Which S&P500 stocks are showing activity after the closing bell on Tuesday?

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Let's have a look at what is happening on the US markets after the closing bell on Tuesday. Below you can find the top S&P500 gainers and losers in today's after hours session.


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Today's after hours gainers

TickerChangeComment
CDNS3.97%After the closing bell, CADENCE DESIGN SYS INC (NASDAQ:CDNS) demonstrated strong momentum in the after-hours session, with a 3.97% rise to $294.7. CADENCE DESIGN SYS INC released earnings Yesterday. Earlier today the company had a press release: Cadence Reports Fourth Quarter and Fiscal Year 2025 Financial Results.
STLD3.01%Positive market activity for STEEL DYNAMICS INC (NASDAQ:STLD) after regular trading hours, with a 3.01% increase to $197.7 in the after-hours session on Tuesday. In the last 3 months the share price increased with 21.35%.
SNPS2.68%SYNOPSYS INC's (NASDAQ:SNPS) stock price increased by 2.68% to $433.26. The stock is trading 30.43% lower than 6 months ago.
MOS2.27%MOSAIC CO/THE's (NYSE:MOS) shares rose 2.27% to $29.74 during Tuesday's after hours session. In the last 3 months the share price increased with 20.31%.

Our after hours gainers page will show you the full list.

Today's after hours losers

TickerChangeComment
ANET-6.44%ARISTA NETWORKS INC's (NYSE:ANET) shares experienced a 6.44% decrease to $133.4 in the after-hours session. Shareholders saw the stock price going 21.42% higher in the past 3 months.
PANW-5.44%PALO ALTO NETWORKS INC's (NASDAQ:PANW) stock price is declining with 5.44% to a price of $154.6. yesterday the company released their earnings.
AMD-3.88%ADVANCED MICRO DEVICES's (NASDAQ:AMD) stock price saw a decrease of 3.88% to $195.2 during Tuesday's after-hours session. Two days ago the company had a press release: AMD and TCS to bring state-of-the-art ‘Helios’ rack-scale AI architecture to India.
SNDK-3.66%The after-hours session reflects SANDISK CORP (NASDAQ:SNDK)'s ongoing correction after experiencing a %ABSPERF% loss in the regular trading hours. Shareholders saw the stock price going 42.79% higher in the past month.
HSY-2.19%HERSHEY CO/THE's (NYSE:HSY) stock price is showing a decline of 2.19% to a price of $214.59 during the after-hours session. The stock is trading 20.93% higher than 6 months ago.

Our after hours losers page will show you the full list.