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

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 (1/30/2026, 8:04:00 PM)

After market: 306.35 -0.44 (-0.14%)

306.79

+7.93 (+2.65%)


THE CIGNA GROUP

NYSE:CI (1/30/2026, 8:04:00 PM)

After market: 272.5 -1.61 (-0.59%)

274.11

+2.84 (+1.05%)


UNITEDHEALTH GROUP INC

NYSE:UNH (1/30/2026, 8:22:37 PM)

After market: 286.28 -0.65 (-0.23%)

286.93

-5.36 (-1.83%)


EDWARDS LIFESCIENCES CORP

NYSE:EW (1/30/2026, 8:04:00 PM)

After market: 81.25 -0.11 (-0.14%)

81.36

-0.13 (-0.16%)


RESMED INC

NYSE:RMD (1/30/2026, 8:17:10 PM)

After market: 258.31 0 (0%)

258.31

+0.7 (+0.27%)


BOSTON SCIENTIFIC CORP

NYSE:BSX (1/30/2026, 8:04:00 PM)

After market: 93.59 +0.06 (+0.06%)

93.53

+1.2 (+1.3%)


HONEYWELL INTERNATIONAL INC

NASDAQ:HON (1/30/2026, 8:00:02 PM)

After market: 227.52 0 (0%)

227.52

+0.28 (+0.12%)


DEERE & CO

NYSE:DE (1/30/2026, 8:04:00 PM)

After market: 527.01 -0.99 (-0.19%)

528

-2.07 (-0.39%)


TJX COMPANIES INC

NYSE:TJX (1/30/2026, 8:21:20 PM)

After market: 149.81 0 (0%)

149.81

+2.34 (+1.59%)


MCKESSON CORP

NYSE:MCK (1/30/2026, 8:04:00 PM)

After market: 831.93 +0.72 (+0.09%)

831.21

+8.91 (+1.08%)


HOME DEPOT INC

NYSE:HD (1/30/2026, 8:04:00 PM)

After market: 374.59 0 (0%)

374.59

+2.78 (+0.75%)


MCDONALD'S CORP

NYSE:MCD (1/30/2026, 8:04:00 PM)

After market: 314.9 -0.1 (-0.03%)

315

-0.51 (-0.16%)


INTL BUSINESS MACHINES CORP

NYSE:IBM (1/30/2026, 8:04:00 PM)

After market: 306.39 -0.31 (-0.1%)

306.7

-2.54 (-0.82%)


THERMO FISHER SCIENTIFIC INC

NYSE:TMO (1/30/2026, 8:21:31 PM)

After market: 578.99 +0.38 (+0.07%)

578.61

-13.55 (-2.29%)


ALLIANT ENERGY CORP

NASDAQ:LNT (1/30/2026, 8:02:22 PM)

After market: 65.911 0 (0%)

65.91

-0.42 (-0.63%)


HASBRO INC

NASDAQ:HAS (1/30/2026, 8:00:01 PM)

After market: 89.31 0 (0%)

89.31

-1.15 (-1.27%)


HEWLETT PACKARD ENTERPRISE

NYSE:HPE (1/30/2026, 8:04:00 PM)

After market: 21.55 +0.03 (+0.14%)

21.52

-0.49 (-2.23%)



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