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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 (12/17/2025, 8:04:00 PM)

After market: 184.22 0 (0%)

184.22

+1.69 (+0.93%)


MERCK & CO. INC.

NYSE:MRK (12/17/2025, 8:04:00 PM)

After market: 99.1587 -0.02 (-0.02%)

99.18

+0.91 (+0.93%)


CENTENE CORP

NYSE:CNC (12/17/2025, 8:10:04 PM)

After market: 39 +0.13 (+0.33%)

38.87

-0.1 (-0.26%)


THE CIGNA GROUP

NYSE:CI (12/17/2025, 8:06:56 PM)

After market: 273.84 0 (0%)

273.84

-2.27 (-0.82%)


HUMANA INC

NYSE:HUM (12/17/2025, 8:04:00 PM)

After market: 261.5 +1.22 (+0.47%)

260.28

+2.12 (+0.82%)


MOLINA HEALTHCARE INC

NYSE:MOH (12/17/2025, 8:04:00 PM)

After market: 162.3 0 (0%)

162.3

+1.42 (+0.88%)


UNITEDHEALTH GROUP INC

NYSE:UNH (12/17/2025, 8:04:00 PM)

After market: 330.2 -1.43 (-0.43%)

331.63

-2.57 (-0.77%)


CVS HEALTH CORP

NYSE:CVS (12/17/2025, 8:11:35 PM)

After market: 77.6636 -0.22 (-0.28%)

77.88

-0.41 (-0.52%)


BUILDERS FIRSTSOURCE INC

NYSE:BLDR (12/17/2025, 8:04:00 PM)

After market: 103.28 -0.23 (-0.22%)

103.51

+0.33 (+0.32%)


WESTERN DIGITAL CORP

NASDAQ:WDC (12/17/2025, 8:00:02 PM)

After market: 170.8 +4.54 (+2.73%)

166.26

-8.31 (-4.76%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (12/17/2025, 8:00:02 PM)

After market: 29.9703 +0.13 (+0.44%)

29.84

-1.82 (-5.75%)


FIRST SOLAR INC

NASDAQ:FSLR (12/17/2025, 8:00:00 PM)

After market: 254.03 0 (0%)

254.03

-4.48 (-1.73%)


NVIDIA CORP

NASDAQ:NVDA (12/17/2025, 8:00:02 PM)

After market: 171.44 +0.5 (+0.29%)

170.94

-6.78 (-3.81%)


AES CORP

NYSE:AES (12/17/2025, 8:04:00 PM)

After market: 13.45 -0.03 (-0.22%)

13.48

-0.14 (-1.03%)


ENPHASE ENERGY INC

NASDAQ:ENPH (12/17/2025, 8:17:49 PM)

After market: 31.95 +0.34 (+1.08%)

31.61

-0.25 (-0.78%)


PHILLIPS 66

NYSE:PSX (12/17/2025, 8:04:00 PM)

After market: 131.99 0 (0%)

131.99

+0.21 (+0.16%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (12/17/2025, 8:00:00 PM)

After market: 178.47 +1.18 (+0.67%)

177.29

-10.46 (-5.57%)


VISTRA CORP

NYSE:VST (12/17/2025, 8:04:00 PM)

After market: 163.28 +3.31 (+2.07%)

159.97

-13.48 (-7.77%)


ELEVANCE HEALTH INC

NYSE:ELV (12/17/2025, 8:17:34 PM)

After market: 345.97 0.01 (0%)

345.96

-5.94 (-1.69%)


GE VERNOVA INC

NYSE:GEV (12/17/2025, 10:05:50 PM)

After market: 619.5 +5.31 (+0.86%)

614.19

-72.03 (-10.5%)



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