Visa data cited by CoinDesk showed Circle’s token far ahead of Tether’s USDT, which accounted for about 25% of adjusted stablecoin transaction volume in the first half.
USDC accounted for roughly 70% of adjusted stablecoin transaction volume in the first half of 2026, while USDT represented about 25%, based on Visa data cited by CoinDesk. The figures point to a sizable lead for Circle’s dollar-pegged stablecoin over Tether’s rival token in adjusted transaction activity, a metric often used to filter out distortions such as non-economic or duplicate flows and better reflect payment usage.