Top S&P500 movers in Wednesday's pre-market session
By Mill Chart
Last update: May 14, 2025
The US market session of Wednesday has yet to be opened, let's have a look at the top S&P500 gainers and losers in the pre-market session today.
Gainers
| Ticker | Change | Comment |
|---|---|---|
| SMCI | 18.15% | Investors witnessed a remarkable surge in SUPER MICRO COMPUTER INC (NASDAQ:SMCI) during Wednesday's pre-market session, with the stock price rising 18.15% to $45.95. Following yesterday's 16.02% increase, SMCI demonstrates further positive momentum in today's pre-market session with a 18.15% gain. |
| AMD | 4.17% | ADVANCED MICRO DEVICES's (NASDAQ:AMD) shares rose 4.17% to $117.15. A press release (AMD and HUMAIN Form Strategic, $10B Collaboration to Advance Global AI) was released yesterday. |
| UNH | 3.4% | UNITEDHEALTH GROUP INC (NYSE:UNH) experienced an impressive 3.4% increase in share price, reaching $321.97 during the pre-market session on Wednesday. Yesterday's -17.79% decline in UNH has given way to a potential bounce-back as observed in today's pre-market session. A press release (UNH BREAKING NEWS: UnitedHealth Group Incorporated Replaces CEO and Suspends Guidance – Contact BFA Law about the Class Action if You Lost Money (NYSE:UNH)) was released yesterday. |
| TSLA | 3.23% | During Wednesday's pre-market trading, TESLA INC (NASDAQ:TSLA) demonstrated strong momentum, with the stock price rising 3.23% to $344.85. The stock is trading 32.38% higher than a month ago. |
| NVDA | 3.18% | NVIDIA CORP (NASDAQ:NVDA) rose 3.18% to $134.06 during Wednesday's pre-market session. The stock is trading 40.5% higher than a year ago. |
| VST | 2.57% | The pre-market session on Wednesday saw a significant rise in VISTRA CORP's (NYSE:VST) shares, climbing 2.57% to $158.98. The stock is trading 37.55% higher than a month ago. |
| NTAP | 2.48% | The pre-market session on Wednesday saw a significant rise in NETAPP INC's (NASDAQ:NTAP) shares, climbing 2.48% to $102.0. |
| PLTR | 2.19% | Investors witnessed a remarkable surge in PALANTIR TECHNOLOGIES INC-A (NASDAQ:PLTR) during Wednesday's pre-market session, with the stock price rising 2.19% to $130.9. The stock is trading 38.31% higher than a month ago. |
| ANET | 2.16% | ARISTA NETWORKS INC's (NYSE:ANET) shares rose 2.16% to $99.35. Shareholders saw the stock price going 32.15% higher in the past month. |
To see the full list of premarket gainers you can use our premarket gainers page.
NYSE:UNH (5/21/2025, 12:59:08 PM)
306.985
-14.59 (-4.54%)
NASDAQ:NTAP (5/21/2025, 12:58:40 PM)
101.905
+0.84 (+0.84%)
NASDAQ:SMCI (5/21/2025, 12:59:07 PM)
43.58
+0.81 (+1.89%)
NASDAQ:AMD (5/21/2025, 12:59:09 PM)
115.35
+1.84 (+1.62%)
NASDAQ:NVDA (5/21/2025, 12:59:10 PM)
136.965
+2.59 (+1.92%)
NASDAQ:TSLA (5/21/2025, 12:59:10 PM)
346.373
+2.55 (+0.74%)
NYSE:ANET (5/21/2025, 12:59:05 PM)
94.94
-0.73 (-0.76%)
NASDAQ:PLTR (5/21/2025, 12:59:07 PM)
126.21
+0.62 (+0.49%)
NYSE:VST (5/21/2025, 12:59:07 PM)
155.17
-1.86 (-1.18%)
Find more stocks in the Stock Screener
UNH Latest News and Analysis
12 hours ago - ChartmillMarket Monitor News May 21 (Amer Sports, Astera Labs UP - Super Micro Computer DOWN)Wall Street Cools Off After Six-Day Rally
a day ago - ChartmillStay informed about the most active stocks in the S&P500 index on Tuesday's session.Looking for the most active S&P500 stocks in today's session? Join us as we dive into the US markets on Tuesday and discover the stocks that are dominating the trading activity and setting the pace for the market.
a day ago - ChartmillWhat's going on in today's pre-market session: S&P500 moversPre-market stock analysis of S&P500 stocks on 2025-05-20: top gainers and losers in today's session.
a day ago - ChartmillMarket Monitor News May 20 (United Health UP - Tesla DOWN)Markets Close Mixed Following Credit Downgrade, AI Moves, and Economic Concerns
2 days ago - ChartmillWhat's going on in today's session: S&P500 moversStay updated with the movements of the S&P500 index one hour before the close of the markets on Monday. Discover which stocks are leading as top gainers and losers in today's session.
2 days ago - ChartmillMonday's session: most active stock in the S&P500 indexCurious about the most active S&P500 stocks in today's session? Get insights into the stocks that are leading the way in terms of trading volume and market attention.
2 days ago - ChartmillUncover the latest developments among S&P500 stocks in today's session.Join us in exploring the top gainers and losers within the S&P500 index in the middle of the day on Monday as we examine the latest happenings in today's session.
5 days ago - ChartmillDiscover which S&P500 stocks are making waves on Friday.Let's delve into the developments on the US markets one hour before the close of the markets on Friday. Below, you'll find the top gainers and losers within the S&P500 index during today's session.
5 days ago - ChartmillExplore the S&P500 index on Friday and find out which stocks are the most active in today's session.Looking for the most active S&P500 stocks in today's session? Join us as we dive into the US markets on Friday and discover the stocks that are dominating the trading activity and setting the pace for the market.
5 days ago - ChartmillLet's take a look at the S&P500 stocks that are experiencing unusual volume in today's session.Let's have a look at the S&P500 stocks with an unusual volume in today's session.
5 days ago - ChartmillThese S&P500 stocks that are showing activity before the opening bell on Friday.The US market is yet to commence its session on Friday, but let's get a preview of the pre-market session and explore the top S&P500 gainers and losers driving the early market movements.
6 days ago - ChartmillMarket Monitor News May 16 ( Foot Locker, Boot Barn UP - United Health, Dick's Sporting Goods DOWN)Wall Street ends mixed as inflation cools, Deere beats expectations, Walmart warns on prices, and oil sinks on Iran deal hopes.
