According to ChainCatcher, based on SoSoValue data, yesterday (September 18, Eastern Time), the total net outflow of Bitcoin spot ETFs was US$52.827 million.

Yesterday, Grayscale ETF GBTC had a single-day net outflow of US$8.1347 million. The current historical net outflow of GBTC is US$20.069 billion.

Grayscale Bitcoin Mini Trust ETF BTC had a single-day net inflow of US$2.6634 million. Currently, the total historical net inflow of Grayscale Bitcoin Mini Trust BTC is US$385 million.

As of now, the total net asset value of the Bitcoin spot ETF is US$54.846 billion, the ETF net asset ratio (market value as a percentage of the total market value of Bitcoin) is 4.61%, and the historical cumulative net inflow has reached US$17.444 billion.