According to CoinMarketCap, cumulative trading volume across US spot crypto ETFs reached $2 trillion on Jan. 2, achieving the milestone in half the time it took to cross $1 trillion (source: CoinMarketCap on X, Jan 5, 2026). According to CoinMarketCap, the update attributes this faster growth to accelerating institutional demand, underscoring rising participation in US-listed spot crypto ETFs that is relevant for liquidity and execution (source: CoinMarketCap on X, Jan 5, 2026).

According to the source, US spot BTC ETFs registered $566.4M in net outflows on Nov. 4, 2025, while spot ETH ETFs saw $219.4M in net outflows, and spot SOL ETFs recorded $14.9M in net inflows (source: the source). The source also indicates combined BTC and ETH outflows of $785.8M versus net inflows to SOL, a mix that traders may track for relative demand across US crypto ETF products (source: the source).