Wu said that according to SoSoValue data, yesterday (Eastern Time August 21) the total net outflow of Bitcoin spot ETFs was 194 million USD, marking five consecutive days of net outflows. The Bitcoin spot ETF with the highest single-day net inflow yesterday was the Grayscale Bitcoin Trust ETF BTC, with a single-day net inflow of 4.9657 million USD. Currently, the historical total net inflow of BTC stands at 1.716 billion USD.