On March 20, ten BTC spot ETFs had a net outflow of $261.66 million, corresponding to a net outflow of about 3,983 BTC from ETF custody addresses after the opening of the US stock market tonight (March 21):

Outflow: Grayscale (GBTC) and Invesco (BTCO) had an outflow of about 6,040 BTC (corresponding to a capital outflow of $396.83 million on March 20);

Inflow: The remaining eight ETFs had an inflow of about 2,057 BTC (corresponding to a capital inflow of $135.17 million on March 20).

Currently, the ten BTC spot ETFs hold a total of 829,982 BTC ($54.52 billion).