Best stock of the week: Hasbro (HAS) +18.91%, plus the biggest losers (October 23, 2026)
For the trading week starting October 19, 2026, the S&P 500 slipped -0.47% to 7,623.68 while the Nasdaq dropped -0.71% to 25,955.34. The Dow Jones rose +0.41% and the Russell 2000 advanced +2.00%, even as Friday session breadth showed negative sentiment with 361 decliners against 124 advancers. Specific catalysts behind individual moves are not contained in our data, and past performance does not guarantee future results.
| Ticker | Company | Price ($) | Week | Last day | Avg. daily volume |
|---|---|---|---|---|---|
| HAS | Hasbro | 117.44 | +18.91% | +0.18% | $511M |
| CRL | Charles River Laboratories | 345.37 | +15.07% | +1.68% | $537M |
| ROP | Roper Technologies | 438.14 | +14.48% | +0.44% | $447M |
| ALLE | Allegion | 178.98 | +14.33% | +1.39% | $234M |
| CRWD | CrowdStrike | 257.57 | +13.27% | +8.25% | $2.4B |
| EFX | Equifax | 182.36 | +13.09% | -2.55% | $474M |
| SKYD | Skydance | 7.77 | +12.45% | -0.26% | $265M |
| IT | Gartner | 230.28 | +12.14% | -1.77% | $267M |
| HPQ | HP | 33.64 | +12.10% | -0.36% | $342M |
| NOW | ServiceNow | 158.96 | +11.97% | +1.25% | $1.9B |
| Ticker | Company | Price ($) | Week | Last day | Avg. daily volume |
|---|---|---|---|---|---|
| FIX | Comfort Systems USA | 1,160.86 | -19.33% | -9.26% | $924M |
| HWM | Howmet Aerospace | 185.91 | -15.86% | -3.82% | $1.1B |
| FLEX | Flex | 76.55 | -15.38% | -0.18% | $642M |
| PWR | Quanta Services | 546.43 | -13.52% | -1.09% | $915M |
| LRCX | Lam Research | 230.10 | -12.82% | -0.02% | $3.4B |
| BE | Bloom Energy | 193.30 | -12.66% | -11.24% | $4.0B |
| KLAC | KLA | 145.61 | -12.15% | -1.50% | $2.0B |
| GEV | GE Vernova | 815.00 | -11.53% | -1.50% | $3.1B |
| NRG | NRG Energy | 92.31 | -11.03% | -2.19% | $291M |
| T | AT&T | 20.93 | -10.71% | -7.96% | $1.4B |
| Market | Last | Change | Week to date |
|---|---|---|---|
| S&P 500 | 7,623.68 | -0.52% | -0.47% |
| Nasdaq | 25,955.34 | -0.21% | -0.71% |
| Dow Jones | 52,215.16 | -1.23% | +0.41% |
| Russell 2000 | 2,775.90 | -0.29% | +2.00% |
| VIX | 19.45 | +2.21% | - |
| 10-year yield (%) | 4.99 | +0.71% | - |
| US Dollar Index | 101.81 | +0.20% | - |
| Gold ($/oz) | 4,010.50 | -1.23% | - |
| WTI crude ($) | 103.25 | +3.80% | - |
| Bitcoin ($) | 81,324.38 | +0.02% | - |
Which stocks gained the most for the week?
Hasbro led all S&P 500 constituents this week with an advance of +18.91%, closing at 117.44. Other top weekly gainers included Charles River Laboratories, which rose +15.07% to 345.37, and Roper Technologies, gaining +14.48% to 438.14.
Several other companies posted double-digit gains from October 19 through October 23. Allegion gained +14.33% to trade at 178.98, while CrowdStrike climbed +13.27% to 257.57 on $2.4B in weekly dollar volume.
Equifax climbed +13.09% to 182.36, followed by Skydance with a +12.45% gain to 7.77. Gartner added +12.14% to 230.28, HP rose +12.10% to 33.64, and ServiceNow gained +11.97% to reach 158.96. The specific reasons for these gains are not in our data; investors can consult company SEC filings and press releases.
Which stocks dropped the most this week?
Comfort Systems USA fell the hardest across the index, declining -19.33% to close at 1,160.86. Howmet Aerospace dropped -15.86% to 185.91, and Flex lost -15.38% to reach 76.55.
Industrial and technology names were well represented among the steepest weekly pullbacks. Quanta Services fell -13.52% to 546.43, and Lam Research decreased -12.82% to 230.10 with $3.4B in weekly dollar volume.
Bloom Energy dropped -12.66% to 193.30, KLA retreated -12.15% to 145.61, and GE Vernova shed -11.53% to 815.00 on $3.1B in dollar volume. NRG Energy dropped -11.03% to 92.31, while AT&T retreated -10.71% to 20.93. News catalysts for these retreats are not in our data.
How did major indices and macro assets perform?
Major indexes closed mixed for the week, with the S&P 500 down -0.47% and the Nasdaq down -0.71%, while the Dow gained +0.41% and the Russell 2000 advanced +2.00%. Across commodities and rates, WTI crude jumped +3.80% on Friday to $103.25.
On Friday, all four major equity gauges slipped during intraday action: the Dow fell -1.23% to 52,215.16, the S&P 500 fell -0.52%, the Russell 2000 gave up -0.29%, and the Nasdaq fell -0.21%. Breadth across the S&P 500 was heavily negative with 361 stocks down, 124 up, and 18 flat.
In macroeconomic assets, the VIX rose +2.21% to 19.45. The 10-year Treasury yield rose +0.71% to 4.988%, and the US Dollar Index climbed +0.20% to 101.814. Gold fell -1.23% to $4,010.50 per ounce, while Bitcoin held relatively flat, edging up +0.02% to $81,324.38.
Frequently asked questions
What was the best performing S&P 500 stock this week?
Hasbro was the top weekly gainer, advancing +18.91% to 117.44 with $511.2M in dollar volume.
What stock declined the most during the week?
Comfort Systems USA was the biggest weekly decliner, sliding -19.33% to 1,160.86.
Why did individual stocks make large weekly moves?
The underlying reasons for individual company moves are not provided in our data; readers should review official company press releases and SEC filings for details.
Bottom line
The trading week concluded with mixed benchmark performance as large-cap indices like the S&P 500 and Nasdaq posted modest declines, while the Dow and Russell 2000 finished higher. Intraday trading on Friday reflected broad pressure, with decliners outnumbering gainers nearly three to one. Remember that past performance does not guarantee future results. Live tables are updated during the session on our stock market page.