Samsung Electronics Rises, Unimicron Down, Pop Mart Falls

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- Samsung Electronics plans to return as much as 110 trillion won ($79 billion) to shareholders, joining rival SK Hynix Inc. in handing investors a chunk of the windfall generated by the AI rush.
- Unimicron shares are down as SK Hynix supports the optical sector but damages the case for copper circuit boards.
- Pop Mart International Group Ltd. shares fell the most in nearly five months after the Labubu toymaker said it will likely miss its 2026 sales-growth target, citing a far tougher-than-expected first half.

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