According to Deep Tide TechFlow news on December 21, based on SoSoValue data, there was a total net outflow of $27.7 million from Bitcoin spot ETFs yesterday (Eastern Time December 20). Yesterday, Grayscale's ETF GBTC had a net outflow of $5.736 million, and the historical net outflow for GBTC currently stands at $21.293 billion.

Grayscale's Bitcoin Mini Trust ETF BTC had a net inflow of $6.4074 million yesterday, and the historical total net inflow for Grayscale's Bitcoin Mini Trust BTC is currently $860 million. The second is Franklin's ETF EZBC, with a net inflow of $5.6136 million yesterday, and the historical total net inflow for EZBC has reached $467 million.

As of the time of publication, the total net asset value of Bitcoin spot ETFs is $109.725 billion, with an ETF net asset ratio (market value compared to Bitcoin's total market value) of 5.75%. The historical cumulative net inflow has reached $36.052 billion.