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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 (11/26/2025, 8:07:16 PM)

After market: 331.32 +1.61 (+0.49%)

329.71

+3.43 (+1.05%)


NETAPP INC

NASDAQ:NTAP (11/26/2025, 8:00:01 PM)

After market: 108.728 -0.52 (-0.48%)

109.25

-2.23 (-2%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (11/26/2025, 8:03:49 PM)

After market: 32.8 -0.03 (-0.09%)

32.83

+0.35 (+1.08%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (11/26/2025, 8:15:29 PM)

After market: 213.98 -0.26 (-0.12%)

214.24

+8.11 (+3.93%)


NVIDIA CORP

NASDAQ:NVDA (11/26/2025, 8:00:01 PM)

After market: 179.5 -0.76 (-0.42%)

180.26

+2.44 (+1.37%)


TESLA INC

NASDAQ:TSLA (11/26/2025, 8:06:43 PM)

After market: 426.57 -0.01 (0%)

426.58

+7.18 (+1.71%)


ARISTA NETWORKS INC

NYSE:ANET (11/26/2025, 8:15:38 PM)

After market: 128.05 +0.4 (+0.31%)

127.65

+2.61 (+2.09%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (11/26/2025, 8:00:00 PM)

After market: 166.25 +0.48 (+0.29%)

165.77

+2.22 (+1.36%)


VISTRA CORP

NYSE:VST (11/26/2025, 8:08:22 PM)

After market: 176.99 +0.19 (+0.11%)

176.8

+5.96 (+3.49%)



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