September saw a decline in most crypto metrics, with total adjusted on-chain volume dropping by 13% to $328B (BTC: -10.2%, ETH: -17.8%). Stablecoin volume decreased by 30.8% to $832B, though issued supply rose by 1.3% to $150.4B, dominated by USDT with a 78.3% market share and USDC at 17.6%.