Crypto market cap leaps $800B in Q3, but spot volume drops 14%
Summary
Crypto market capitalization rose 39.6% in the third quarter of 2026 to about $2.96 trillion, while turnover at the top 10 spot exchanges fell 14.2% to $1.65 trillion. Open interest at the top 10 perpetual exchanges increased 40.6%, ending September above $100 billion. Binance’s share of tracked spot trading grew, while KuCoin and Deribit saw perpetual open interest decline. The figures measure different things and do not show that funds moved from spot into derivatives, establish net bullish sentiment, or prove fresh inflows: dollar open interest can rise with asset prices even if contract quantities do not. Market-wide daily trading volume improved in September, but the quarterly average was down 8.6% from the second quarter.
