Stay informed with the top movers within the S&P500 index on Tuesday.

By Mill Chart - Last update: May 13, 2025

Let's delve into the developments on the US markets in the middle of the day on Tuesday. Below, you'll find the top gainers and losers within the S&P500 index during today's session.

Today's top gainers

TickerChangeComment
FSLR18.74%FIRST SOLAR INC's (NASDAQ:FSLR) stock price is advancing with 18.74% to a price of $185.49. The stock is trading 24.05% higher than a month ago.
SMCI14.23%SUPER MICRO COMPUTER INC's (NASDAQ:SMCI) shares soared 14.23% to $38.29 during Tuesday's session. The stock is trading 30.04% lower than 3 months ago.
PLTR7.8%PALANTIR TECHNOLOGIES INC-A's (NASDAQ:PLTR) stock price is advancing with 7.8% to a price of $127.7. The stock is trading 33.78% higher than a month ago.
VST6.23%VISTRA CORP (NYSE:VST) experienced a significant 6.23% increase, reaching $155.19 during Tuesday's session. Shareholders saw the stock price going 30.78% higher in the past month.
GEV5.97%Investors celebrated as GE VERNOVA INC (NYSE:GEV) experienced a 5.97% rise in its shares, closing at $441.51 during Tuesday's session. In the last month the share price increased with 29.62%.
BLDR5.85%Positive market sentiment drove BUILDERS FIRSTSOURCE INC's (NYSE:BLDR) stock price up by 5.85% to $124.89 during Tuesday's session. The stock is trading 23.33% lower than 3 months ago.
NVDA5.63%NVIDIA CORP (NASDAQ:NVDA) experienced a significant 5.63% increase, reaching $129.93 during Tuesday's session. The stock is trading 33.0% higher than a year ago.
AES5.05%AES CORP (NYSE:AES) witnessed a notable 5.05% uptick in its shares, reaching $12.47 during Tuesday's session. Shareholders saw the stock price going 44.22% lower is the past year.
PSX5.0%In an impressive move, PHILLIPS 66's (NYSE:PSX) shares recorded a 5.0% increase, closing at $124.61 during Tuesday's session. A press release (Phillips 66 Issues Statement Following Glass Lewis and ISS Reports) was released earlier today.
WDC4.94%WESTERN DIGITAL CORP's (NASDAQ:WDC) stock price displayed strong growth, advancing 4.94% and reaching $48.87 during Tuesday's session. A press release (Western Digital Authorizes New $2.0 Billion Share Repurchase Program) was released earlier today.

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

Losers

TickerChangeComment
UNH-15.64%UNITEDHEALTH GROUP INC's (NYSE:UNH) stock price faced a 15.64% decline, reaching $319.5 during Tuesday's session. Earlier today the company had a press release: INVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in UnitedHealth Group Incorporated of Class Action Lawsuit and Upcoming Deadlines - UNH.
ENPH-7.3%ENPHASE ENERGY INC's (NASDAQ:ENPH) shares fell 7.3% to $44.44. In the last 3 months the stock lost 25.02%.
ELV-6.76%There was a downturn in ELEVANCE HEALTH INC's (NYSE:ELV) shares, as they experienced a 6.76% decline, closing at $388.51 during Tuesday's session. In the last year the stock lost 23.92%.
HUM-6.64%Investors witnessed a 6.64% drop in HUMANA INC's (NYSE:HUM) stock price, which closed at $236.06 during Tuesday's session. The stock is trading 29.01% lower than a year ago.
CNC-4.76%The market experienced a downward movement in CENTENE CORP's (NYSE:CNC) stock price, closing at $59.88 with a 4.76% decrease during Tuesday's session.
CVS-4.57%CVS HEALTH CORP's (NYSE:CVS) stock price decreased by 4.57% to $61.85. In the last 6 months the stock gained 21.85%.
SPG-4.27%SIMON PROPERTY GROUP INC's (NYSE:SPG) stock price decreased by 4.27% to $164.13.
MRK-3.73%During Tuesday's session, MERCK & CO. INC.'s (NYSE:MRK) shares took a tumble, falling 3.73% to $77.43. Earlier today the company had a press release: Research on Novel Treatment Approaches and Scientific Advances From Merck’s Broad and Differentiated Oncology Portfolio and Pipeline to be Presented at ASCO 2025.
MOH-3.6%MOLINA HEALTHCARE INC's (NYSE:MOH) shares fell 3.6% to $315.89 during Tuesday's session. In the last 3 months the stock gained 20.35%.
CI-3.52%Investors witnessed a 3.52% decrease in THE CIGNA GROUP's (NYSE:CI) stock price, which closed at $304.63 during Tuesday's session.

Our top losers page will show you the full list.

SIMON PROPERTY GROUP INC

NYSE:SPG (2/20/2026, 8:05:44 PM)

After market: 201.7 0 (0%)

201.7

+1.98 (+0.99%)


MERCK & CO. INC.

NYSE:MRK (2/20/2026, 8:04:00 PM)

After market: 122.26 0 (0%)

122.26

+0.4 (+0.33%)


CENTENE CORP

NYSE:CNC (2/20/2026, 8:25:15 PM)

After market: 43.24 0 (0%)

43.24

-0.44 (-1.01%)


THE CIGNA GROUP

NYSE:CI (2/20/2026, 8:23:18 PM)

After market: 280.31 0 (0%)

280.31

-5.61 (-1.96%)


HUMANA INC

NYSE:HUM (2/20/2026, 8:04:00 PM)

After market: 189.9 +0.07 (+0.04%)

189.83

-0.67 (-0.35%)


MOLINA HEALTHCARE INC

NYSE:MOH (2/20/2026, 8:04:00 PM)

After market: 150.5 -0.5 (-0.33%)

151

+2.76 (+1.86%)


UNITEDHEALTH GROUP INC

NYSE:UNH (2/20/2026, 8:08:48 PM)

After market: 288.746 -1.25 (-0.43%)

290

+0.07 (+0.02%)


CVS HEALTH CORP

NYSE:CVS (2/20/2026, 8:26:13 PM)

After market: 76.8831 +0.19 (+0.25%)

76.69

-0.63 (-0.81%)


BUILDERS FIRSTSOURCE INC

NYSE:BLDR (2/20/2026, 8:18:59 PM)

After market: 110.55 0 (0%)

110.55

-0.87 (-0.78%)


WESTERN DIGITAL CORP

NASDAQ:WDC (2/20/2026, 8:10:21 PM)

After market: 284.75 -0.77 (-0.27%)

285.52

+0.85 (+0.3%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (2/20/2026, 10:06:41 PM)

After market: 32.28 -0.14 (-0.43%)

32.42

+0.26 (+0.81%)


FIRST SOLAR INC

NASDAQ:FSLR (2/20/2026, 8:00:01 PM)

After market: 241.74 -0.14 (-0.06%)

241.88

+8.58 (+3.68%)


NVIDIA CORP

NASDAQ:NVDA (2/20/2026, 8:00:01 PM)

After market: 189.999 +0.18 (+0.09%)

189.82

+1.92 (+1.02%)


AES CORP

NYSE:AES (2/20/2026, 8:16:03 PM)

After market: 16.35 -0.16 (-0.97%)

16.51

+0.15 (+0.92%)


ENPHASE ENERGY INC

NASDAQ:ENPH (2/20/2026, 8:00:01 PM)

After market: 46.3807 -0.18 (-0.39%)

46.56

+2.31 (+5.22%)


PHILLIPS 66

NYSE:PSX (2/20/2026, 8:04:00 PM)

After market: 156 +0.25 (+0.16%)

155.75

+0.34 (+0.22%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (2/20/2026, 8:00:01 PM)

After market: 134.55 -0.69 (-0.51%)

135.24

+0.35 (+0.26%)


VISTRA CORP

NYSE:VST (2/20/2026, 8:09:54 PM)

After market: 171.807 +0.41 (+0.24%)

171.4

-1.1 (-0.64%)


ELEVANCE HEALTH INC

NYSE:ELV (2/20/2026, 8:04:00 PM)

After market: 342.93 0 (0%)

342.93

-5.25 (-1.51%)


GE VERNOVA INC

NYSE:GEV (2/20/2026, 9:39:19 PM)

After market: 829.85 -0.49 (-0.06%)

830.34

-4.27 (-0.51%)



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