On January 10, 11 Bitcoin spot ETFs were officially approved on January 10, 2024, and listed for trading on January 11, which is one year since then. After 250 trading days, Bitcoin spot ETFs have received a net inflow of US$36.374 billion, of which BlackRock IBIT had the largest net inflow of US$37.85 billion, followed by Fidelity FBTC with a net inflow of US$12.14 billion. Grayscale GBTC had a net outflow of US$21.58 billion, becoming the only Bitcoin spot ETF with a net outflow. Note: Grayscale Bitcoin Trust was previously the main way for investors to enter the Bitcoin market. Before the launch of the spot Bitcoin ETF, it had accumulated a large number of holdings, with an initial holding of 619,200 BTC. After its transformation into a spot ETF, it directly inherited the previous huge asset base. GBTC's management fee rate (1.5%) is higher than that of other competitors, resulting in investors choosing to redeem GBTC shares and turn to other ETFs after the launch of the spot ETF, making it the only Bitcoin spot ETF with net outflows.