Today's biggest winners and losers in the stock market.

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- AI-exposed stocks that have soared this year due to optimism over the data-center buildout are pulling back on Tuesday, following a retreat in South Korea’s benchmark Kospi and Nasdaq 100 futures. STMicro fell as much as 5.1%.
- Heineken appointed Rafael Oliveira chief executive officer, as the Dutch brewer breaks with habit by hiring an outsider to try to reverse a slump in demand. Shares rose as much as 3.2%.
- Signify plunges as much as 18%, the most on record, after the Dutch lighting manufacturer announced new medium-term targets and an updated dividend policy that analysts say would mean big cuts to shareholder payouts.

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