Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:

Listen for comprehensive cross-platform coverage of the US market close as heard on Bloomberg Television, Bloomberg Radio, and YouTube with Romaine Bostick, Tim Stenovec, Carol Massar
- Advanced Micro Devices (AMD) is one of this year’s best-performing chip stocks, but with skepticism about artificial-intelligence spending on the rise, it could use strong results and an aggressive outlook to maintain the momentum when the firm reports earnings Tuesday afternoon. Like AMD, Intel had been a significant outperformer this year as AI spending drove demand for its central processing unit, or CPU, chips. Prior to its report, Intel was up 150% in 2026. But by the end of trading on Monday, that gain was cut to 63%.

- Fiserv (FISV) shares gain as much as 9.4% on Tuesday, its biggest intraday boost since November 2020, after the fintech solutions firm’s third-quarter adjusted earnings per share beat the average analyst estimate.

- Super Micro Computer (SMCI) forecast net sales for the second quarter; the guidance beat the average analyst estimate.