Below are the top 10 S&P 500 stock gainers for the week ended November 6:

AppLovin Shares Soar After Record Quarterly Results and Upbeat Forecast

AppLovin shares surged 71.21% this week, leading all S&P 500 constituents.

The rally followed the company's third-quarter results, released November 4, which showed revenue climbing 55% year over year to $2.18 billion and net income rising 72% to $1.44 billion.

AppLovin also provided an upbeat fourth-quarter revenue outlook of $2.365 billion to $2.395 billion. Its board approved an additional $3.2 billion in share repurchase authorization, bringing its total authorization to $3.6 billion.

The strong results and optimistic outlook reinforced investor confidence in the company's advertising technology business and growth prospects.

Fiserv Shares Jump as Company Doubles Cost-Saving Target

Fiserv shares climbed 25.71% this week after the financial technology company reported third-quarter results and announced an expanded cost-reduction initiative.

Third-quarter adjusted earnings came in at $1.75 per share, while GAAP revenue declined 1% year over year to $5.20 billion. The company also reported a substantial GAAP loss, largely reflecting a goodwill impairment charge.

Fiserv doubled its Project Elevate cost-savings target to $1 billion from $500 million and said it expects to repurchase $500 million of shares in the fourth quarter.

The expanded savings program and planned buybacks provided investors with potential reasons to reassess the company's outlook, although the quarterly results also highlighted ongoing operating challenges.

IDEXX Laboratories Rallies After Raising Full-Year Guidance

IDEXX Laboratories shares advanced 22.65% this week after the veterinary diagnostics company reported stronger third-quarter results and raised its full-year financial outlook.

Revenue increased 10% year over year to $1.214 billion, while earnings per share rose 18% to $4.01. Recurring revenue from companion-animal diagnostics also increased 11%, supported by higher testing volumes and product innovation.

IDEXX raised its 2026 revenue forecast to $4.741 billion-$4.767 billion and increased its earnings-per-share outlook to $14.96-$15.16.

The improved guidance reflected stronger operating performance and continued demand for its veterinary diagnostic products.

Mosaic Shares Gain as Investors Assess Operational Improvements

Mosaic shares rose 21.59% this week after the fertilizer producer reported third-quarter results and highlighted progress in operational improvements.

The company reported revenue of $3.1 billion, an operating loss of $97 million and a net loss of $72 million. Adjusted EBITDA totaled $324 million.

Mosaic said improvements in working capital and production management helped strengthen operating cash flow during the quarter. It also secured a fourth-quarter sulfur contract expected to support free cash flow and refinanced and extended all long-term debt maturities through 2028.

However, the company continued to face operational and cost pressures, and the available information does not establish a single definitive catalyst for the stock's weekly advance.

Airbnb Shares Rally After Raising Full-Year Revenue Growth Outlook

Airbnb shares gained 15.57% this week after the vacation rental platform reported stronger-than-expected third-quarter results and raised its full-year revenue growth forecast.

Revenue increased 19% year over year to approximately $4.9 billion, while gross booking value climbed 21% to $27.7 billion. Nights and seats booked rose 16% to 155 million.

The company raised its 2026 revenue growth outlook to the high teens, compared with its previous forecast of at least the mid-teens, citing resilient travel demand and accelerating growth across major markets.

The improved outlook helped reinforce investor confidence in Airbnb's growth momentum.

First Solar Shares Rally as Democrats' Election Victory Boosts Clean-Energy Stocks

First Solar shares climbed 15.33% this week as solar and renewable energy stocks rallied following Democrats' victory in the U.S. midterm elections.

Democrats won control of both the House of Representatives and the Senate, raising expectations that Congress could provide greater support for renewable energy and limit potential rollbacks of federal clean-energy incentives.

First Solar, a major U.S. solar panel manufacturer, advanced alongside other clean-energy stocks, including Enphase Energy, SolarEdge Technologies and Sunrun. Investors viewed the election results as potentially favorable for the sector's policy outlook.

The rally reflected expectations of a more supportive regulatory environment for solar companies, although any changes to federal incentives would still depend on the legislative process.

Moderna Shares Rise After Raising Revenue Forecast

Moderna shares advanced 14.64% this week after the biotechnology company reported stronger-than-expected third-quarter results and raised its full-year revenue outlook.

Third-quarter revenue increased 29% year over year to $1.3 billion, while the company reported GAAP net income of approximately $200 million, compared with a loss in the year-earlier period.

Moderna raised its 2026 revenue growth forecast to 15%-25%, compared with its previous outlook of up to 10% growth, signaling expectations for its first annual revenue increase since 2022.

The improved outlook and return to quarterly profitability provided a boost to investor sentiment toward the biotechnology company.

Tapestry Shares Rally After Earnings Beat and Higher Full-Year Guidance

Tapestry shares advanced 14.20% this week after the owner of Coach and Kate Spade reported stronger-than-expected fiscal first-quarter results and raised its full-year outlook.

Revenue increased 11% year over year to $1.9 billion, led by 16% growth at Coach. Non-GAAP earnings per share rose 32% to $1.82, while gross margin expanded 220 basis points on a non-GAAP basis.

Tapestry raised its fiscal 2027 revenue forecast to $8.5 billion-$8.6 billion and increased its adjusted earnings-per-share outlook to $8.25-$8.35, up from its previous forecast of $7.80-$7.90.

The stronger outlook reflected continued momentum at Coach, improved margins and confidence in the company's growth strategy.

Clorox Shares Gain After Better-Than-Expected Quarterly Results

Clorox shares rose 13.59% this week after the consumer products company reported better-than-expected fiscal first-quarter results.

Net sales increased 33% year over year to $1.91 billion, partly reflecting the acquisition of GOJO. Organic sales increased 18%, while adjusted earnings per share climbed 82% to $1.55.

However, the company maintained its full-year adjusted earnings outlook of $5.70-$6.00 per share and warned of higher-than-normal inflationary pressures. Gross margin declined 130 basis points to 40.4%, reflecting higher commodity, manufacturing and logistics costs.

The quarterly earnings beat provided a positive near-term signal, although the company's cautious outlook highlighted continued cost pressures.

Corpay Shares Advance Following Strong Earnings and Business Divestiture

Corpay shares climbed 13.52% this week after the corporate payments company reported strong third-quarter results and announced the completion of a business divestiture.

Revenue increased 18% year over year to $1.38 billion, while adjusted earnings per share rose 32%. Organic revenue growth reached 11%, exceeding the company's expectations.

On November 4, Corpay also completed the sale of its UK-based vehicle maintenance business to OEConnection, marking another step in its effort to shift its portfolio toward Corporate Payments.

The combination of earnings growth and portfolio restructuring provided positive developments for investors.

What Drove This Week's Top Performers?

The week's biggest winners were supported by a combination of company-specific developments, stronger earnings, improved financial forecasts and broader sector rotation.

AppLovin led the group after delivering record quarterly results and providing an upbeat fourth-quarter revenue outlook. Fiserv and IDEXX also attracted investor attention following their quarterly announcements, although their underlying financial performances differed.

Airbnb, Moderna and Tapestry benefited from stronger results and improved guidance, while Clorox and Corpay reported solid quarterly earnings.

First Solar stood out as a beneficiary of a broader rally in clean-energy stocks following Democrats' election victory, as investors reassessed the sector's regulatory and policy outlook. Mosaic also posted substantial gains, although a definitive company-specific catalyst for its advance was not established.

Overall, the rankings highlight how earnings surprises, changes in financial guidance, corporate restructuring and political developments can influence individual stock performance. However, weekly share-price gains do not necessarily indicate an improvement in underlying business fundamentals, making it important to distinguish between rallies supported by identifiable developments and those driven primarily by market sentiment.