News Image

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

TickerChangeComment
SMCI18.15%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.
AMD4.17%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.
UNH3.4%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.
TSLA3.23%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.
NVDA3.18%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.
VST2.57%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.
NTAP2.48%The pre-market session on Wednesday saw a significant rise in NETAPP INC's (NASDAQ:NTAP) shares, climbing 2.48% to $102.0.
PLTR2.19%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.
ANET2.16%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.

UNITEDHEALTH GROUP INC

NYSE:UNH (7/22/2025, 8:04:00 PM)

After market: 285.13 0 (0%)

285.13

+2.99 (+1.06%)


NETAPP INC

NASDAQ:NTAP (7/22/2025, 8:00:01 PM)

After market: 104.93 -0.02 (-0.02%)

104.95

-2.51 (-2.34%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (7/22/2025, 8:00:02 PM)

After market: 50.05 +0.19 (+0.38%)

49.86

-1.64 (-3.18%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (7/22/2025, 9:09:15 PM)

After market: 155.01 +0.29 (+0.19%)

154.72

-2.28 (-1.45%)


NVIDIA CORP

NASDAQ:NVDA (7/22/2025, 8:00:01 PM)

After market: 167.77 +0.74 (+0.44%)

167.03

-4.35 (-2.54%)


TESLA INC

NASDAQ:TSLA (7/22/2025, 8:00:01 PM)

After market: 333.3 +1.19 (+0.36%)

332.11

+3.62 (+1.1%)


ARISTA NETWORKS INC

NYSE:ANET (7/22/2025, 8:04:00 PM)

After market: 110 +0.22 (+0.2%)

109.78

-1.83 (-1.64%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (7/22/2025, 8:42:18 PM)

After market: 149.501 +0.43 (+0.29%)

149.07

-2.72 (-1.79%)


VISTRA CORP

NYSE:VST (7/22/2025, 8:04:00 PM)

After market: 198 +8.91 (+4.71%)

189.09

+0.86 (+0.46%)



Find more stocks in the Stock Screener

UNH Latest News and Analysis

Follow ChartMill for more