V · News · 20260825N

Competition and Market Share

VISA INC. · 2026-08-25 · Importance 17 · Surprise 24

American Express was reported to maintain the lowest fraud rate among major U.S. card networks. Its closed-loop network gives AmEx access to both cardholder and merchant data, creating a fraud-detection advantage over Visa and Mastercard, which rely on third-party issuers and acquirers. AmEx’s continued investment in artificial intelligence and machine learning may increase competitive pressure on Visa’s fraud-prevention capabilities and network proposition.

Key facts

• Visa closed at a fresh record high on August 24, up 3.06% to $382.41. source
• Visa dipped approximately 0.2% to $381.62 Tuesday morning after closing Monday at a record $382.41. source