Key Takeaways COF stock has climbed 21.6% in 2025, outpacing peers and broader market benchmarks.The $35.3B Discover deal and strong NII growth boost COF's position in credit cards.Dividend hikes,$16B buyback and solid liquidity underscore COF's financial strength.Capital One Financial (COF) stock has risen 21.6% so far this year, outperforming its close peers — Ally Financial (ALLY) and OneMain Holdings, Inc. (OMF) . Moreover, it has outperformed the Zacks Finance Sector and the S&P 500 index, while under ...