According to Golden Finance, the latest data shows that the US spot Bitcoin ETF has reduced its holdings of 4.76% of its Bitcoin holdings since February 6, 2025. From January 1 to February 6, the funds added about 56,802.86 bitcoins to their balance sheets, but positions have decreased by 55,348.00 bitcoins over the past 35 days. As of March 14, the total value of Bitcoin held by these funds was US$93.25 billion, accounting for about 5.6% of the total market value of Bitcoin. BlackRock's IBIT consolidated its lead with a net inflow of $39.24 billion and a holding of 568,559.37 Bitcoins. Fidelity's FBTC followed closely behind, with a total inflow of US$11.25 billion and a holding of 194,269.83 Bitcoins. Meanwhile, Grayscale's GBTC ranked third with 193,870.05 bitcoins despite recording a net outflow of $22.5 billion. These three giants - IBIT, FBTC and GBTC - account for 85.26% of the 1.121 million Bitcoin holdings of the entire ETF group. While 12 spot Bitcoin ETFs are currently operating in the market, the 13th competitor may join the competition. On February 14, Osprey Funds submitted a draft registration for its Osprey Bitcoin Trust (OBTC) Form S-1 to the US SEC. As of March 16, 2025, OBTC has not yet obtained the SEC's approval, but according to timechainindex.com, the fund has held about 1,934 bitcoins, worth up to $160 million.