Open Standard leads stablecoin market cap growth with $794M in OUSD

The payments consortium backed by Coinbase, Mastercard, Shopify, Stripe, and Visa posted the largest 30-day supply gain of any stablecoin issuer Open Standard topped every stablecoin issuer in 30-day market cap growth, adding $794 million in its Open USD (OUSD) token, according to Token Terminal data reported on October 28, 2026. For a token that launched less than a month earlier, that is a fast start. The 30-day window covers almost the entire life of the product, which makes the number both impressive and a little unfair to everyone it beat. OUSD went live on September 30, 2026. Its founding partners are Coinbase, Mastercard, Shopify, Stripe, and Visa, a lineup that reads less like a crypto startup’s cap table and more like the guest list for a payments industry summit. From launch to the top of the leaderboard OUSD launched simultaneously on four blockchains: Ethereum, Base, Solana, and Tempo. At launch, its market cap sat at approximately $468 to $477 million. Within the first week, that figure climbed to around $668 million. Estimates from the first days after launch put the market cap in the $666 to $668 million range. The climb did not stall there. By mid-October, OUSD had ...