What the Capital One-Discover Tie-Up Means for the Card Business Now

Capital One reported solid Q2 2026 earnings with adjusted earnings of $5.81 per share, up from $5.48 year-over-year. The Discover acquisition integration is progressing well with debit customers transitioned to the Discover network and credit card customers being moved to Capital One's systems. However, integration costs of $1.08 per share continue to complicate earnings. Capital One is deliberately shifting Discover toward a more conservative financing approach, which may temporarily depress performance. Despite earnings complexity, revenues grew 4% year-over-year and credit quality metrics improved across the board.