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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 (10/3/2025, 8:09:35 PM)

After market: 360.74 +0.54 (+0.15%)

360.2

+6.48 (+1.83%)


NETAPP INC

NASDAQ:NTAP (10/3/2025, 8:00:02 PM)

After market: 118.72 0 (0%)

118.72

-1.35 (-1.12%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (10/3/2025, 8:04:10 PM)

After market: 51.75 -0.21 (-0.4%)

51.96

-0.54 (-1.03%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (10/3/2025, 8:22:16 PM)

After market: 164.37 -0.3 (-0.18%)

164.67

-5.06 (-2.98%)


NVIDIA CORP

NASDAQ:NVDA (10/3/2025, 8:00:02 PM)

After market: 187.66 +0.04 (+0.02%)

187.62

-1.27 (-0.67%)


TESLA INC

NASDAQ:TSLA (10/3/2025, 8:08:42 PM)

After market: 430 +0.17 (+0.04%)

429.83

-6.17 (-1.42%)


ARISTA NETWORKS INC

NYSE:ANET (10/3/2025, 8:22:31 PM)

After market: 146 +0.5 (+0.34%)

145.5

+1.04 (+0.72%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (10/3/2025, 8:00:01 PM)

After market: 175.43 +2.36 (+1.36%)

173.07

-13.98 (-7.47%)


VISTRA CORP

NYSE:VST (10/3/2025, 8:11:19 PM)

After market: 201.8 -0.19 (-0.09%)

201.99

-0.66 (-0.33%)



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