Group 1: Company Performance - Visa reported a year-over-year revenue growth of 15% in Q1 2026, with diluted earnings per share (EPS) increasing by 17% [1] - Mastercard's revenue in Q4 2025 increased by 18%, and diluted EPS soared by 24% [1] Group 2: Market Position and Growth Potential - Both Visa and Mastercard benefit from strong network effects, with high adoption rates of their branded cards among consumers and strong merchant acceptance [3] - Mastercard, being a smaller business, has a larger growth opportunity compared to Visa, suggesting that its revenue and earnings could expand at a faster rate if it approaches Visa's market share [3] Group 3: Investment Considerations - Neither Visa nor Mastercard currently offers a good value opportunity, with price-to-earnings ratios of 32.8 and 34.8, respectively, indicating a lack of margin of safety [4] - Investors may consider owning both stocks despite their high valuations, as Mastercard has greater growth potential but is also more expensive [4]