USDC records $81.2 billion in DEX trading volume over 30 days

USDC moved $81.2 billion through decentralized exchanges in the 30 days ending around October 12, 2026. Uniswap’s v3 and v4 deployments handled $26.4 billion of that total, or roughly a third. Breaking down the numbers Across 35 trading venues, all stablecoins combined generated $161.4 billion in DEX volume over the same 30-day window. USDC accounted for roughly half of all stablecoin trading on decentralized exchanges. Uniswap’s v3 and v4 platforms captured 47.2% of total stablecoin DEX activity, amounting to $76.2 billion. Thirty-four other venues split what was left. USDC’s circulating supply sat at approximately $74.6 billion at the end of September 2026. So the 30-day trading volume exceeded the entire stock of USDC in existence. Weekends are a big deal on-chain USDC generated $40.2 billion in weekend DEX trading volume during the third quarter of 2026. What is driving the activity About 69% of USDC’s on-chain activity is linked to DEX liquidity provision. There is a caveat worth noting. Some DEX volume gets inflated by flash loans, which are uncollateralized loans borrowed and repaid within a single transaction. These can create large headline numbers without reflecting susta...