MW These stocks fell the most Friday as Big Tech took a dive
By Philip van Doorn
Chip makers dominated the list of the day's biggest losers among the S&P 500
Micron's stock led the S&P 500 lower on June 5, with a 13% decline, while Intel and Sandisk were each down 11% for the day.
Friday's stock-market action might have made for a shortening of memories. It is no fun to see your Micron shares slide 13% during a single trading session, even if they had risen 249% in 2026 through Thursday.
Shares of Marvel Technology $(MRVL)$, meanwhile, fell 16.7% on Friday. The stock was still up 210% for 2026. That company is among several that might be added to the S&P 500 as soon as Friday.
On Friday the S&P 500 SPX fell 2.6%. Here is how the large-cap U.S. benchmark index's 11 sectors fared for the day:
S&P 500 sector June 5 price change 2026 price change 2025 price change
Information technology -5.8% 16.8% 23.3%
Consumer discretionary -2.4% -2.6% 5.3%
Materials -2.0% 9.9% 8.4%
Energy -1.8% 27.4% 5.0%
Communication services -1.7% 4.8% 32.4%
Industrials -1.1% 12.1% 17.7%
Financial 0.1% -4.8% 13.3%
Healthcare 0.7% -1.4% 12.5%
Real estate 0.7% 11.1% -0.3%
Utilities 0.8% 3.3% 12.7%
Consumer staples 1.6% 7.6% 1.3%
Source: LSEG
The Dow Jones Industrial Average DJIA declined 1.3% on Friday, while the Nasdaq Composite Index COMP fell 4.2%. Narrowing down to its largest 100 nonfinancial companies, the tech-dominated Nasdaq-100 index NDX dropped 4.8% on Friday, but it was still up 14.7% to date in 2026. Narrowing further, the Nasdaq-100 Technology Index XX:NDXT of 45 stocks fell 7.4% on Friday but ended the day up 32.5% for 2026.
The iShares Semiconductor ETF SOXX, which tracks the NYSE Semiconductor Index of 30 chip makers and related companies, declined 10.4% on Friday, but it was still up 79.2% for 2026.
Read: If the semiconductor rally loses steam, it's retail investors who could get hurt the most
Investors might have been concerned about a possible change in policy by the Federal Open Market Committee, to raise short-term interest rates following a strong employment report for May.
Among the S&P 500, 53% of stocks were down on Friday, while 65 of the stocks fell at least 5% and 16 sank at least 10%. Here are the day's 20 largest decliners among the S&P 500.
Company June 5 price change 2026 price change 2025 price change Micron Technology -13.3% 203% 239% Teradyne -12.0% 85% 54% First Solar -11.4% 7% 48% Sandisk -11.4% 557% N/A Intel -11.3% 169% 84% Super Micro Computer -11.2% 42% -4% Western Digital -11.1% 197% 282% ON Semiconductor -11.0% 117% -14% Qualcomm -11.0% 26% 11% Advanced Micro Devices -10.9% 118% 77% Coherent -10.6% 104% 95% Monolithic Power Systems -10.4% 63% 53% Corning -10.2% 103% 84% Lam Research -9.8% 77% 137% Applied Materials -9.7% 76% 58% Oracle -9.6% 10% 17% KLA -9.5% 59% 93% Freeport-McMoRan -9.1% 25% 33% Ciena -8.9% 109% 176% Cadence Design Systems -8.6% 20% 4% Source: LSEG
All of these stocks are in the IT sector except for Freeport-McMoRan $(FCX)$.
Click on the tickers for more about each company.
Read: Tomi Kilgore's detailed guide to the information available on the MarketWatch quote page
-Philip van Doorn
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(END) Dow Jones Newswires
June 05, 2026 17:10 ET (21:10 GMT)
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