The first week of 2026, the US cryptocurrency asset ETF market performed remarkably.

BTC spot ETFs saw a net inflow of approximately $1.2 billion this week. Based on this pace, the annualized inflow could reach $150 billion. Among them, BlackRock IBIT performed the strongest, absorbing $888 million in a single week, followed by Fidelity FBTC with a contribution of $106 million. Other products also maintained continuous positive inflows.

ETH spot ETFs are also not lagging, with inflows reaching around $115 million during the week. Even dedicated ETFs for XRP and SOL experienced capital inflows in the tens of millions of dollars.

The only outlier is Grayscale GBTC, an established product that continues to face net outflows, with a net outflow of $53.67 million last week. Next-generation ETF products are gradually eating into the market share of traditional funds, and this trend of replacement is accelerating.

Bloomberg analyst Eric Balchunas's view is very interesting: last year, during the market downturn, $22 billion was still able to flow in. Now that the market has improved, the speed of capital inflow will only become more intense. The enthusiasm of institutional funds in this wave is evident.