Stocks at midday: Pentair (PNR) leads S&P 500 gainers, +12.89% (October 27, 2026)
Major U.S. stock indices were mostly higher by midday on Tuesday, October 27, 2026, led by a +1.31% gain in the Nasdaq to 26,512.57 and a +0.66% rise in the S&P 500 to 7,727.13. Despite the broader index gains, market breadth across S&P 500 constituents remained negative, with 289 declining stocks outnumbering 196 gainers. Because the trading session remains open, all intraday prices and percentage changes are subject to change before the closing bell.
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| PNR | Pentair | 62.34 | +12.89% | +12.73% | $246M |
| DELL | Dell Technologies | 507.00 | +8.54% | +11.08% | $2.0B |
| RCL | Royal Caribbean | 304.21 | +8.42% | +10.03% | $875M |
| WDC | Western Digital | 385.95 | +8.37% | +12.30% | $1.8B |
| BE | Bloom Energy | 220.47 | +8.11% | +14.05% | $2.4B |
| SMCI | Supermicro | 35.12 | +7.43% | +6.62% | $593M |
| LITE | Lumentum | 876.01 | +7.08% | +15.85% | $3.2B |
| NUE | Nucor | 275.49 | +7.05% | +6.73% | $240M |
| CDNS | Cadence Design Systems | 344.37 | +6.89% | +8.81% | $647M |
| COHR | Coherent | 236.36 | +6.71% | +12.93% | $878M |
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| XYL | Xylem | 95.57 | -11.71% | -12.11% | $411M |
| BA | Boeing | 170.30 | -9.56% | -9.58% | $4.2B |
| VLO | Valero Energy | 394.28 | -7.61% | -5.96% | $846M |
| PSX | Phillips 66 | 269.75 | -6.61% | -4.74% | $330M |
| MPC | Marathon Petroleum | 441.91 | -6.10% | -3.35% | $499M |
| UHS | Universal Health Services | 175.00 | -5.77% | -6.36% | $91M |
| WELL | Welltower | 227.53 | -5.44% | -4.13% | $408M |
| CTAS | Cintas | 213.99 | -5.28% | -4.51% | $676M |
| HCA | HCA Healthcare | 441.29 | -5.15% | -5.91% | $678M |
| BRO | Brown & Brown | 67.42 | -5.15% | -7.61% | $170M |
| Market | Last | Change | Week to date |
|---|---|---|---|
| S&P 500 | 7,727.13 | +0.66% | +1.36% |
| Nasdaq | 26,512.57 | +1.31% | +2.15% |
| Dow Jones | 52,379.15 | +0.03% | +0.31% |
| Russell 2000 | 2,816.78 | +1.09% | +1.47% |
| VIX | 17.60 | -4.30% | - |
| 10-year yield (%) | 4.99 | +0.14% | - |
| US Dollar Index | 102.29 | +0.33% | - |
| Gold ($/oz) | 4,072.90 | +0.85% | - |
| WTI crude ($) | 100.13 | -1.60% | - |
| Bitcoin ($) | 80,479.99 | +0.59% | - |
How are major indices and macro assets performing at midday?
U.S. equities are posting moderate gains at midday on Tuesday, driven by tech-heavy benchmarks. The Nasdaq leads with a +1.31% advance, the Russell 2000 has added +1.09%, and the S&P 500 is up +0.66%, while the Dow Jones is roughly flat, adding +0.03%.
The S&P 500 stood at 7,727.13, up +0.66% on the session, bringing its week-to-date gain to +1.36%. The Nasdaq reached 26,512.57 (+1.31%), the Russell 2000 moved to 2,816.78 (+1.09%), and the Dow Jones Industrial Average rose +0.03% to 52,379.15. Across the 503 S&P 500 components tracked, breadth was negative with 196 gainers, 289 decliners, and 18 unchanged.
In macroeconomic markets, the Cboe Volatility Index (VIX) dropped -4.30% to 17.60. The 10-year Treasury yield rose slightly by +0.14% to 4.993%, and the US Dollar Index climbed +0.33% to 102.292. Gold gained +0.85% to reach $4,072.90 per ounce, while WTI crude fell -1.60% to $100.13 per barrel. Bitcoin traded up +0.59% to $80,479.99.
Which S&P 500 stocks are the biggest midday gainers?
Pentair (PNR) and Dell Technologies (DELL) lead the S&P 500 midday advancers, rising +12.89% and +0.854% respectively. Royal Caribbean (RCL) and Western Digital (WDC) followed closely, both advancing more than 8%.
Pentair led all constituents with a +12.89% jump to 62.34 on $245.7M in dollar volume. Dell Technologies followed, advancing +8.54% to 507.00 with $2.0B in dollar volume, while Western Digital gained +8.37% to 385.95 on $1.8B in dollar volume. Specific catalysts behind these intraday moves are not provided in our data, so readers may consult each company's press releases and SEC filings for details.
Other notable gainers included Royal Caribbean (+8.42% to 304.21), Bloom Energy (+8.11% to 220.47 on $2.4B in dollar volume), and Supermicro (+7.43% to 35.12). Lumentum advanced +7.08% to 876.01 with $3.2B in dollar volume, while Nucor (+7.05% to 275.49), Cadence Design Systems (+6.89% to 344.37), and Coherent (+6.71% to 236.36) also posted strong midday gains.
Which stocks are leading the midday declines?
Xylem (XYL) and Boeing (BA) posted the steepest drops among S&P 500 constituents at midday, losing -11.71% and -9.56% respectively. Energy refiners also faced pressure, with Valero Energy falling -7.61%.
Xylem was the index's largest decliner, dropping -11.71% to 95.57 on $410.7M in dollar volume. Boeing fell -9.56% to 170.30, generating $4.2B in dollar volume. As the reasons for these declines are not provided in the data, investors can look to official company statements and regulatory filings for further context.
Refining stocks also trended lower alongside the decline in crude oil prices. Valero Energy lost -7.61% to 394.28, Phillips 66 dropped -6.61% to 269.75, and Marathon Petroleum decreased -6.10% to 441.91. Other laggards included Universal Health Services (-5.77% to 175.00), Welltower (-5.44% to 227.53), Cintas (-5.28% to 213.99), HCA Healthcare (-5.15% to 441.29), and Brown & Brown (-5.15% to 67.42).
Frequently asked questions
Why are stocks like Pentair and Xylem moving significantly today?
Specific catalysts for the moves in Pentair (+12.89%) and Xylem (-11.71%) are not included in our data. Investors can review company press releases and regulatory SEC filings for corporate announcements.
Can these midday stock prices and percentage changes change?
Yes. Because the trading session for Tuesday, October 27, 2026, is still active, all figures are intraday snapshots and may change before the market closes.
How is the broader market performing in terms of breadth?
Despite index-level gains in the S&P 500 and Nasdaq, market breadth is negative at midday, with 289 declining stocks versus 196 advancing stocks across the S&P 500.
Bottom line
At midday, the S&P 500 is up +0.66% and the Nasdaq has advanced +1.31%, even as internal market breadth leans negative. Because the session is ongoing, these intraday levels remain subject to change before the closing bell. Remember that past performance does not guarantee future results. Live tables are updated during the session on our stock market page.