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

By Mill Chart

Last update: May 19, 2025

Stay updated with the movements of the S&P500 index one hour before the close of the markets on Monday. Discover which stocks are leading as top gainers and losers in today's session.

Today's top gainers

TickerChangeComment
UNH6.92%Investors celebrated as UNITEDHEALTH GROUP INC (NYSE:UNH) experienced a 6.92% rise in its shares, closing at $312.11 during Monday's session. A press release (UNITEDHEALTH GROUP INCORPORATED (NYSE: UNH) SHAREHOLDER ALERT Bernstein Liebhard LLP Reminds UnitedHealth Group Incorporated Investors of Upcoming Deadline) was released yesterday.
MRNA6.11%MODERNA INC's (NASDAQ:MRNA) stock price displayed strong growth, advancing 6.11% and reaching $26.38 during Monday's session. In the last 3 months the share price dropped with 24.64%.
DG4.63%DOLLAR GENERAL CORP's (NYSE:DG) shares rose 4.63% to $97.88 during Monday's session. In the last 3 months the share price increased with 28.93%.
GEV3.96%GE VERNOVA INC's (NYSE:GEV) stock price increased by 3.96% to $445.0. Shareholders saw the stock price going 32.3% higher in the past month.
HUM3.58%Exciting news for HUMANA INC (NYSE:HUM) as its stock price surged 3.58% to $246.49 during Monday's session. Shareholders saw the stock price going 33.19% lower is the past year.
TTWO3.05%Investors celebrated as TAKE-TWO INTERACTIVE SOFTWRE (NASDAQ:TTWO) experienced a 3.05% rise in its shares, closing at $233.65 during Monday's session. In the last 6 months the stock gained 27.65%.
GILD2.79%GILEAD SCIENCES INC (NASDAQ:GILD) experienced a significant 2.79% increase, reaching $105.36 during Monday's session. The stock is trading 51.36% higher than a year ago.
NI2.26%Investors celebrated as NISOURCE INC (NYSE:NI) experienced a 2.26% rise in its shares, closing at $39.97 during Monday's session. In the last year the share price increased with 33.7%.
BIIB2.25%BIOGEN INC's (NASDAQ:BIIB) shares rose 2.25% to $128.42 during Monday's session. In the last 6 months the share price dropped with 21.5%.
AZO2.17%AUTOZONE INC's (NYSE:AZO) shares rose 2.17% to $3.87K during Monday's session. Shareholders saw the stock price going 21.85% higher is the past 6 months.

To see the full list of top gainers you can use our top gainers page.

Losers

TickerChangeComment
FSLR-9.57%During Monday's session, FIRST SOLAR INC's (NASDAQ:FSLR) shares took a tumble, falling 9.57% to $161.38. In the last month the share price increased with 39.44%.
ENPH-4.5%Investors witnessed a 4.5% drop in ENPHASE ENERGY INC's (NASDAQ:ENPH) stock price, which closed at $48.13 during Monday's session. In the last 3 months the share price dropped with 21.18%.
AES-4.34%AES CORP's (NYSE:AES) shares fell 4.34% to $11.68 during Monday's session. In the last 3 months the share price increased with 22.96%.
CZR-4.12%CAESARS ENTERTAINMENT INC's (NASDAQ:CZR) stock price is declining with 4.12% to a price of $29.43. Shareholders saw the stock price going 20.34% higher in the past month.
BBY-3.52%Investors witnessed a 3.52% drop in BEST BUY CO INC's (NYSE:BBY) stock price, which closed at $71.2 during Monday's session. BBY is releasing earnings today. In the last 6 months the stock lost 20.35%.
ON-2.92%ON SEMICONDUCTOR's (NASDAQ:ON) stock price is declining with 2.92% to a price of $43.61. In the last month the stock gained 29.68%.
BLDR-2.87%There was a notable decline in BUILDERS FIRSTSOURCE INC's (NYSE:BLDR) shares, as they dropped 2.87% to $117.18 during Monday's session. In the last 3 months the stock lost 21.61%.
TSLA-2.75%The market experienced a 2.75% downturn in TESLA INC's (NASDAQ:TSLA) stock price, closing at $340.36 during Monday's session. The stock is trading 45.0% higher than a month ago.
MPWR-2.71%The market experienced a downward movement in MONOLITHIC POWER SYSTEMS INC's (NASDAQ:MPWR) stock price, closing at $696.0 with a 2.71% decrease during Monday's session. In the last month the stock gained 36.64%.
PSX-2.64%The market experienced a downward movement in PHILLIPS 66's (NYSE:PSX) stock price, closing at $121.24 with a 2.64% decrease during Monday's session. In the last month the stock gained 26.87%.

For the full top loser list go to our top losers page.

BIOGEN INC

NASDAQ:BIIB (7/21/2025, 8:00:01 PM)

After market: 121.613 -1.07 (-0.87%)

122.68

-2.31 (-1.85%)


GILEAD SCIENCES INC

NASDAQ:GILD (7/21/2025, 8:03:45 PM)

After market: 108.31 +0.03 (+0.03%)

108.28

+0.06 (+0.06%)


HUMANA INC

NYSE:HUM (7/21/2025, 8:06:38 PM)

After market: 223.43 0 (0%)

223.43

+3.02 (+1.37%)


UNITEDHEALTH GROUP INC

NYSE:UNH (7/21/2025, 8:04:00 PM)

After market: 282.46 +0.32 (+0.11%)

282.14

-0.51 (-0.18%)


AUTOZONE INC

NYSE:AZO (7/21/2025, 8:04:00 PM)

After market: 3729.7 0 (0%)

3729.7

+15.77 (+0.42%)


BEST BUY CO INC

NYSE:BBY (7/21/2025, 8:04:00 PM)

After market: 66.3 +0.11 (+0.17%)

66.19

-1.36 (-2.01%)


BUILDERS FIRSTSOURCE INC

NYSE:BLDR (7/21/2025, 8:04:01 PM)

After market: 122.14 +0.24 (+0.2%)

121.9

-1.25 (-1.02%)


TAKE-TWO INTERACTIVE SOFTWRE

NASDAQ:TTWO (7/21/2025, 8:00:01 PM)

After market: 231.63 0 (0%)

231.63

+0.45 (+0.19%)


FIRST SOLAR INC

NASDAQ:FSLR (7/21/2025, 8:01:43 PM)

After market: 178.495 +0.16 (+0.09%)

178.33

+2.48 (+1.41%)


MONOLITHIC POWER SYSTEMS INC

NASDAQ:MPWR (7/21/2025, 9:44:18 PM)

After market: 724.77 0 (0%)

724.77

-0.47 (-0.06%)


NISOURCE INC

NYSE:NI (7/21/2025, 8:24:58 PM)

After market: 41.8 +0.08 (+0.19%)

41.72

+0.82 (+2%)


AES CORP

NYSE:AES (7/21/2025, 8:04:00 PM)

After market: 13.6839 -0.01 (-0.04%)

13.69

+0.32 (+2.39%)


DOLLAR GENERAL CORP

NYSE:DG (7/21/2025, 8:04:00 PM)

After market: 107.59 -0.01 (-0.01%)

107.6

-2.49 (-2.26%)


TESLA INC

NASDAQ:TSLA (7/21/2025, 8:00:01 PM)

After market: 327.77 -0.72 (-0.22%)

328.49

-1.16 (-0.35%)


CAESARS ENTERTAINMENT INC

NASDAQ:CZR (7/21/2025, 8:00:01 PM)

After market: 30.24 +0.43 (+1.44%)

29.81

-0.12 (-0.4%)


ENPHASE ENERGY INC

NASDAQ:ENPH (7/21/2025, 8:00:01 PM)

After market: 39.8783 +0.22 (+0.55%)

39.66

+0.08 (+0.2%)


PHILLIPS 66

NYSE:PSX (7/21/2025, 8:04:00 PM)

After market: 126.3 +0.25 (+0.2%)

126.05

+0.15 (+0.12%)


ON SEMICONDUCTOR

NASDAQ:ON (7/21/2025, 8:00:02 PM)

After market: 58.7497 -1.8 (-2.97%)

60.55

-0.17 (-0.28%)


MODERNA INC

NASDAQ:MRNA (7/21/2025, 8:22:14 PM)

After market: 31.05 +0.08 (+0.26%)

30.97

-0.29 (-0.93%)


GE VERNOVA INC

NYSE:GEV (7/21/2025, 8:04:01 PM)

After market: 567.89 +1.98 (+0.35%)

565.91

-8.69 (-1.51%)



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