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American Express has a pretty small market share (7.5%) https://wallethub.com/edu/market-share-by-credit-card-network/25531/ https://wallethub.com/edu/market-s

• jgalt212 9y ago
  Am I reading it wrong? The chart makes it look like Amex has 23%.
  • davidcbc 9y ago
    I'm referring to the cards in circulation number. The original claim was about a percentage of consumers, not a percentage of transactions so to me that is the more relevant number. Either way, 100% - 23% = 77% which is > than 70% so the point stands. Visa + Mastercard alone are over 70% using the purchase volume numbers
    • ocdtrekkie 9y ago
      Yeah, when Google said "over 70%", I basically just figured "Okay, so they have Mastercard and Visa." Amex and Discover are both tiny comparatively.
  • stordoff 9y ago
    Which means that 70% is possible without AmEx? I'd also wonder about how the numbers are computed - you can get incomplete records on a high percentage of consumers without the AmEx data as (people with AmEx) and (people with other card(s)) aren't disjoint sets.