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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 (1/6/2026, 6:00:22 PM)

After market: 56.2 +0.05 (+0.09%)

56.15

+1.74 (+3.2%)


TEXAS PACIFIC LAND CORP

NYSE:TPL (1/6/2026, 5:05:00 PM)

After market: 293.81 0 (0%)

293.81

-3.73 (-1.25%)


GILEAD SCIENCES INC

NASDAQ:GILD (1/6/2026, 5:38:37 PM)

After market: 121.6 +0.24 (+0.2%)

121.36

+3.06 (+2.59%)


HUMANA INC

NYSE:HUM (1/6/2026, 5:41:40 PM)

After market: 279.86 +0.02 (+0.01%)

279.84

+4.04 (+1.46%)


UNITEDHEALTH GROUP INC

NYSE:UNH (1/6/2026, 6:02:45 PM)

After market: 349.1 +0.13 (+0.04%)

348.97

+6.95 (+2.03%)


AUTOZONE INC

NYSE:AZO (1/6/2026, 5:50:09 PM)

After market: 3244.92 0 (0%)

3244.92

-23.38 (-0.72%)


BEST BUY CO INC

NYSE:BBY (1/6/2026, 5:45:08 PM)

After market: 72.17 0 (0%)

72.17

+2.12 (+3.03%)


TAKE-TWO INTERACTIVE SOFTWRE

NASDAQ:TTWO (1/6/2026, 5:20:01 PM)

After market: 254.35 0 (0%)

254.35

-2.96 (-1.15%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (1/6/2026, 6:00:59 PM)

After market: 30.5094 -0.03 (-0.1%)

30.54

+0.47 (+1.56%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (1/6/2026, 6:02:54 PM)

After market: 214.3 -0.05 (-0.02%)

214.35

-6.73 (-3.04%)


FIRST SOLAR INC

NASDAQ:FSLR (1/6/2026, 5:36:21 PM)

After market: 268.78 0 (0%)

268.78

-3.22 (-1.18%)


NISOURCE INC

NYSE:NI (1/6/2026, 5:05:00 PM)

After market: 41.88 0 (0%)

41.88

+0.31 (+0.75%)


AES CORP

NYSE:AES (1/6/2026, 6:00:23 PM)

After market: 14.8 -0.1 (-0.67%)

14.9

+0.17 (+1.15%)


DOLLAR GENERAL CORP

NYSE:DG (1/6/2026, 5:50:09 PM)

After market: 144.69 0 (0%)

144.69

+5.76 (+4.15%)


TESLA INC

NASDAQ:TSLA (1/6/2026, 6:03:01 PM)

After market: 434.51 +1.55 (+0.36%)

432.96

-18.71 (-4.14%)


CAESARS ENTERTAINMENT INC

NASDAQ:CZR (1/6/2026, 5:20:00 PM)

After market: 23.77 0 (0%)

23.77

-0.09 (-0.38%)


ENPHASE ENERGY INC

NASDAQ:ENPH (1/6/2026, 5:41:39 PM)

After market: 34.8 +0.05 (+0.14%)

34.75

+0.75 (+2.21%)


MODERNA INC

NASDAQ:MRNA (1/6/2026, 6:00:12 PM)

After market: 35.45 -0.21 (-0.59%)

35.66

+3.49 (+10.85%)


PALANTIR TECHNOLOGIES INC-A

NASDAQ:PLTR (1/6/2026, 6:02:42 PM)

After market: 179.376 -0.33 (-0.19%)

179.71

+5.67 (+3.26%)


GE VERNOVA INC

NYSE:GEV (1/6/2026, 5:50:09 PM)

After market: 686.33 0 (0%)

686.33

+5.47 (+0.8%)



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