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

On this episode of Stock Movers:

- Asta Energy shares open at €43 in Frankfurt on their first day of trading after the electrical power equipment firm’s €165 million initial public offering. The shares surged 46%.
- Swatch forecast strong growth for this year after the maker of Tissot and Omega watches saw a rebound in demand over the second half of 2025.The shares rose as much as 7.5% in early Swiss trading, the biggest intraday gain since October.
- Experian shares rise as much as 3.9%, the most since July, after the UK credit and marketing services firm announced a $1 billion share repurchase program.