Top S&P500 movers in Wednesday's pre-market session

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 (1/26/2026, 8:04:00 PM)

Premarket: 320.41 -31.23 (-8.88%)

351.64

-4.62 (-1.3%)


NETAPP INC

NASDAQ:NTAP (1/26/2026, 8:08:19 PM)

After market: 98.81 0 (0%)

98.81

+1.39 (+1.43%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (1/26/2026, 8:24:03 PM)

Premarket: 31.09 +0.29 (+0.94%)

30.8

-0.9 (-2.84%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (1/26/2026, 8:00:00 PM)

Premarket: 254.24 +2.93 (+1.17%)

251.31

-8.37 (-3.22%)


NVIDIA CORP

NASDAQ:NVDA (1/26/2026, 8:08:32 PM)

Premarket: 187.65 +1.18 (+0.63%)

186.47

-1.2 (-0.64%)


TESLA INC

NASDAQ:TSLA (1/26/2026, 8:00:02 PM)

Premarket: 437.99 +2.79 (+0.64%)

435.2

-13.86 (-3.09%)


ARISTA NETWORKS INC

NYSE:ANET (1/26/2026, 10:19:56 PM)

Premarket: 145.48 +1.76 (+1.22%)

143.72

+7.38 (+5.41%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (1/26/2026, 8:14:36 PM)

Premarket: 168.41 +0.94 (+0.56%)

167.47

-2.13 (-1.26%)


VISTRA CORP

NYSE:VST (1/26/2026, 8:04:00 PM)

Premarket: 160.51 +1.7 (+1.07%)

158.81

-1.31 (-0.82%)



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