Citigroup (NYSE:C) stock gained 5.6% in Wednesday premarket trading after the megabank posted better-than-expected Q4 results and approved a $20B stock buyback program. Furthermore, the company expects its net interest income to rise in 2025.

Citigroup stock is soaring Wednesday after the big bank topped earnings expectations and unveiled a massive stock buyback program. Here's why that's important.

Shares of the third-largest U.S. lender were last up 5% in premarket trading on Wednesday after Citigroup said its board has authorized a new share repurchase program. "2024 was a critical year and our results show our strategy is delivering as intended and driving stronger performance in our businesses,

The megabank reported achievements in several areas, but lowered its 2026 expectations for a profitability metric that investors have been closely watching.

Citigroup cut its closely watched guidance for profitability in 2026 as it tackles rising regulatory expenses, but also announced a $20 billion share buyback program. Citigroup beat estimates for fourth-quarter profit,