Visa, Mastercard: The easy rebound is done, what drives the next leg of re-rating?

Visa and Mastercard report earnings on 27 and 29 October. Overall purchase volumes, cross-border trends and FX volatility look fine going into the print, and we frame the debate around three questions: whether Visa's fiscal 2027 revenue guide could imply growth below the 11% consensus; whether the networks can earn a higher multiple as AI or cybersecurity winners rather than merely "AI-insulated"; and whether Capital One can migrate meaningful credit card volume to Discover in 2027. U.S. purchase volumes look strong, with bank earnings implying only a 10-20bp deceleration versus the 50-100bp slowdown consensus expects;