On December 17th, there was a noticeable change in liquidity in the crypto market. According to data, both the US Bitcoin spot ETF and Ethereum spot ETF recorded net outflows on Tuesday, with a total outflow exceeding $500 million.

Let's first look at Bitcoin. Yesterday, the BTC spot ETF experienced a net outflow of $277 million, marking the second consecutive day of fund outflows. Among them, BlackRock's IBIT product led with a net outflow of $211 million (equivalent to 2,410 BTC). Although the daily outflow was significant, the product's total net inflow to date still reached $62.52 billion; Bitwise's BITB and VanEck's HODL followed, with net outflows of $50.93 million and $17.96 million respectively; Ark and Grayscale's BTC products also saw outflows of $16.87 million and $7.37 million each.

Interestingly, Fidelity's FBTC was the only BTC ETF to buck the trend yesterday, with a net inflow of $26.72 million (about 305 BTC). The product's total net inflow has reached $11.97 billion. As of now, the total assets of Bitcoin spot ETFs amount to $114.28 billion, accounting for 6.54% of Bitcoin's total market cap, with a cumulative net inflow of $57.27 billion.

The situation for Ethereum spot ETFs is even more severe. Yesterday, there was a net outflow of $224 million, marking the fourth consecutive day of net outflows, and none of the 9 ETH products recorded a net inflow. BlackRock's ETHA had the most significant outflow at $221 million (about 74,970 ETH), but its total net inflow still reached $12.87 billion; Fidelity's FETH experienced a net outflow of $2.94 million. The total assets of Ethereum spot ETFs amount to $18.17 billion, representing 5.11% of ETH's total market cap, with a cumulative net inflow of $12.64 billion.