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What's going on in today's pre-market session: S&P500 movers

By Mill Chart

Last update: May 20, 2025

Pre-market stock analysis of S&P500 stocks on 2025-05-20: top gainers and losers in today's session.

Gainers

TickerChangeComment
LNT4.52%During Tuesday's pre-market session, ALLIANT ENERGY CORP (NASDAQ:LNT) experienced a 4.52% increase, with the stock price reaching $65.94. The stock is trading 26.31% higher than a year ago.
TMO3.77%THERMO FISHER SCIENTIFIC INC's (NYSE:TMO) shares rose 3.77% to $429.52 during Tuesday's pre-market session. In the last 3 months the stock lost 22.28%.
HPE3.38%HEWLETT PACKARD ENTERPRISE's (NYSE:HPE) stock price increased by 3.38% to $18.05. A press release (Hewlett Packard Enterprise Deepens Integration with NVIDIA on AI Factory Portfolio) was released yesterday.
UNH2.69%During Tuesday's pre-market session, UNITEDHEALTH GROUP INC (NYSE:UNH) exhibited strong growth, with the stock price climbing 2.69% to $324.39. Yesterday the company had a press release: UNITEDHEALTH GROUP INCORPORATED (NYSE: UNH) SHAREHOLDER ALERT Bernstein Liebhard LLP Reminds UnitedHealth Group Incorporated Investors of Upcoming Deadline.
EW2.51%EDWARDS LIFESCIENCES CORP's (NYSE:EW) shares rose 2.51% to $80.0.
HD2.4%HOME DEPOT INC (NYSE:HD) rose 2.4% to $388.5 during Tuesday's pre-market session. yesterday the company released their earnings.
CI2.17%Pre-market trading on Tuesday showed positive momentum for THE CIGNA GROUP (NYSE:CI), as the stock price advanced 2.17% to reach $328.95.

For the full premarket gainers list go to our premarket gainers page.

Today's pre-market losers

TickerChangeComment
DE-5.96%DEERE & CO's (NYSE:DE) shares fell 5.96% to $498.25. The stock is trading 41.3% higher than a year ago.
GE-5.73%GENERAL ELECTRIC's (NYSE:GE) shares fell 5.73% to $221.81 during Tuesday's pre-market session. The stock is trading 31.93% higher than a month ago.
MCK-5.23%Investors observed a 5.23% decline in MCKESSON CORP's (NYSE:MCK) stock price, which now stands at $688.4 during Tuesday's pre-market session. In the last 3 months the stock gained 21.53%.
RMD-4.09%RESMED INC's (NYSE:RMD) shares fell 4.09% to $243.0. In the last month the share price increased with 20.15%.
IBM-3.81%The stock price of INTL BUSINESS MACHINES CORP (NYSE:IBM) is declining by 3.81%, reaching $258.19 during Tuesday's pre-market session. Shareholders saw the stock price going 20.38% higher is the past 6 months.
MCD-3.55%MCDONALD'S CORP's (NYSE:MCD) stock price decreased by 3.55% to $309.83. In the last year the stock gained 24.45%.
BSX-3.29%BOSTON SCIENTIFIC CORP's (NYSE:BSX) shares experienced a 3.29% decline, falling to $103.15 during Tuesday's pre-market session. Shareholders saw the stock price going 41.03% higher is the past year.
TJX-3.22%During Tuesday's pre-market session, the shares of TJX COMPANIES INC (NYSE:TJX) declined by 3.22%, reaching $130.68. TJX is releasing earnings today. In the last year the stock gained 32.2%.
HAS-3.04%HASBRO INC's (NASDAQ:HAS) shares fell 3.04% to $66.11 during Tuesday's pre-market session. Shareholders saw the stock price going 32.29% higher in the past month.
HON-2.86%The stock price of HONEYWELL INTERNATIONAL INC (NASDAQ:HON) is experiencing a decline of 2.86%, reaching $218.51 in today's pre-market session on Tuesday.

To see the full list of premarket losers you can use our premarket losers page.

GENERAL ELECTRIC

NYSE:GE (1/5/2026, 8:04:00 PM)

After market: 324.59 +0.27 (+0.08%)

324.32

+3.57 (+1.11%)


THE CIGNA GROUP

NYSE:CI (1/5/2026, 8:17:32 PM)

After market: 282.547 -1.42 (-0.5%)

283.97

+4.85 (+1.74%)


UNITEDHEALTH GROUP INC

NYSE:UNH (1/5/2026, 8:04:00 PM)

After market: 341.94 -0.08 (-0.02%)

342.02

+5.62 (+1.67%)


EDWARDS LIFESCIENCES CORP

NYSE:EW (1/5/2026, 8:04:00 PM)

After market: 84.17 0 (0%)

84.17

-1.16 (-1.36%)


RESMED INC

NYSE:RMD (1/5/2026, 8:04:00 PM)

After market: 245.36 0 (0%)

245.36

+0.55 (+0.22%)


BOSTON SCIENTIFIC CORP

NYSE:BSX (1/5/2026, 8:12:01 PM)

After market: 95.48 0 (0%)

95.48

+0.77 (+0.81%)


HONEYWELL INTERNATIONAL INC

NASDAQ:HON (1/5/2026, 8:00:02 PM)

After market: 200 -1.09 (-0.54%)

201.09

+5.21 (+2.66%)


DEERE & CO

NYSE:DE (1/5/2026, 8:24:49 PM)

After market: 465.31 -0.79 (-0.17%)

466.1

-0.7 (-0.15%)


TJX COMPANIES INC

NYSE:TJX (1/5/2026, 8:04:00 PM)

After market: 153.69 -0.15 (-0.1%)

153.84

-0.44 (-0.29%)


MCKESSON CORP

NYSE:MCK (1/5/2026, 10:32:40 PM)

After market: 824.92 0 (0%)

824.92

+1.48 (+0.18%)


HOME DEPOT INC

NYSE:HD (1/5/2026, 8:04:00 PM)

After market: 344.06 -0.03 (-0.01%)

344.09

-1.73 (-0.5%)


MCDONALD'S CORP

NYSE:MCD (1/5/2026, 8:04:00 PM)

After market: 299.998 +0.14 (+0.05%)

299.86

-3.4 (-1.12%)


INTL BUSINESS MACHINES CORP

NYSE:IBM (1/5/2026, 8:04:00 PM)

After market: 295 +0.03 (+0.01%)

294.97

+3.47 (+1.19%)


THERMO FISHER SCIENTIFIC INC

NYSE:TMO (1/5/2026, 8:04:00 PM)

After market: 610 -1.2 (-0.2%)

611.2

+18.69 (+3.15%)


ALLIANT ENERGY CORP

NASDAQ:LNT (1/5/2026, 8:00:00 PM)

After market: 64.9 0 (0%)

64.9

-0.69 (-1.05%)


HASBRO INC

NASDAQ:HAS (1/5/2026, 8:00:02 PM)

After market: 85.58 0 (0%)

85.58

+2.61 (+3.15%)


HEWLETT PACKARD ENTERPRISE

NYSE:HPE (1/5/2026, 8:04:00 PM)

After market: 24.1 -0.03 (-0.12%)

24.13

-0.04 (-0.17%)



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