Stocks at midday: Vertiv (VRT) leads S&P 500 gainers, +13.97% (October 28, 2026)
Major U.S. stock indices were mixed at midday on Wednesday, October 28, 2026, with the S&P 500 up +0.21% and the Dow adding +0.27%, while the Nasdaq slipped -0.03%. Market breadth was balanced, with 234 gainers and 247 decliners across the benchmark index as trading progressed. Vertiv led midday gainers with a +13.97% surge, while F5 led decliners, sliding -19.70%.
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| VRT | Vertiv | 237.70 | +13.97% | +22.32% | $2.7B |
| LH | Labcorp | 365.18 | +10.27% | +11.01% | $266M |
| FLEX | Flex | 91.54 | +9.83% | +19.58% | $619M |
| GEHC | GE HealthCare | 76.47 | +7.54% | +7.03% | $329M |
| SNDK | Sandisk | 1,379.49 | +5.72% | +11.43% | $6.8B |
| PPG | PPG Industries | 119.89 | +5.69% | +8.39% | $268M |
| LRCX | Lam Research | 254.27 | +5.57% | +10.50% | $1.1B |
| FTV | Fortive | 64.88 | +5.28% | +7.68% | $162M |
| AON | Aon | 316.88 | +4.75% | +4.40% | $311M |
| MU | Micron Technology | 972.32 | +4.69% | +10.80% | $13.0B |
| Ticker | Company | Price ($) | Change | Week to date | Dollar volume |
|---|---|---|---|---|---|
| FFIV | F5 | 368.86 | -19.70% | -19.01% | $653M |
| CSGP | CoStar | 27.63 | -13.68% | -18.54% | $225M |
| CHRW | C.H. Robinson | 129.54 | -9.78% | -8.24% | $195M |
| LII | Lennox International | 338.84 | -8.93% | -9.89% | $389M |
| SW | Smurfit Westrock | 39.57 | -6.98% | -5.45% | $190M |
| GRMN | Garmin | 269.64 | -6.81% | -8.21% | $219M |
| BSX | Boston Scientific | 42.42 | -5.86% | -7.16% | $1.4B |
| ODFL | Old Dominion | 176.40 | -5.69% | -3.45% | $412M |
| BKR | Baker Hughes | 55.98 | -5.12% | +0.21% | $421M |
| ON | ON Semiconductor | 74.73 | -5.01% | +3.43% | $305M |
| Market | Last | Change | Week to date |
|---|---|---|---|
| S&P 500 | 7,738.45 | +0.21% | +1.51% |
| Nasdaq | 26,471.06 | -0.03% | +1.99% |
| Dow Jones | 52,516.53 | +0.27% | +0.58% |
| Russell 2000 | 2,819.57 | +0.02% | +1.57% |
| VIX | 17.31 | -1.20% | - |
| 10-year yield (%) | 5.04 | +0.94% | - |
| US Dollar Index | 102.27 | -0.05% | - |
| Gold ($/oz) | 4,053.10 | -0.53% | - |
| WTI crude ($) | 103.39 | +3.49% | - |
| Bitcoin ($) | 80,414.66 | -0.48% | - |
How are major indices and macro indicators performing at midday?
U.S. equities showed modest, mixed movements by midday on Wednesday. The S&P 500 rose +0.21% to 7,738.45, the Dow Jones climbed +0.27% to 52,516.53, and the Russell 2000 was nearly flat at +0.02% to 2,819.57. The Nasdaq dipped -0.03% to 26,471.06.
Across the broader market, breadth remained slightly tilted to the downside, counting 234 advancing stocks, 247 declining stocks, and 22 unchanged. Because the Wednesday session is currently active, all quoted figures are intraday and subject to change before the closing bell.
In macro assets, the 10-year Treasury yield rose +0.94% to 5.04%, while the Cboe Volatility Index (VIX) fell -1.20% to 17.31. Commodity prices were divergent: WTI crude oil gained +3.49% to trade at $103.39 per barrel, while Gold fell -0.53% to $4,053.10 per ounce. The US Dollar Index edged down -0.05% to 102.272, and Bitcoin retreated -0.48% to $80,414.66.
Which stocks are leading the midday gainers?
Vertiv topped the midday gainers list with a +13.97% surge to 237.70 on $2.7B in volume. Labcorp also saw strong upward movement, advancing +10.27% to 365.18, followed closely by Flex, which gained +9.83% to reach 91.54.
Several healthcare and technology names also registered solid intraday gains. GE HealthCare advanced +7.54% to 76.47 on $328.5M in volume, Sandisk climbed +5.72% to 1,379.49 on $6.8B in volume, and PPG Industries rose +5.69% to 119.89.
Other notable midday performers included Lam Research, rising +5.57% to 254.27, and Fortive, adding +5.28% to 64.88. High-volume semiconductor stock Micron Technology gained +4.69% to 972.32, generating $13.0B in dollar volume. The exact corporate drivers behind these price increases are not provided in our data; investors can consult corporate press releases and SEC filings for detailed updates.
Which stocks are declining the most in midday trading?
F5 posted the steepest midday decline, dropping -19.70% to 368.86 on $652.9M in dollar volume. CoStar fell -13.68% to 27.63, while freight provider C.H. Robinson fell -0.9.78% to 129.54.
Lennox International also experienced significant downward pressure, declining -8.93% to trade at 338.84. Smurfit Westrock shed -6.98% to 39.57, and Garmin lost -6.81% to 269.64.
Further decliners included Boston Scientific, falling -5.86% to 42.42 on $1.4B in dollar volume, Old Dominion dropping -5.69% to 176.40, Baker Hughes declining -5.12% to 55.98, and ON Semiconductor moving -5.01% lower to 74.73. Specific catalysts for these downward moves are not detailed in the available dataset.
Frequently asked questions
What are the top three midday gainers in the S&P 500?
Vertiv led the index with a +13.97% advance to 237.70, followed by Labcorp up +10.27% to 365.18, and Flex rising +9.83% to 91.54.
What are the top three midday losers in the S&P 500?
F5 posted the largest decrease, down -19.70% to 368.86, followed by CoStar down -13.68% to 27.63, and C.H. Robinson down -9.78% to 129.54.
Can these midday stock prices change before the market closes?
Yes, because the Wednesday session is still underway, all prices, trading volumes, and percentage changes reflect intraday snapshot data and will fluctuate until the final closing print.
Bottom line
Trading activity on Wednesday, October 28, 2026, showed mixed results across the major benchmarks as the S&P 500 hovered near 7,738.45 while the session remained active. Market participants continue to track ongoing price discovery across equities, fixed income, and commodities. Note that past performance does not guarantee future results. Live tables are updated during the session on our stock market page.