JPMorgan Chase is strengthening its position as the leading U.S. credit card issuer, outpacing competitors like Visa and Mastercard in 2025. The bank experienced significant growth in spending, lending, and card balances, with a 7% increase in sales volume in the second quarter of 2025, surpassing rivals' growth rates. Chase's focus on acquiring and maintaining profitable card accounts has boosted revenue and market share, solidifying its dominance in the U.S. credit card industry.