Biggest stock movers today: Equifax (EFX) +7.25% leads the S&P 500 (October 15, 2026)
The S&P 500 closed at 7,744.06, up 0.33% on Thursday, as breadth was positive with 374 advancers and 119 decliners. The Dow gained 1.08%, while the Nasdaq edged up 0.08% and the Russell 2000 rose 1.38%. For the week, the S&P 500 is down 0.86% and the Nasdaq is down 2.39%, while the Dow is up 1.01%.
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| EFX | Equifax | 161.26 | +7.25% | +10.62% | $322M |
| RDDT | 159.36 | +7.24% | -0.34% | $627M | |
| FICO | Fair Isaac | 769.93 | +6.99% | +15.33% | $594M |
| IP | International Paper | 34.10 | +6.90% | +6.16% | $307M |
| APP | AppLovin | 279.29 | +6.52% | +0.81% | $1.2B |
| INTU | Intuit | 330.17 | +6.36% | +9.06% | $1.5B |
| COIN | Coinbase | 183.81 | +6.32% | +2.46% | $1.6B |
| CSGP | CoStar | 32.00 | +6.28% | +7.85% | $178M |
| EXPE | Expedia | 291.87 | +6.25% | +6.44% | $688M |
| NOW | ServiceNow | 148.57 | +6.14% | +5.47% | $2.6B |
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| HPE | Hewlett Packard Enterprise | 58.63 | -7.10% | -20.19% | $2.0B |
| DELL | Dell Technologies | 473.39 | -6.80% | -19.22% | $7.7B |
| P | Everpure | 133.40 | -5.72% | -13.65% | $839M |
| ANET | Arista Networks | 185.58 | -5.04% | -14.38% | $1.9B |
| WMB | Williams Companies | 69.22 | -4.92% | -4.75% | $878M |
| COHR | Coherent | 250.60 | -4.83% | -19.84% | $2.4B |
| TER | Teradyne | 343.21 | -4.52% | -14.77% | $1.5B |
| KEYS | Keysight Technologies | 342.08 | -4.35% | -10.63% | $587M |
| FIX | Comfort Systems USA | 1,481.27 | -3.92% | -13.66% | $1.2B |
| AMAT | Applied Materials | 430.01 | -3.72% | -15.19% | $5.2B |
| Market | Last | Change | Week to date |
|---|---|---|---|
| S&P 500 | 7,744.06 | +0.33% | -0.86% |
| Nasdaq | 26,713.03 | +0.08% | -2.39% |
| Dow Jones | 52,177.69 | +1.08% | +1.01% |
| Russell 2000 | 2,767.27 | +1.38% | -1.41% |
| VIX | 16.46 | -2.43% | - |
| 10-year yield (%) | 5.09 | -1.95% | - |
| US Dollar Index | 102.03 | -0.51% | - |
| Gold ($/oz) | 4,190.70 | +2.02% | - |
| WTI crude ($) | 96.16 | +1.13% | - |
| Bitcoin ($) | 82,298.07 | +0.90% | - |
How did the major stock market indices perform on October 15, 2026?
The S&P 500 rose 0.33% to 7,744.06, the Dow gained 1.08% to 52,177.69, the Nasdaq added 0.08% to 26,713.03, and the Russell 2000 climbed 1.38% to 2,767.27. Market breadth was positive with 374 advancing stocks and 119 declining.
On Thursday, October 15, 2026, the S&P 500 closed at 7,744.06, up 0.33%. The Dow Jones Industrial Average finished at 52,177.69, up 1.08%, and the Nasdaq Composite ended at 26,713.03, up 0.08%. The Russell 2000 closed at 2,767.27, up 1.38%.
Advancing stocks outpaced decliners by 374 to 119, with 10 unchanged, across 503 S&P 500 constituents. The VIX, a measure of market volatility, fell 2.43% to 16.46. The 10-year Treasury yield slipped 1.95% to 5.089%, and the US Dollar Index declined 0.51% to 102.028.
Which S&P 500 stocks gained the most on October 15, 2026?
Top gainers included Equifax (+7.25%), Reddit (+7.24%), Fair Isaac (+6.99%), International Paper (+6.90%), and AppLovin (+6.52%). Each had a minimum dollar volume of $50 million.
Equifax led the S&P 500 with a 7.25% gain to $161.26, followed by Reddit, which rose 7.24% to $159.36. Fair Isaac climbed 6.99% to $769.93, International Paper added 6.90% to $34.10, and AppLovin advanced 6.52% to $279.29.
Other notable gainers included Intuit (+6.36% to $330.17), Coinbase (+6.32% to $183.81), CoStar (+6.28% to $32.00), Expedia (+6.25% to $291.87), and ServiceNow (+6.14% to $148.57). The reasons for these moves are not in our data; readers can check company SEC filings and press releases.
Which S&P 500 stocks fell the most on October 15, 2026?
Hewlett Packard Enterprise fell 7.10%, Dell Technologies dropped 6.80%, Everpure lost 5.72%, Arista Networks declined 5.04%, and Williams Companies slid 4.92%. These were the largest declines among S&P 500 constituents.
Hewlett Packard Enterprise was the biggest decliner, down 7.10% to $58.63. Dell Technologies fell 6.80% to $473.39, Everpure dropped 5.72% to $133.40, Arista Networks lost 5.04% to $185.58, and Williams Companies declined 4.92% to $69.22.
Other losers included Coherent (-4.83% to $250.60), Teradyne (-4.52% to $343.21), Keysight Technologies (-4.35% to $342.08), Comfort Systems USA (-3.92% to $1,481.27), and Applied Materials (-3.72% to $430.01). The reasons for these declines are not in our data; readers can check company SEC filings and press releases.
What were the week-to-date winners and losers in the S&P 500?
For the week starting October 12, Fair Isaac leads with a 15.33% gain, followed by Cognizant (+11.10%) and Equifax (+10.62%). Lumentum is the worst performer, down 21.19%, followed by Skydance (-20.74%) and Ciena (-20.73%).
Week-to-date, Fair Isaac is up 15.33% to $769.93, Cognizant has gained 11.10% to $65.77, and Equifax has risen 10.62% to $161.26. Other week gainers include Tyler Technologies (+10.34% to $363.62), eBay (+9.56% to $122.91), and Estée Lauder (+9.32% to $107.19).
On the downside, Lumentum has fallen 21.19% to $869.54, Skydance has dropped 20.74% to $7.26, and Ciena has declined 20.73% to $356.52. Hewlett Packard Enterprise is down 20.19% to $58.63, and Coherent has lost 19.84% to $250.60. The reasons for these weekly moves are not in our data; readers can check company SEC filings and press releases.
Frequently asked questions
What was the S&P 500 closing price on October 15, 2026?
The S&P 500 closed at 7,744.06, up 0.33% for the day.
Which stock had the largest weekly gain in the S&P 500?
Fair Isaac had the largest weekly gain, rising 15.33% for the week starting October 12, 2026.
How did the Dow Jones Industrial Average perform on October 15, 2026?
The Dow Jones Industrial Average closed at 52,177.69, up 1.08% for the day.
Bottom line
Thursday's session saw broad gains across major indices, with the Dow leading and small caps outperforming. However, weekly performance remains mixed, with the S&P 500 and Nasdaq down for the week. Past performance does not guarantee future results. Live tables are updated during the session on our stock market page.