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

Last update: Sep 12, 2025

Curious about the top performers within the S&P500 index one hour before the close of the markets on Friday? Dive into the list of today's session's top gainers and losers for a comprehensive overview.

Today's top gainers

Ticker	Change	Comment
WBD	18.4%	WARNER BROS DISCOVERY INC's (NASDAQ:WBD) stock price is advancing with 18.4% to a price of $19.14. Shareholders saw the stock price going 34.19% higher in the past month.
TSLA	6.59%	TESLA INC (NASDAQ:TSLA) experienced a significant 6.59% increase, reaching $393.13 during Friday's session. A press release (Levi & Korsinsky Reminds Tesla, Inc. Investors of the Pending Class Action Lawsuit With a Lead Plaintiff Deadline of October 3, 2025 - TSLA) was released yesterday.
MU	4.7%	MICRON TECHNOLOGY INC's (NASDAQ:MU) stock price increased by 4.7% to $157.64. In the last month the share price increased with 21.16%.
PLTR	4.01%	PALANTIR TECHNOLOGIES INC-A (NASDAQ:PLTR) experienced a significant 4.01% increase, reaching $170.95 during Friday's session. Shareholders saw the stock price going 90.58% higher is the past 6 months.
NRG	3.41%	NRG ENERGY INC's (NYSE:NRG) shares rose 3.41% to $163.3 during Friday's session. In the last 6 months the stock gained 65.55%.
SMCI	2.59%	SUPER MICRO COMPUTER INC's (NASDAQ:SMCI) stock price increased by 2.59% to $45.09.
VST	2.31%	Positive market sentiment drove VISTRA CORP's (NYSE:VST) stock price up by 2.31% to $208.76 during Friday's session. The stock is trading 63.95% higher than 6 months ago.
KR	2.14%	In an impressive move, KROGER CO's (NYSE:KR) shares recorded a 2.14% increase, closing at $68.67 during Friday's session. In the last year the share price increased with 20.25%.
MSFT	2.14%	Exciting news for MICROSOFT CORP (NASDAQ:MSFT) as its stock price surged 2.14% to $511.73 during Friday's session. In the last 6 months the stock gained 28.94%.
WDC	2.06%	Investors celebrated as WESTERN DIGITAL CORP (NASDAQ:WDC) experienced a 2.06% rise in its shares, closing at $98.13 during Friday's session. In the last month the stock gained 26.4%.

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

Today's top losers

Ticker	Change	Comment
MRNA	-7.25%	MODERNA INC (NASDAQ:MRNA) encountered a 7.25% decrease in its shares, reaching $23.55 during Friday's session. In the last 6 months the share price dropped with 26.66%.
ANET	-7.0%	ARISTA NETWORKS INC's (NYSE:ANET) stock price encountered a 7.0% decline, reaching $142.32 during Friday's session. Shareholders saw the stock price going 65.72% higher in the past 3 months.
ORCL	-4.26%	ORACLE CORP (NYSE:ORCL) encountered a 4.26% decrease in its shares, reaching $294.73 during Friday's session. Yesterday the company had a press release: Absci Accelerates AI-Driven Drug Discovery with Oracle and AMD.
CRL	-3.62%	CHARLES RIVER LABORATORIES's (NYSE:CRL) stock price is declining with 3.62% to a price of $153.95. A press release (Charles River Collaborates to Enhance Oncology Manufacturing Portfolio, Advancing Research and Development of Cell and Gene Therapies to Treat Cancer) was released yesterday.
PFE	-3.5%	Investors witnessed a 3.5% decrease in PFIZER INC's (NYSE:PFE) stock price, which closed at $23.99 during Friday's session.
FFIV	-3.37%	There was a downturn in F5 INC's (NASDAQ:FFIV) shares, as they experienced a 3.37% decline, closing at $323.31 during Friday's session. Yesterday the company had a press release: F5 to Acquire CalypsoAI to Bring Advanced AI Guardrails to Large Enterprises.
WSM	-3.3%	The market experienced a 3.3% downturn in WILLIAMS-SONOMA INC's (NYSE:WSM) stock price, closing at $196.8 during Friday's session. Shareholders saw the stock price going 32.19% higher in the past 3 months.
TER	-3.3%	Investors witnessed a 3.3% decrease in TERADYNE INC's (NASDAQ:TER) stock price, which closed at $111.75 during Friday's session. The stock is trading 39.09% higher than 3 months ago.
LULU	-3.17%	Investors witnessed a 3.17% decrease in LULULEMON ATHLETICA INC's (NASDAQ:LULU) stock price, which closed at $160.52 during Friday's session. Shareholders saw the stock price going 30.67% lower in the past 3 months.
INCY	-3.12%	The market experienced a downward movement in INCYTE CORP's (NASDAQ:INCY) stock price, closing at $83.48 with a 3.12% decrease during Friday's session. In the last 3 months the share price increased with 27.19%.