Uncover the latest developments among S&P500 stocks in today's session.

By Mill Chart - Last update: May 19, 2025

Join us in exploring the top gainers and losers within the S&P500 index in the middle of the day on Monday as we examine the latest happenings in today's session.

Gainers

TickerChangeComment
MRNA7.76%MODERNA INC's (NASDAQ:MRNA) shares soared 7.76% to $26.79 during Monday's session. Shareholders saw the stock price going 24.64% lower in the past 3 months.
UNH6.66%With a 6.66% surge, UNITEDHEALTH GROUP INC's (NYSE:UNH) stock price reached $311.35 during Monday's session, signaling positive momentum. Earlier today the company had a press release: UNITEDHEALTH GROUP INCORPORATED (NYSE: UNH) SHAREHOLDER ALERT Bernstein Liebhard LLP Reminds UnitedHealth Group Incorporated Investors of Upcoming Deadline.
DG4.55%In an impressive move, DOLLAR GENERAL CORP's (NYSE:DG) shares recorded a 4.55% increase, closing at $97.81 during Monday's session. Shareholders saw the stock price going 28.93% higher in the past 3 months.
HUM3.21%Investors witnessed a remarkable 3.21% rise in HUMANA INC's (NYSE:HUM) shares, which climbed to $245.6 during Monday's session. In the last year the stock lost 33.19%.
TTWO3.11%TAKE-TWO INTERACTIVE SOFTWRE's (NASDAQ:TTWO) shares rose 3.11% to $233.79. The stock is trading 27.65% higher than 6 months ago.
GILD2.65%GILEAD SCIENCES INC (NASDAQ:GILD) experienced a significant 2.65% increase, reaching $105.22 during Monday's session. The stock is trading 51.36% higher than a year ago.
GEV2.03%GE VERNOVA INC's (NYSE:GEV) stock price increased by 2.03% to $436.73. Shareholders saw the stock price going 32.3% higher in the past month.
AZO1.78%Exciting news for AUTOZONE INC (NYSE:AZO) as its stock price surged 1.78% to $3.85K during Monday's session. In the last 6 months the share price increased with 21.85%.
NI1.71%With a 1.71% surge, NISOURCE INC's (NYSE:NI) stock price reached $39.75 during Monday's session, signaling positive momentum. In the last year the share price increased with 33.7%.
FCX1.7%FREEPORT-MCMORAN INC (NYSE:FCX) witnessed a notable 1.7% uptick in its shares, reaching $38.66 during Monday's session. The stock is trading 29.89% lower than a year ago.

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

Top losers

TickerChangeComment
FSLR-6.48%Investors witnessed a 6.48% decrease in FIRST SOLAR INC's (NASDAQ:FSLR) stock price, which closed at $166.9 during Monday's session. The stock is trading 39.44% higher than a month ago.
AES-4.38%AES CORP's (NYSE:AES) stock price is declining with 4.38% to a price of $11.68. Shareholders saw the stock price going 22.96% higher in the past 3 months.
TSLA-3.46%Investors witnessed a 3.46% drop in TESLA INC's (NASDAQ:TSLA) stock price, which closed at $337.86 during Monday's session. In the last month the share price increased with 45.0%.
PLTR-3.4%During Monday's session, PALANTIR TECHNOLOGIES INC-A's (NASDAQ:PLTR) shares took a tumble, falling 3.4% to $125.12. In the last month the stock gained 38.11%.
ENPH-3.13%ENPHASE ENERGY INC's (NASDAQ:ENPH) stock price encountered a 3.13% decline, reaching $48.82 during Monday's session. In the last 3 months the stock lost 21.18%.
CZR-3.0%Investors witnessed a 3.0% drop in CAESARS ENTERTAINMENT INC's (NASDAQ:CZR) stock price, which closed at $29.78 during Monday's session. The stock is trading 20.34% higher than a month ago.
BBY-2.52%During Monday's session, BEST BUY CO INC's (NYSE:BBY) shares took a tumble, falling 2.52% to $71.94. BEST BUY CO INC is releasing earnings today. In the last 6 months the stock lost 20.35%.
AMD-2.46%ADVANCED MICRO DEVICES's (NASDAQ:AMD) stock price is declining with 2.46% to a price of $114.29. A press release (AMD Announces Agreement to Divest ZT Systems Data Center Infrastructure Manufacturing Business to Sanmina) was released earlier today.
TPL-2.45%TEXAS PACIFIC LAND CORP's (NYSE:TPL) stock price is declining with 2.45% to a price of $1.4K. The stock is trading 134.0% higher than a year ago.
SMCI-2.44%The market experienced a downward movement in SUPER MICRO COMPUTER INC's (NASDAQ:SMCI) stock price, closing at $45.02 with a 2.44% decrease during Monday's session. Shareholders saw the stock price going 46.48% higher in the past month.

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

FREEPORT-MCMORAN INC

NYSE:FCX (2/23/2026, 6:52:22 PM)

After market: 65.78 +0.23 (+0.35%)

65.55

+1.21 (+1.88%)


TEXAS PACIFIC LAND CORP

NYSE:TPL (2/23/2026, 6:40:00 PM)

After market: 502.28 -0.57 (-0.11%)

502.85

+2.97 (+0.59%)


GILEAD SCIENCES INC

NASDAQ:GILD (2/23/2026, 6:40:48 PM)

After market: 149.83 0 (0%)

149.83

-1.57 (-1.04%)


HUMANA INC

NYSE:HUM (2/23/2026, 6:42:56 PM)

After market: 182 +0.84 (+0.46%)

181.16

-8.67 (-4.57%)


UNITEDHEALTH GROUP INC

NYSE:UNH (2/23/2026, 6:49:20 PM)

After market: 282.41 +0.07 (+0.02%)

282.34

-7.66 (-2.64%)


AUTOZONE INC

NYSE:AZO (2/23/2026, 6:40:00 PM)

After market: 3829.27 0 (0%)

3829.27

+80.75 (+2.15%)


BEST BUY CO INC

NYSE:BBY (2/23/2026, 6:40:00 PM)

After market: 62.99 +0.28 (+0.45%)

62.71

-1.77 (-2.75%)


TAKE-TWO INTERACTIVE SOFTWRE

NASDAQ:TTWO (2/23/2026, 6:06:55 PM)

After market: 195.59 0 (0%)

195.59

-4.13 (-2.07%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (2/23/2026, 6:56:56 PM)

After market: 30.84 +0.13 (+0.42%)

30.71

-1.71 (-5.27%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (2/23/2026, 6:56:38 PM)

After market: 196.164 -0.44 (-0.22%)

196.6

-3.55 (-1.77%)


FIRST SOLAR INC

NASDAQ:FSLR (2/23/2026, 6:39:16 PM)

After market: 242.15 0 (0%)

242.15

+0.27 (+0.11%)


NISOURCE INC

NYSE:NI (2/23/2026, 6:40:00 PM)

After market: 46.2 0 (0%)

46.2

-0.17 (-0.37%)


AES CORP

NYSE:AES (2/23/2026, 6:40:00 PM)

After market: 16.2709 +0.01 (+0.07%)

16.26

-0.25 (-1.51%)


DOLLAR GENERAL CORP

NYSE:DG (2/23/2026, 6:40:14 PM)

After market: 152.59 -0.31 (-0.2%)

152.9

+2.26 (+1.5%)


TESLA INC

NASDAQ:TSLA (2/23/2026, 6:56:54 PM)

After market: 399.48 -0.35 (-0.09%)

399.83

-11.99 (-2.91%)


CAESARS ENTERTAINMENT INC

NASDAQ:CZR (2/23/2026, 6:27:09 PM)

After market: 20.22 0 (0%)

20.22

-1.01 (-4.76%)


ENPHASE ENERGY INC

NASDAQ:ENPH (2/23/2026, 6:38:42 PM)

After market: 47.3 -0.1 (-0.21%)

47.4

+0.84 (+1.8%)


MODERNA INC

NASDAQ:MRNA (2/23/2026, 6:55:41 PM)

After market: 50.3 +0.01 (+0.02%)

50.29

+0.42 (+0.84%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (2/23/2026, 6:56:09 PM)

After market: 130.47 -0.13 (-0.1%)

130.6

-4.64 (-3.43%)


GE VERNOVA INC

NYSE:GEV (2/23/2026, 6:55:40 PM)

After market: 834.99 +3.29 (+0.4%)

831.7

+1.36 (+0.16%)



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