.54%

Dividend:7.28

Dividend Rate:0.66%

EPS(TTM):166.67

EPS(LYR):163.40

ROE:17.00%

ROA:8.66%

PB:1.09

PE(LYR):6.79

Loading ...

Overview Company News Filings

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Employee Stock Ownership

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Employee Stock Ownership

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Employee Stock Ownership

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Annual Report

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Employee Stock Ownership

Form 11-K - Annual report of employee stock purchase, savings and similar plans

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/GHC/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"GHC","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"GHC\",,,,,undefined,":{"symbol":"GHC","market":"US","secType":"STK","nameCN":"Graham","latestPrice":1109.07,"timestamp":1770843600000,"preClose":1130.45,"halted":0,"volume":13140,"delay":0,"changeRate":-0.018912822327391842,"floatShares":2436336,"shares":4362423,"eps":166.67308,"marketStatus":"Pre-Mkt","change":-21.38,"latestTime":"02-12 09:19:03 EST","open":1138.51,"high":1152,"low":1103.22,"amount":14636010.024,"amplitude":0.043151,"askPrice":1750,"askSize":1,"bidPrice":1103.97,"bidSize":1,"shortable":3,"etf":0,"ttmEps":166.67308,"tradingStatus":1,"nextMarketStatus":{"tag":"Open","tradingStatus":2,"beginTime":1770906600000},"marketStatusCode":1,"adr":0,"adrRate":0,"listingDate":45806400000,"exchange":"NYSE","adjPreClose":1109.07,"dividendRate":0.006564,"postHourTrading":{"tag":"盘后","latestPrice":1109.07,"preClose":1109.07,"latestTime":"17:38 EST","volume":672,"amount":745288.586,"timestamp":1770849484569,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":0.670675067989685},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"GHC\",,,,,undefined,":{"symbol":"GHC","floatShares":2436336,"roa":"8.66%","roe":"17.00%","lyrEps":163.39841,"volumeRatio":0.670675067989685,"shares":4362423,"dividePrice":7.28,"high":1152,"amplitude":0.043151,"preClose":1130.45,"low":1103.22,"week52Low":875.6,"pbRate":"1.09","psRate":"0.99","week52High":1224.76,"institutionHeld":0.6731,"latestPrice":1109.07,"eps":166.67308,"divideRate":0.006564,"volume":13140,"delay":0,"ttmEps":166.67308,"open":1138.51,"prevYearClose":1098.6,"prevWeekClose":1158.23,"prevMonthClose":1166.63,"prevQuarterClose":1098.6,"fiveDayClose":1160.18,"twentyDayClose":1155.49,"sixtyDayClose":1066.35,"dividendPayoutRate":0.04179227101879552,"dividendFrequency":"Q","dividendGrowthYears":8,"dividendGrowthRate":0.04242424242424246,"fiveYearAvgDividendRate":0.00982249739314184},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/GHC\",params:#limit:5,,,undefined,":[{"date":"2026-02-04","symbol":"GHC","amount":1.88,"announcedDate":"2026-01-15","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-02-04","defaultRemindTime":1770215400000,"name":"格雷厄姆控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-02-19","payableDate":"2026-02-04","currency":"USD","dateTimestamp":1770181200000,"payDate":"2026-02-19"},{"market":"US","date":"2025-10-29","symbol":"GHC","fiscalQuarterEnding":"2025/09","expectedEps":null,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1761710400000,"reportTimeType":"pre","actualEps":14.08},{"date":"2025-10-16","symbol":"GHC","amount":1.8,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-10-16","defaultRemindTime":1760621400000,"name":"格雷厄姆控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-11-06","payableDate":"2025-10-16","currency":"USD","dateTimestamp":1760587200000,"payDate":"2025-11-06"},{"market":"US","date":"2025-07-30","symbol":"GHC","fiscalQuarterEnding":"2025/06","expectedEps":null,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1753848000000,"reportTimeType":"pre","actualEps":14.33},{"date":"2025-07-17","symbol":"GHC","amount":1.8,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-07-17","defaultRemindTime":1752759000000,"name":"格雷厄姆控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-08-07","payableDate":"2025-07-17","currency":"USD","dateTimestamp":1752724800000,"payDate":"2025-08-07"}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"GHC\",market:\"US\",,,undefined,":[{"executeDate":"2016-04-13","recordDate":"2016-04-15","paymentDate":"2016-05-10","value":1.21,"currency":"USD"},{"executeDate":"2016-07-18","recordDate":"2016-07-20","paymentDate":"2016-08-10","value":1.21,"currency":"USD"},{"executeDate":"2016-10-17","recordDate":"2016-10-19","paymentDate":"2016-11-10","value":1.21,"currency":"USD"},{"executeDate":"2017-01-30","recordDate":"2017-02-01","paymentDate":"2017-02-15","value":1.27,"currency":"USD"},{"executeDate":"2017-04-11","recordDate":"2017-04-14","paymentDate":"2017-05-09","value":1.27,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"GHC\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0,"buy":0,"hold":0,"sell":1,"strongSell":0,"meanLabel":"SELL","meanPercent":1,"analysts":1,"updateTime":1646283600000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/GHC\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"GHC","date":"2026-02-10","current":6.654164,"percent":0.243983,"low":5.240637,"twenty":6.47127,"median":10.91499,"eighty":20.168258,"high":119.077918,"avg":17.293032,"sd":21.521569,"marketCap":4879806367},"quantilePoints":[{"date":"2021-02-12","current":14.514833,"twenty":5.246689,"median":10.364186,"eighty":13.973272,"marketCap":3035124191},{"date":"2021-02-19","current":14.562479,"twenty":5.318813,"median":10.60104,"eighty":14.00411,"marketCap":3045087072},{"date":"2021-02-26","current":10.005917,"twenty":5.36899,"median":10.630718,"eighty":14.009587,"marketCap":3005427364},{"date":"2021-03-05","current":9.514972,"twenty":5.408135,"median":10.633785,"eighty":14.010389,"marketCap":2857964690},{"date":"2021-03-12","current":10.020239,"twenty":5.432467,"median":10.633785,"eighty":14.010389,"marketCap":3009729192},{"date":"2021-03-19","current":10.008249,"twenty":5.461441,"median":10.633785,"eighty":14.010389,"marketCap":3006127662},{"date":"2021-03-26","current":9.521891,"twenty":5.481432,"median":10.630718,"eighty":14.009587,"marketCap":2860042931},{"date":"2021-04-01","current":9.56169,"twenty":5.518541,"median":10.630718,"eighty":14.009587,"marketCap":2871996872},{"date":"2021-04-09","current":10.310692,"twenty":5.582518,"median":10.633785,"eighty":14.010389,"marketCap":3096971044},{"date":"2021-04-16","current":10.937969,"twenty":5.620458,"median":10.651441,"eighty":14.010389,"marketCap":3285383162},{"date":"2021-04-23","current":10.729321,"twenty":5.658397,"median":10.671769,"eighty":14.010389,"marketCap":3222712500},{"date":"2021-04-30","current":10.584116,"twenty":5.697559,"median":10.681948,"eighty":14.010389,"marketCap":3179098120},{"date":"2021-05-07","current":7.384625,"twenty":5.750668,"median":10.681948,"eighty":14.010389,"marketCap":3293985998},{"date":"2021-05-14","current":7.297613,"twenty":5.77875,"median":10.681948,"eighty":14.010389,"marketCap":3255173202},{"date":"2021-05-21","current":7.591729,"twenty":5.824828,"median":10.681948,"eighty":14.010389,"marketCap":3386366455},{"date":"2021-05-28","current":7.429029,"twenty":5.868844,"median":10.681948,"eighty":14.010389,"marketCap":3313792528},{"date":"2021-06-04","current":7.484533,"twenty":5.877969,"median":10.681948,"eighty":14.010389,"marketCap":3338550691},{"date":"2021-06-11","current":7.363881,"twenty":5.923402,"median":10.681948,"eighty":14.010389,"marketCap":3284732947},{"date":"2021-06-18","current":7.188399,"twenty":6.024922,"median":10.681948,"eighty":14.010389,"marketCap":3206457140},{"date":"2021-06-25","current":7.060907,"twenty":6.545691,"median":10.681948,"eighty":14.010389,"marketCap":3149588391},{"date":"2021-07-02","current":7.166982,"twenty":7.060907,"median":10.681948,"eighty":14.010389,"marketCap":3196903991},{"date":"2021-07-09","current":7.511556,"twenty":7.113833,"median":10.681948,"eighty":14.010389,"marketCap":3350604665},{"date":"2021-07-16","current":7.294025,"twenty":7.185897,"median":10.681948,"eighty":14.010389,"marketCap":3253572674},{"date":"2021-07-23","current":7.330579,"twenty":7.239642,"median":10.681948,"eighty":14.010389,"marketCap":3269878050},{"date":"2021-07-30","current":7.4528,"twenty":7.27272,"median":10.681948,"eighty":14.010389,"marketCap":3324396024},{"date":"2021-08-06","current":5.903426,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":3202986279},{"date":"2021-08-13","current":5.742937,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":3115910826},{"date":"2021-08-20","current":5.554609,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":3013730957},{"date":"2021-08-27","current":5.713992,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":3100206235},{"date":"2021-09-03","current":5.541243,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":3006478837},{"date":"2021-09-10","current":5.45367,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":2958964948},{"date":"2021-09-17","current":5.395319,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":2927305693},{"date":"2021-09-24","current":5.505937,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":2987323237},{"date":"2021-10-01","current":5.507596,"twenty":7.297613,"median":10.681948,"eighty":14.010389,"marketCap":2988223501},{"date":"2021-10-08","current":5.555715,"twenty":7.294743,"median":10.681779,"eighty":14.009587,"marketCap":3014331132},{"date":"2021-10-15","current":5.278801,"twenty":7.294743,"median":10.681779,"eighty":14.009587,"marketCap":2864087214},{"date":"2021-10-22","current":5.325537,"twenty":7.294743,"median":10.681779,"eighty":14.009587,"marketCap":2889444626},{"date":"2021-10-29","current":5.400481,"twenty":7.294743,"median":10.681779,"eighty":14.009587,"marketCap":2930106512},{"date":"2021-11-05","current":5.963597,"twenty":7.265006,"median":10.671666,"eighty":14.006114,"marketCap":3008843648},{"date":"2021-11-12","current":5.830881,"twenty":7.203783,"median":10.651441,"eighty":13.996316,"marketCap":2941883604},{"date":"2021-11-19","current":5.848452,"twenty":7.168328,"median":10.60104,"eighty":13.940101,"marketCap":2950748876},{"date":"2021-11-26","current":5.831372,"twenty":7.113115,"median":10.569156,"eighty":13.901544,"marketCap":2942131237},{"date":"2021-12-03","current":5.645942,"twenty":7.035544,"median":10.398947,"eighty":13.797421,"marketCap":2848575376},{"date":"2021-12-10","current":5.75294,"twenty":6.300964,"median":10.19696,"eighty":13.725201,"marketCap":2902559435},{"date":"2021-12-17","current":5.591069,"twenty":5.967363,"median":10.065837,"eighty":13.680565,"marketCap":2820889973},{"date":"2021-12-23","current":5.747639,"twenty":5.924353,"median":10.047588,"eighty":13.644986,"marketCap":2899884996},{"date":"2021-12-31","current":6.182599,"twenty":5.892901,"median":10.01924,"eighty":13.578439,"marketCap":3119337626},{"date":"2022-01-07","current":6.195458,"twenty":5.895532,"median":10.00723,"eighty":13.462938,"marketCap":3125825619},{"date":"2022-01-14","current":6.211165,"twenty":5.898164,"median":9.996898,"eighty":13.426441,"marketCap":3133749884},{"date":"2022-01-21","current":5.837262,"twenty":5.878694,"median":9.97426,"eighty":13.399284,"marketCap":2945102836},{"date":"2022-01-28","current":5.637893,"twenty":5.866336,"median":9.944931,"eighty":13.388977,"marketCap":2844514190},{"date":"2022-02-04","current":5.672053,"twenty":5.843446,"median":9.925884,"eighty":13.368194,"marketCap":2861749468},{"date":"2022-02-11","current":5.857189,"twenty":5.836343,"median":9.89978,"eighty":13.311059,"marketCap":2955156748},{"date":"2022-02-18","current":5.881926,"twenty":5.832407,"median":9.859167,"eighty":13.209297,"marketCap":2967637467},{"date":"2022-02-25","current":8.328162,"twenty":5.82611,"median":9.85213,"eighty":13.164221,"marketCap":2932137485},{"date":"2022-03-04","current":8.000835,"twenty":5.82611,"median":9.805398,"eighty":13.036667,"marketCap":2816894002},{"date":"2022-03-11","current":8.112544,"twenty":5.82611,"median":9.767988,"eighty":12.885448,"marketCap":2856223906},{"date":"2022-03-18","current":8.425385,"twenty":5.82611,"median":9.732517,"eighty":12.747117,"marketCap":2966367252},{"date":"2022-03-25","current":8.529481,"twenty":5.82611,"median":9.670253,"eighty":12.677547,"marketCap":3003016958},{"date":"2022-04-01","current":8.637777,"twenty":5.82611,"median":9.61865,"eighty":12.632667,"marketCap":3041145365},{"date":"2022-04-08","current":8.500212,"twenty":5.82611,"median":9.582921,"eighty":12.581243,"marketCap":2992711982},{"date":"2022-04-14","current":8.550666,"twenty":5.82611,"median":9.565437,"eighty":12.548384,"marketCap":3010475797},{"date":"2022-04-22","current":8.608229,"twenty":5.82611,"median":9.521096,"eighty":12.527621,"marketCap":3030742248},{"date":"2022-04-29","current":8.256301,"twenty":5.82611,"median":9.504214,"eighty":12.435886,"marketCap":2906837190},{"date":"2022-05-06","current":8.603308,"twenty":5.832407,"median":9.489333,"eighty":12.433381,"marketCap":2884250305},{"date":"2022-05-13","current":8.875174,"twenty":5.843446,"median":9.489333,"eighty":12.433381,"marketCap":2975393044},{"date":"2022-05-20","current":8.74208,"twenty":5.857012,"median":9.489333,"eighty":12.433381,"marketCap":2930773621},{"date":"2022-05-27","current":8.905025,"twenty":5.878935,"median":9.489333,"eighty":12.433381,"marketCap":2985400683},{"date":"2022-06-03","current":8.853477,"twenty":5.908215,"median":9.489333,"eighty":12.433381,"marketCap":2968119200},{"date":"2022-06-10","current":8.518705,"twenty":5.945164,"median":9.489333,"eighty":12.433381,"marketCap":2855887192},{"date":"2022-06-17","current":7.8279,"twenty":5.97147,"median":9.489333,"eighty":12.433381,"marketCap":2624295786},{"date":"2022-06-24","current":8.20825,"twenty":6.046498,"median":9.498205,"eighty":12.433724,"marketCap":2751807749},{"date":"2022-07-01","current":8.460895,"twenty":6.17879,"median":9.498205,"eighty":12.433724,"marketCap":2836506546},{"date":"2022-07-08","current":8.215386,"twenty":6.259983,"median":9.498205,"eighty":12.433724,"marketCap":2754199819},{"date":"2022-07-15","current":8.306978,"twenty":6.45067,"median":9.498205,"eighty":12.433724,"marketCap":2784906184},{"date":"2022-07-22","current":8.408182,"twenty":7.035723,"median":9.498205,"eighty":12.433724,"marketCap":2818834520},{"date":"2022-07-29","current":8.656749,"twenty":7.113474,"median":9.498205,"eighty":12.433724,"marketCap":2902166419},{"date":"2022-08-05","current":18.374038,"twenty":7.179159,"median":9.505197,"eighty":12.446843,"marketCap":2800313656},{"date":"2022-08-12","current":19.240157,"twenty":7.222374,"median":9.538953,"eighty":12.529933,"marketCap":2932315299},{"date":"2022-08-19","current":18.804556,"twenty":7.270208,"median":9.570619,"eighty":12.556498,"marketCap":2865927092},{"date":"2022-08-26","current":18.285075,"twenty":7.305664,"median":9.597947,"eighty":12.59698,"marketCap":2786755160},{"date":"2022-09-02","current":17.571465,"twenty":7.344752,"median":9.641838,"eighty":12.647464,"marketCap":2677996652},{"date":"2022-09-09","current":17.839942,"twenty":7.356705,"median":9.701463,"eighty":12.679776,"marketCap":2718914256},{"date":"2022-09-16","current":17.579408,"twenty":7.380992,"median":9.750322,"eighty":12.770282,"marketCap":2679207232},{"date":"2022-09-23","current":17.009091,"twenty":7.420731,"median":9.780962,"eighty":12.901805,"marketCap":2592287588},{"date":"2022-09-30","current":17.092971,"twenty":7.444771,"median":9.820712,"eighty":13.082229,"marketCap":2605071313},{"date":"2022-10-07","current":17.043088,"twenty":7.467489,"median":9.856322,"eighty":13.186391,"marketCap":2597468871},{"date":"2022-10-14","current":17.91429,"twenty":7.492561,"median":9.875021,"eighty":13.284537,"marketCap":2730245285},{"date":"2022-10-21","current":18.883351,"twenty":7.572259,"median":9.909321,"eighty":13.329405,"marketCap":2877936045},{"date":"2022-10-28","current":19.947095,"twenty":7.733857,"median":9.938306,"eighty":13.383486,"marketCap":3040056919},{"date":"2022-11-04","current":21.109425,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3073532324},{"date":"2022-11-11","current":21.688195,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3157801176},{"date":"2022-11-18","current":21.367316,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3111081180},{"date":"2022-11-25","current":21.199786,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3086688828},{"date":"2022-12-02","current":20.040928,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2917959058},{"date":"2022-12-09","current":19.820632,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2885884076},{"date":"2022-12-16","current":19.83976,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2888669030},{"date":"2022-12-23","current":19.701251,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2868502125},{"date":"2022-12-30","current":19.925833,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2901201321},{"date":"2023-01-06","current":20.483826,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2982445137},{"date":"2023-01-13","current":20.929693,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3047363364},{"date":"2023-01-20","current":20.374338,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":2966503679},{"date":"2023-01-27","current":20.990044,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3056150373},{"date":"2023-02-03","current":22.102073,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3218061808},{"date":"2023-02-10","current":21.64961,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3152183253},{"date":"2023-02-17","current":22.142966,"twenty":7.780161,"median":9.943275,"eighty":13.387598,"marketCap":3224015847},{"date":"2023-02-24","current":46.065616,"twenty":7.780161,"median":9.943275,"eighty":13.389297,"marketCap":3090035423},{"date":"2023-03-03","current":44.744251,"twenty":7.780161,"median":9.943275,"eighty":13.40243,"marketCap":3001399629},{"date":"2023-03-10","current":41.885819,"twenty":7.780161,"median":9.943275,"eighty":13.45133,"marketCap":2809658847},{"date":"2023-03-17","current":40.393034,"twenty":7.780161,"median":9.943275,"eighty":13.554121,"marketCap":2709524355},{"date":"2023-03-24","current":40.885341,"twenty":7.780161,"median":9.943275,"eighty":13.624512,"marketCap":2742547780},{"date":"2023-03-31","current":42.484647,"twenty":7.785033,"median":9.944931,"eighty":13.66976,"marketCap":2849827644},{"date":"2023-04-06","current":41.668238,"twenty":7.785033,"median":9.944931,"eighty":13.719323,"marketCap":2795063736},{"date":"2023-04-14","current":42.603722,"twenty":7.780161,"median":9.943275,"eighty":13.766201,"marketCap":2857815043},{"date":"2023-04-21","current":42.140258,"twenty":7.780161,"median":9.943275,"eighty":13.890502,"marketCap":2826726362},{"date":"2023-04-28","current":41.52706,"twenty":7.780161,"median":9.943275,"eighty":13.939394,"marketCap":2785593646},{"date":"2023-05-05","current":112.151761,"twenty":7.775288,"median":9.95404,"eighty":13.977967,"marketCap":2661024841},{"date":"2023-05-11","current":116.867145,"twenty":7.770416,"median":9.97426,"eighty":14.00411,"marketCap":2772906738},{"date":"2023-05-18","current":116.557316,"twenty":7.765543,"median":9.994806,"eighty":14.013729,"marketCap":2765555448},{"date":"2023-05-26","current":113.834827,"twenty":7.763109,"median":10.00723,"eighty":14.035594,"marketCap":2700958948},{"date":"2023-06-02","current":112.585521,"twenty":7.763109,"median":10.016681,"eighty":14.067082,"marketCap":2671316648},{"date":"2023-06-09","current":116.779193,"twenty":7.763109,"median":10.050984,"eighty":14.090196,"marketCap":2770819920},{"date":"2023-06-15","current":114.502457,"twenty":7.760675,"median":10.073847,"eighty":14.10706,"marketCap":2716799793},{"date":"2023-06-23","current":114.698348,"twenty":7.746658,"median":10.220595,"eighty":14.189715,"marketCap":2721447706},{"date":"2023-06-30","current":114.670364,"twenty":7.721057,"median":10.41257,"eighty":14.219324,"marketCap":2720783718},{"date":"2023-07-07","current":111.408174,"twenty":7.708256,"median":10.582618,"eighty":14.230794,"marketCap":2643381744},{"date":"2023-07-14","current":113.281135,"twenty":7.708256,"median":10.636852,"eighty":14.246026,"marketCap":2687821480},{"date":"2023-07-21","current":116.069587,"twenty":7.691071,"median":10.671169,"eighty":14.281699,"marketCap":2753983094},{"date":"2023-07-27","current":116.369421,"twenty":7.686686,"median":10.681072,"eighty":14.33906,"marketCap":2761097246},{"date":"2023-08-04","current":12.84123,"twenty":7.682302,"median":10.711122,"eighty":14.414236,"marketCap":2748023221},{"date":"2023-08-11","current":12.787359,"twenty":7.682302,"median":10.733984,"eighty":14.414236,"marketCap":2736494874},{"date":"2023-08-18","current":12.600549,"twenty":7.682302,"median":10.77014,"eighty":14.414236,"marketCap":2696517542},{"date":"2023-08-25","current":12.524739,"twenty":7.682302,"median":10.775777,"eighty":14.414236,"marketCap":2680294182},{"date":"2023-09-01","current":12.736312,"twenty":7.682302,"median":10.860325,"eighty":14.414236,"marketCap":2725570835},{"date":"2023-09-08","current":12.359651,"twenty":7.673532,"median":10.880858,"eighty":14.422787,"marketCap":2644965377},{"date":"2023-09-15","current":12.918778,"twenty":7.667175,"median":10.889015,"eighty":14.42444,"marketCap":2764618462},{"date":"2023-09-28","current":12.532559,"twenty":7.611737,"median":10.958302,"eighty":14.444688,"marketCap":2681967652},{"date":"2023-10-06","current":12.797351,"twenty":7.588051,"median":11.011961,"eighty":14.457824,"marketCap":2738633196},{"date":"2023-10-13","current":12.769113,"twenty":7.580695,"median":11.096578,"eighty":14.465913,"marketCap":2732590111},{"date":"2023-10-19","current":12.883805,"twenty":7.573339,"median":11.115476,"eighty":14.474002,"marketCap":2757134334},{"date":"2023-10-23","current":12.59425,"twenty":7.572799,"median":11.132253,"eighty":14.477743,"marketCap":2695169469},{"date":"2023-11-03","current":17.195274,"twenty":7.62174,"median":11.241456,"eighty":14.519143,"marketCap":2720103199},{"date":"2023-11-10","current":17.394641,"twenty":7.640811,"median":11.372092,"eighty":14.643452,"marketCap":2751640891},{"date":"2023-11-17","current":17.661517,"twenty":7.640811,"median":11.438902,"eighty":16.890898,"marketCap":2793857772},{"date":"2023-11-24","current":17.982114,"twenty":7.640811,"median":11.492792,"eighty":17.148952,"marketCap":2844572562},{"date":"2023-12-01","current":18.016299,"twenty":7.640811,"median":11.553326,"eighty":17.440461,"marketCap":2849980322},{"date":"2023-12-08","current":18.661226,"twenty":7.640811,"median":11.557767,"eighty":17.565365,"marketCap":2952000665},{"date":"2023-12-12","current":18.709488,"twenty":7.62445,"median":11.578433,"eighty":17.576231,"marketCap":2959635150},{"date":"2023-12-22","current":19.630196,"twenty":7.573339,"median":11.623748,"eighty":17.617565,"marketCap":3105281118},{"date":"2023-12-29","current":19.969752,"twenty":7.566096,"median":11.634109,"eighty":17.649371,"marketCap":3158995170},{"date":"2024-01-05","current":19.763491,"twenty":7.558852,"median":11.665444,"eighty":17.662479,"marketCap":3126366837},{"date":"2024-01-12","current":19.502073,"twenty":7.558852,"median":11.687905,"eighty":17.776541,"marketCap":3085013380},{"date":"2024-01-19","current":20.168832,"twenty":7.551609,"median":11.720741,"eighty":17.837403,"marketCap":3190487418},{"date":"2024-01-26","current":21.448344,"twenty":7.558852,"median":11.746866,"eighty":17.913789,"marketCap":3392892144},{"date":"2024-02-02","current":21.00221,"twenty":7.558852,"median":11.766499,"eighty":17.969193,"marketCap":3322318606},{"date":"2024-02-09","current":20.317065,"twenty":7.558852,"median":11.815089,"eighty":18.038532,"marketCap":3213936192},{"date":"2024-02-16","current":21.369919,"twenty":7.558852,"median":11.822152,"eighty":18.289015,"marketCap":3380486107},{"date":"2024-02-23","current":20.448923,"twenty":7.558852,"median":11.831227,"eighty":18.345506,"marketCap":3234794694},{"date":"2024-03-01","current":15.26694,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3134119531},{"date":"2024-03-08","current":15.628435,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3208330241},{"date":"2024-03-15","current":15.394322,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3160269547},{"date":"2024-03-22","current":16.254477,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3336849089},{"date":"2024-03-28","current":16.409395,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3368651972},{"date":"2024-04-05","current":16.375092,"twenty":7.558852,"median":11.831227,"eighty":18.345506,"marketCap":3361609898},{"date":"2024-04-12","current":15.955635,"twenty":7.558852,"median":11.831227,"eighty":18.345506,"marketCap":3275500484},{"date":"2024-04-19","current":15.15819,"twenty":7.558852,"median":11.831227,"eighty":18.345506,"marketCap":3111794543},{"date":"2024-04-26","current":15.337306,"twenty":7.566096,"median":11.832759,"eighty":18.341821,"marketCap":3148564867},{"date":"2024-05-03","current":11.611458,"twenty":7.566096,"median":11.824488,"eighty":18.341821,"marketCap":3220972037},{"date":"2024-05-10","current":12.207541,"twenty":7.566096,"median":11.824488,"eighty":18.341821,"marketCap":3386323049},{"date":"2024-05-17","current":12.237457,"twenty":7.566096,"median":11.826705,"eighty":18.341821,"marketCap":3394621664},{"date":"2024-05-24","current":11.849187,"twenty":7.566096,"median":11.852266,"eighty":18.341821,"marketCap":3286917180},{"date":"2024-05-31","current":12.037323,"twenty":7.566096,"median":11.865322,"eighty":18.341821,"marketCap":3339105261},{"date":"2024-06-07","current":11.389087,"twenty":7.566096,"median":11.855945,"eighty":18.341821,"marketCap":3159287145},{"date":"2024-06-14","current":11.295979,"twenty":7.566096,"median":11.826705,"eighty":18.341821,"marketCap":3133459370},{"date":"2024-06-21","current":11.382688,"twenty":7.558852,"median":11.82124,"eighty":18.345506,"marketCap":3157512040},{"date":"2024-06-28","current":11.191352,"twenty":7.558852,"median":11.816896,"eighty":18.345506,"marketCap":3104436407},{"date":"2024-07-05","current":11.163516,"twenty":7.558852,"median":11.766499,"eighty":18.345506,"marketCap":3096714701},{"date":"2024-07-12","current":11.712565,"twenty":7.558852,"median":11.73843,"eighty":18.345506,"marketCap":3249018693},{"date":"2024-07-19","current":12.230418,"twenty":7.558852,"median":11.73843,"eighty":18.345506,"marketCap":3392669049},{"date":"2024-07-26","current":13.097186,"twenty":7.558852,"median":11.73843,"eighty":18.345506,"marketCap":3633106994},{"date":"2024-08-02","current":23.993614,"twenty":7.558852,"median":11.73843,"eighty":18.421315,"marketCap":3204779062},{"date":"2024-08-09","current":24.000532,"twenty":7.558852,"median":11.766499,"eighty":18.612977,"marketCap":3205703023},{"date":"2024-08-16","current":24.872799,"twenty":7.558852,"median":11.815912,"eighty":18.716759,"marketCap":3322210044},{"date":"2024-08-23","current":26.021109,"twenty":7.558852,"median":11.815912,"eighty":18.903685,"marketCap":3475587491},{"date":"2024-08-30","current":26.194047,"twenty":7.558852,"median":11.825295,"eighty":19.189252,"marketCap":3498686504},{"date":"2024-09-06","current":24.121424,"twenty":7.558852,"median":11.856546,"eighty":19.2786,"marketCap":3221850333},{"date":"2024-09-13","current":25.277797,"twenty":7.558852,"median":11.889022,"eighty":19.5237,"marketCap":3376304794},{"date":"2024-09-20","current":26.043543,"twenty":7.558852,"median":11.915372,"eighty":19.629891,"marketCap":3478583948},{"date":"2024-09-27","current":26.67152,"twenty":7.558852,"median":11.951249,"eighty":19.738613,"marketCap":3562461596},{"date":"2024-10-04","current":26.512808,"twenty":7.558852,"median":11.976012,"eighty":19.831919,"marketCap":3541262711},{"date":"2024-10-11","current":26.038634,"twenty":7.558852,"median":12.002558,"eighty":19.950726,"marketCap":3477928312},{"date":"2024-10-18","current":26.577929,"twenty":7.558852,"median":12.011406,"eighty":20.027007,"marketCap":3549960810},{"date":"2024-10-25","current":25.199586,"twenty":7.558852,"median":12.037026,"eighty":20.121868,"marketCap":3365858334},{"date":"2024-11-01","current":15.924618,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":3648361907},{"date":"2024-11-08","current":18.165732,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":4161805532},{"date":"2024-11-15","current":17.515794,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":4012903414},{"date":"2024-11-22","current":17.512389,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":4012123367},{"date":"2024-11-29","current":17.612641,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":4035091389},{"date":"2024-12-06","current":17.80558,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":4079293997},{"date":"2024-12-13","current":17.040068,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":3903913650},{"date":"2024-12-20","current":16.604632,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":3804154431},{"date":"2024-12-27","current":16.626196,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":3809094723},{"date":"2025-01-03","current":16.813838,"twenty":7.558852,"median":12.155071,"eighty":20.157157,"marketCap":3852083926},{"date":"2025-01-10","current":16.160306,"twenty":7.551609,"median":12.096197,"eighty":20.160857,"marketCap":3702358426},{"date":"2025-01-17","current":17.128025,"twenty":7.551609,"median":12.096197,"eighty":20.160857,"marketCap":3924064839},{"date":"2025-01-24","current":17.159425,"twenty":7.551609,"median":12.096197,"eighty":20.160857,"marketCap":3931258597},{"date":"2025-01-31","current":17.569136,"twenty":7.551609,"median":12.096197,"eighty":20.160857,"marketCap":4025124134},{"date":"2025-02-07","current":17.792717,"twenty":7.551609,"median":12.155309,"eighty":20.160857,"marketCap":4076347156},{"date":"2025-02-14","current":18.170272,"twenty":7.551609,"median":12.155309,"eighty":20.160857,"marketCap":4162845593},{"date":"2025-02-21","current":17.63099,"twenty":7.551609,"median":12.197942,"eighty":20.160857,"marketCap":4039294971},{"date":"2025-02-28","current":5.892002,"twenty":7.49745,"median":12.215464,"eighty":20.160857,"marketCap":4269545075},{"date":"2025-03-07","current":5.595896,"twenty":7.470673,"median":12.222908,"eighty":20.164558,"marketCap":4054976316},{"date":"2025-03-14","current":5.58823,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":4049421138},{"date":"2025-03-21","current":5.628717,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":4078759423},{"date":"2025-03-28","current":5.734107,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":4155129253},{"date":"2025-04-04","current":5.559838,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":4028847581},{"date":"2025-04-11","current":5.476314,"twenty":7.461098,"median":12.215464,"eighty":20.160857,"marketCap":3968323077},{"date":"2025-04-17","current":5.464579,"twenty":7.461098,"median":12.215464,"eighty":20.160857,"marketCap":3959819995},{"date":"2025-04-25","current":5.506101,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":3989907825},{"date":"2025-05-02","current":6.609825,"twenty":7.465471,"median":12.222908,"eighty":20.164558,"marketCap":4125508791},{"date":"2025-05-09","current":6.779782,"twenty":7.44078,"median":12.222908,"eighty":20.164558,"marketCap":4231587323},{"date":"2025-05-16","current":6.716982,"twenty":7.418488,"median":12.222908,"eighty":20.164558,"marketCap":4192391022},{"date":"2025-05-23","current":6.434838,"twenty":7.377359,"median":12.222908,"eighty":20.164558,"marketCap":4016291067},{"date":"2025-05-30","current":6.592081,"twenty":7.353341,"median":12.222908,"eighty":20.164558,"marketCap":4114434419},{"date":"2025-06-06","current":6.687783,"twenty":7.340805,"median":12.222908,"eighty":20.164558,"marketCap":4174166268},{"date":"2025-06-13","current":6.627149,"twenty":7.303421,"median":12.222908,"eighty":20.164558,"marketCap":4136321564},{"date":"2025-06-20","current":6.681007,"twenty":7.264647,"median":12.225703,"eighty":20.168258,"marketCap":4169937079},{"date":"2025-06-27","current":6.749954,"twenty":7.20376,"median":12.225703,"eighty":20.168258,"marketCap":4212970170},{"date":"2025-07-03","current":6.654532,"twenty":7.166982,"median":12.225703,"eighty":20.168258,"marketCap":4153412721},{"date":"2025-07-11","current":6.475633,"twenty":7.10789,"median":12.225703,"eighty":20.168258,"marketCap":4041753402},{"date":"2025-07-18","current":6.28898,"twenty":7.00103,"median":12.225703,"eighty":20.168258,"marketCap":3925254496},{"date":"2025-07-25","current":6.317062,"twenty":6.779782,"median":12.225703,"eighty":20.168258,"marketCap":3942781652},{"date":"2025-08-01","current":6.100419,"twenty":6.722501,"median":12.225703,"eighty":20.168258,"marketCap":4160101710},{"date":"2025-08-08","current":6.135071,"twenty":6.698191,"median":12.225703,"eighty":20.168258,"marketCap":4183732211},{"date":"2025-08-15","current":6.802347,"twenty":6.687783,"median":12.207781,"eighty":20.168258,"marketCap":4638771947},{"date":"2025-08-22","current":6.79378,"twenty":6.687783,"median":12.207781,"eighty":20.168258,"marketCap":4632929720},{"date":"2025-08-29","current":6.987754,"twenty":6.687783,"median":12.096197,"eighty":20.168258,"marketCap":4765208206},{"date":"2025-09-05","current":7.21312,"twenty":6.687629,"median":12.011406,"eighty":20.168373,"marketCap":4918893659},{"date":"2025-09-12","current":7.524349,"twenty":6.687783,"median":12.007602,"eighty":20.168258,"marketCap":5131132179},{"date":"2025-09-19","current":7.415662,"twenty":6.687783,"median":11.952389,"eighty":20.168258,"marketCap":5057014372},{"date":"2025-09-26","current":7.423078,"twenty":6.687783,"median":11.934867,"eighty":20.168258,"marketCap":5062071823},{"date":"2025-10-03","current":7.412721,"twenty":6.687783,"median":11.934867,"eighty":20.168258,"marketCap":5055008832},{"date":"2025-10-10","current":6.492333,"twenty":6.687014,"median":11.911316,"eighty":20.168258,"marketCap":4427361803},{"date":"2025-10-17","current":6.072672,"twenty":6.672834,"median":11.893508,"eighty":20.168258,"marketCap":4141179870},{"date":"2025-10-24","current":6.486323,"twenty":6.654532,"median":11.866224,"eighty":20.168258,"marketCap":4423263524},{"date":"2025-10-31","current":6.210785,"twenty":6.627149,"median":11.852867,"eighty":20.168258,"marketCap":4548523965},{"date":"2025-11-07","current":6.178678,"twenty":6.60228,"median":11.852867,"eighty":20.168258,"marketCap":4525010505},{"date":"2025-11-14","current":6.351898,"twenty":6.547575,"median":11.852867,"eighty":20.168258,"marketCap":4651869766},{"date":"2025-11-21","current":6.255936,"twenty":6.492333,"median":11.852867,"eighty":20.168258,"marketCap":4581591131},{"date":"2025-11-28","current":6.591059,"twenty":6.486323,"median":11.852867,"eighty":20.168258,"marketCap":4827021049},{"date":"2025-12-05","current":6.483421,"twenty":6.483421,"median":11.852867,"eighty":20.168258,"marketCap":4748192065},{"date":"2025-12-12","current":6.635912,"twenty":6.47127,"median":11.852867,"eighty":20.168258,"marketCap":4859870094},{"date":"2025-12-19","current":6.623105,"twenty":6.47127,"median":11.852867,"eighty":20.168258,"marketCap":4850490885},{"date":"2025-12-26","current":6.606248,"twenty":6.47127,"median":11.721044,"eighty":20.168258,"marketCap":4838145228},{"date":"2026-01-02","current":6.544001,"twenty":6.47127,"median":11.583621,"eighty":20.168258,"marketCap":4792557907},{"date":"2026-01-09","current":6.782625,"twenty":6.47127,"median":11.418923,"eighty":20.168258,"marketCap":4967316573},{"date":"2026-01-16","current":6.846004,"twenty":6.47127,"median":11.345092,"eighty":20.168258,"marketCap":5013732753},{"date":"2026-01-23","current":7.041502,"twenty":6.47127,"median":11.233267,"eighty":20.168258,"marketCap":5156907476},{"date":"2026-01-30","current":6.888654,"twenty":6.47127,"median":11.166875,"eighty":20.168258,"marketCap":5044967702},{"date":"2026-02-06","current":7.058955,"twenty":6.47127,"median":11.047371,"eighty":20.168258,"marketCap":5169689376},{"date":"2026-02-10","current":6.663134,"twenty":6.47127,"median":10.91499,"eighty":20.168258,"marketCap":4879806367}],"updateTime":1770882325053},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"GHC\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"20445412","market":"us","labels":[],"media":"sec.gov","original_id":"AN162828025053825-GHC","pdf_url":"","pub_time":1763960400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000162828025053825/0001628280-25-053825-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 4.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025053825/a2025-11x24form8xkexhibit41.htm","primary":true,"translateUrl":"","linkName":"a2025-11x24form8xkexhibit41.htm","type":"EX-4.1","id":"NTFILEA3AVkBHMnxNAjhEz","market":"us","size":674254},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025053825/ghc-20251124.htm","primary":false,"translateUrl":"","linkName":"ghc-20251124.htm","type":"8-K","id":"NTFILE5BYFBfg5GAz2cVeU","market":"us","size":51392},{"description":"EXHIBIT 10.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025053825/a2025-11x24form8xkex101.htm","primary":false,"translateUrl":"","linkName":"a2025-11x24form8xkex101.htm","type":"EX-10.1","id":"NTFILEEg9ukaw9koHrnDo5","market":"us","size":1107975}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-24 13:00","pubTimestamp":1763960400,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20406587","market":"us","labels":[],"media":"sec.gov","original_id":"AN162828025052124-GHC","pdf_url":"","pub_time":1763010000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000162828025052124/0001628280-25-052124-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025052124/a2025-11x13form8xkex991.htm","primary":true,"translateUrl":"","linkName":"a2025-11x13form8xkex991.htm","type":"EX-99.1","id":"NTFILE7sjTyogqjZAYxsSq","market":"us","size":7383},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025052124/ghc-20251113.htm","primary":false,"translateUrl":"","linkName":"ghc-20251113.htm","type":"8-K","id":"NTFILEBXaDwuDBbmPzDFiw","market":"us","size":39100}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-13 13:00","pubTimestamp":1763010000,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20398140","market":"us","labels":[],"media":"sec.gov","original_id":"AN162828025051331-GHC","pdf_url":"","pub_time":1762923600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000162828025051331/0001628280-25-051331-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025051331/a2025-11x12form8xkex991.htm","primary":true,"translateUrl":"","linkName":"a2025-11x12form8xkex991.htm","type":"EX-99.1","id":"NTFILE7FdZxvzJVwQEGeGi","market":"us","size":6978},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025051331/ghc-20251112.htm","primary":false,"translateUrl":"","linkName":"ghc-20251112.htm","type":"8-K","id":"NTFILEGrkg5sUsb4QfJy6i","market":"us","size":39129}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-11-12 13:00","pubTimestamp":1762923600,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20336297","market":"us","labels":[],"media":"sec.gov","original_id":"AN162828025046930-GHC","pdf_url":"","pub_time":1761710400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046930/0001628280-25-046930-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046930/a2025q38-kexhibit991.htm","primary":true,"translateUrl":"","linkName":"a2025q38-kexhibit991.htm","type":"EX-99.1","id":"NTFILEJ48fcwedipkn812F","market":"us","size":553505},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046930/ghc-20251029.htm","primary":false,"translateUrl":"","linkName":"ghc-20251029.htm","type":"8-K","id":"NTFILEGJ79nexiHPW32AP8","market":"us","size":32538}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-10-29 12:00","pubTimestamp":1761710400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20336169","market":"us","labels":[],"media":"sec.gov","original_id":"AN162828025046925-GHC","pdf_url":"","pub_time":1761710400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"GHC","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046925/0001628280-25-046925-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046925/ghc-20250930.htm","primary":true,"translateUrl":"","linkName":"ghc-20250930.htm","type":"10-Q","id":"NTFILE76wpaguYoZBZ1JYS","market":"us","size":2505660},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046925/a2025q310-qex311.htm","primary":false,"translateUrl":"","linkName":"a2025q310-qex311.htm","type":"EX-31.1","id":"NTFILEEgzCGqnm3d5DAcBH","market":"us","size":9465},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046925/a2025q310-qex312.htm","primary":false,"translateUrl":"","linkName":"a2025q310-qex312.htm","type":"EX-31.2","id":"NTFILE9xPxsyo4zKxGrH9B","market":"us","size":9459},{"description":"EXHIBIT 32","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000162828025046925/a2025q310-qex32.htm","primary":false,"translateUrl":"","linkName":"a2025q310-qex32.htm","type":"EX-32","id":"NTFILEEBDyZv9tnY6E4Msv","market":"us","size":5383}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-10-29 12:00","pubTimestamp":1761710400,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19926306","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000063-GHC","pdf_url":"","pub_time":1753848000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000063/0000104889-25-000063-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000063/a2025q28-kexhibit991.htm","primary":true,"translateUrl":"","linkName":"a2025q28-kexhibit991.htm","type":"EX-99.1","id":"NTFILEF8xxqj1TBPBDYt4o","market":"us","size":556824},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000063/ghc-20250730.htm","primary":false,"translateUrl":"","linkName":"ghc-20250730.htm","type":"8-K","id":"NTFILE2i5xBf58cSnhCKjq","market":"us","size":32519}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-07-30 12:00","pubTimestamp":1753848000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19926151","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000062-GHC","pdf_url":"","pub_time":1753848000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"GHC","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000062/0000104889-25-000062-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000062/ghc-20250630.htm","primary":true,"translateUrl":"","linkName":"ghc-20250630.htm","type":"10-Q","id":"NTFILE7SC7dfof85rFRoVL","market":"us","size":2417670},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000062/a2025q210-qex311.htm","primary":false,"translateUrl":"","linkName":"a2025q210-qex311.htm","type":"EX-31.1","id":"NTFILEADEVE7JGHFNA2ihu","market":"us","size":9462},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000062/a2025q210-qex312.htm","primary":false,"translateUrl":"","linkName":"a2025q210-qex312.htm","type":"EX-31.2","id":"NTFILEBRRcTf11B32WA2yQ","market":"us","size":9456},{"description":"EXHIBIT 32","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000062/a2025q210-qex32.htm","primary":false,"translateUrl":"","linkName":"a2025q210-qex32.htm","type":"EX-32","id":"NTFILE4P82jD9ZWLes7Ws8","market":"us","size":5372}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-07-30 12:00","pubTimestamp":1753848000,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19819727","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000053-GHC","pdf_url":"","pub_time":1750996800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","symbol":"GHC","title":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000053/0000104889-25-000053-index.htm","us_notice_code":"Form 11-K","us_title_en":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000053/a2024savingsplanforgrahamh.htm","primary":true,"translateUrl":"","linkName":"a2024savingsplanforgrahamh.htm","type":"11-K","id":"NTFILE4pZe4qw7feqfRmHR","market":"us","size":159350},{"description":"EXHIBIT 23.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000053/a2024savingsplanforgrahamha.htm","primary":false,"translateUrl":"","linkName":"a2024savingsplanforgrahamha.htm","type":"EX-23.1","id":"NTFILE55aWdNbPZKCBa138","market":"us","size":2630},{"description":"EXHIBIT 23.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000053/a2024savingsplanforgrahamhb.htm","primary":false,"translateUrl":"","linkName":"a2024savingsplanforgrahamhb.htm","type":"EX-23.2","id":"NTFILE3N1AjuAsA4R64mH9","market":"us","size":2166}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2025-06-27 12:00","pubTimestamp":1750996800,"title_zh":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19819701","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000051-GHC","pdf_url":"","pub_time":1750996800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","symbol":"GHC","title":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000051/0000104889-25-000051-index.htm","us_notice_code":"Form 11-K","us_title_en":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000051/a2024kaplantaxdeferredsavib.htm","primary":true,"translateUrl":"","linkName":"a2024kaplantaxdeferredsavib.htm","type":"11-K","id":"NTFILEE7q97Aj59Smvnf6H","market":"us","size":155905},{"description":"EXHIBIT 23.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000051/a2024kaplantaxdeferredsavi.htm","primary":false,"translateUrl":"","linkName":"a2024kaplantaxdeferredsavi.htm","type":"EX-23.1","id":"NTFILE8eD2hXBYwSdv89uL","market":"us","size":2584},{"description":"EXHIBIT 23.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000051/a2024kaplantaxdeferredsavia.htm","primary":false,"translateUrl":"","linkName":"a2024kaplantaxdeferredsavia.htm","type":"EX-23.2","id":"NTFILEHxhg7zVt12Y7XpK1","market":"us","size":2173}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2025-06-27 12:00","pubTimestamp":1750996800,"title_zh":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19819700","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000049-GHC","pdf_url":"","pub_time":1750996800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","symbol":"GHC","title":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000049/0000104889-25-000049-index.htm","us_notice_code":"Form 11-K","us_title_en":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000049/a2024401ksavingsplanforghca.htm","primary":true,"translateUrl":"","linkName":"a2024401ksavingsplanforghca.htm","type":"11-K","id":"NTFILEFWKR4kxWepYyZd4s","market":"us","size":167319},{"description":"EXHIBIT 23.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000049/a2024401ksavingsplanforghcb.htm","primary":false,"translateUrl":"","linkName":"a2024401ksavingsplanforghcb.htm","type":"EX-23.1","id":"NTFILEAnKhnN1m858yfQMd","market":"us","size":2572},{"description":"EXHIBIT 23.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000049/a2024401ksavingsplanforghc.htm","primary":false,"translateUrl":"","linkName":"a2024401ksavingsplanforghc.htm","type":"EX-23.2","id":"NTFILE4S2rBG4LmPver6UA","market":"us","size":2189}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2025-06-27 12:00","pubTimestamp":1750996800,"title_zh":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19611011","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000035-GHC","pdf_url":"","pub_time":1746590400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000035/0000104889-25-000035-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000035/ghc-20250506.htm","primary":true,"translateUrl":"","linkName":"ghc-20250506.htm","type":"8-K","id":"NTFILE2mg1PbiPrCaxAJxQ","market":"us","size":45870}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-05-07 12:00","pubTimestamp":1746590400,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19585557","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000033-GHC","pdf_url":"","pub_time":1745985600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000033/0000104889-25-000033-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000033/a2025q18-kexhibit991.htm","primary":true,"translateUrl":"","linkName":"a2025q18-kexhibit991.htm","type":"EX-99.1","id":"NTFILE9bm9VXA2Ka3gP21g","market":"us","size":355344},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000033/ghc-20250430.htm","primary":false,"translateUrl":"","linkName":"ghc-20250430.htm","type":"8-K","id":"NTFILE8pKmzZZFsuZ9kTXZ","market":"us","size":32269}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-04-30 12:00","pubTimestamp":1745985600,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19585532","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000032-GHC","pdf_url":"","pub_time":1745985600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"GHC","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000032/0000104889-25-000032-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000032/ghc-20250331.htm","primary":true,"translateUrl":"","linkName":"ghc-20250331.htm","type":"10-Q","id":"NTFILEDEPYXH1eRwTVt9qk","market":"us","size":1744512},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000032/a2025q110-qex311.htm","primary":false,"translateUrl":"","linkName":"a2025q110-qex311.htm","type":"EX-31.1","id":"NTFILE3hvqQ64D2YJsgt8E","market":"us","size":9463},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000032/a2025q110-qex312.htm","primary":false,"translateUrl":"","linkName":"a2025q110-qex312.htm","type":"EX-31.2","id":"NTFILED5S1uDqXoNLFrAC3","market":"us","size":9457},{"description":"EXHIBIT 32","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000032/a2025q110-qex32.htm","primary":false,"translateUrl":"","linkName":"a2025q110-qex32.htm","type":"EX-32","id":"NTFILEHZPA3PZ6WBDn8Q4Z","market":"us","size":5375}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2025-04-30 12:00","pubTimestamp":1745985600,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19169791","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000023-GHC","pdf_url":"","pub_time":1740546000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000023/0000104889-25-000023-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000023/a2024q48-kexhibit991.htm","primary":true,"translateUrl":"","linkName":"a2024q48-kexhibit991.htm","type":"EX-99.1","id":"NTFILE42c4mec3PddmNsBR","market":"us","size":615231},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000023/ghc-20250226.htm","primary":false,"translateUrl":"","linkName":"ghc-20250226.htm","type":"8-K","id":"NTFILEAT8RTF7JwyeALvp4","market":"us","size":32695}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-02-26 13:00","pubTimestamp":1740546000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19169763","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000022-GHC","pdf_url":"","pub_time":1740546000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"GHC","title":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/0000104889-25-000022-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/ghc-20241231.htm","primary":true,"translateUrl":"","linkName":"ghc-20241231.htm","type":"10-K","id":"NTFILEAM6Exx9gYEGGDu4F","market":"us","size":3723473},{"description":"EXHIBIT 19","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex19.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex19.htm","type":"EX-19","id":"NTFILE3bhAjnzratPnjpxK","market":"us","size":34169},{"description":"EXHIBIT 21","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex21.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex21.htm","type":"EX-21","id":"NTFILE4codiHfTZHEQN8ru","market":"us","size":363843},{"description":"EXHIBIT 23","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex23.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex23.htm","type":"EX-23","id":"NTFILEDYYNQp83zTgW91UR","market":"us","size":2058},{"description":"EXHIBIT 24","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex24.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex24.htm","type":"EX-24","id":"NTFILEB4nnzkCba6SZ24g9","market":"us","size":10414},{"description":"EXHIBIT 31.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex311.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex311.htm","type":"EX-31.1","id":"NTFILE6RAp6Qb9fqF2yF1H","market":"us","size":8230},{"description":"EXHIBIT 31.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex312.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex312.htm","type":"EX-31.2","id":"NTFILE3Xxv32wueriK39Hg","market":"us","size":8146},{"description":"EXHIBIT 32","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/a2024q410-kex32.htm","primary":false,"translateUrl":"","linkName":"a2024q410-kex32.htm","type":"EX-32","id":"NTFILECD4GbugEaf5JgJdn","market":"us","size":5217},{"description":"GHC STOCK GRAPH","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000022/ghc-20241231_g1.jpg","primary":false,"translateUrl":"","linkName":"ghc-20241231_g1.jpg","type":"GRAPHIC","id":"NTFILEDCfxjRZ7bbbmciqP","market":"us","size":50526}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2025-02-26 13:00","pubTimestamp":1740546000,"title_zh":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19165919","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488925000019-GHC","pdf_url":"","pub_time":1740459600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000019/0000104889-25-000019-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000019/a2025-02x25form8xkex991.htm","primary":true,"translateUrl":"","linkName":"a2025-02x25form8xkex991.htm","type":"EX-99.1","id":"NTFILEDDFyXmkN52gowF5w","market":"us","size":5741},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488925000019/ghc-20250225.htm","primary":false,"translateUrl":"","linkName":"ghc-20250225.htm","type":"8-K","id":"NTFILEAigxU4Lxhm2Q1VnC","market":"us","size":34776}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-02-25 13:00","pubTimestamp":1740459600,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19018856","market":"us","labels":[],"media":"sec.gov","original_id":"AN197185725000059-GHC","pdf_url":"","pub_time":1736139600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"GHC","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000197185725000059/0001971857-25-000059-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000197185725000059/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEGt6odAwBsMqxnJDD","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-01-06 13:00","pubTimestamp":1736139600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"18773971","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488924000066-GHC","pdf_url":"","pub_time":1730260800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"GHC","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000066/0000104889-24-000066-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000066/a2024q38-kexhibit991.htm","primary":true,"translateUrl":"","linkName":"a2024q38-kexhibit991.htm","type":"EX-99.1","id":"NTFILE6HPcZJz81KMXq1ge","market":"us","size":582632},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000066/ghc-20241030.htm","primary":false,"translateUrl":"","linkName":"ghc-20241030.htm","type":"8-K","id":"NTFILE9YLdY6XxpseY923U","market":"us","size":32282}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2024-10-30 12:00","pubTimestamp":1730260800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"18773925","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488924000065-GHC","pdf_url":"","pub_time":1730260800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"GHC","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000065/0000104889-24-000065-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000065/ghc-20240930.htm","primary":true,"translateUrl":"","linkName":"ghc-20240930.htm","type":"10-Q","id":"NTFILECach9hRXEN95seGk","market":"us","size":2253571},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000065/a2024q310-qex311.htm","primary":false,"translateUrl":"","linkName":"a2024q310-qex311.htm","type":"EX-31.1","id":"NTFILEHMzNhnWsTMtLMU9P","market":"us","size":9470},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000065/a2024q310-qex312.htm","primary":false,"translateUrl":"","linkName":"a2024q310-qex312.htm","type":"EX-31.2","id":"NTFILE7pkA3GnSJtgFq9R1","market":"us","size":9464},{"description":"EXHIBIT 32","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000065/a2024q310-qex32.htm","primary":false,"translateUrl":"","linkName":"a2024q310-qex32.htm","type":"EX-32","id":"NTFILE8jfeSbBc1o7xQZPS","market":"us","size":5383}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2024-10-30 12:00","pubTimestamp":1730260800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"18680075","market":"us","labels":[],"media":"sec.gov","original_id":"AN10488924000062-GHC","pdf_url":"","pub_time":1728014400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","symbol":"GHC","title":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000062/0000104889-24-000062-index.htm","us_notice_code":"Form 11-K","us_title_en":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000062/a2023savingsplanforgrahamh.htm","primary":true,"translateUrl":"","linkName":"a2023savingsplanforgrahamh.htm","type":"11-K","id":"NTFILE5GJhMrjKVYzhJnDt","market":"us","size":140312},{"description":"EXHIBIT 23","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/104889/000010488924000062/a2023savingsplanforgrahamha.htm","primary":false,"translateUrl":"","linkName":"a2023savingsplanforgrahamha.htm","type":"EX-23","id":"NTFILEHGACsxxD45a3KrSz","market":"us","size":2188}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2024-10-04 12:00","pubTimestamp":1728014400,"title_zh":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":8,"pageCount":1,"totalSize":160,"code":"91000000","status":"200"}]}}