The latest data shows that US spot bitcoin ETFs have reduced their bitcoin holdings by 4.76% since February 6, 2025. From January 1 to February 6, these funds added about 56,802.86 bitcoins to their balance sheets, but their holdings 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 $93.25 billion, which is about 5.6% of the total bitcoin market cap. BlackRock's IBIT solidified its lead with a net inflow of $39.24 billion and a position of 568,559.37 bitcoins. Fidelity's FBTC followed in second place with a total inflow of $11.25 billion and a position of 194,269.83 bitcoins. Meanwhile, grey release's GBTC was in third place with a position of 193,870.05 bitcoins despite recording a net outflow of $22.50 billion. The three giants - IBIT, FBTC, and GBTC - together account for 85.26% of the 1.121 million Bitcoin holdings in the entire ETF community. While there are currently 12 spot Bitcoin ETFs operating in the market, a 13th contender could join the fray. On February 14, Osprey Funds filed a draft S-1 registration form for its Osprey Bitcoin Trust (OBTC) with the SEC. As of March 16, 2025, OBTC had not been approved by the SEC, but timechainindex.com reported that the fund had held approximately 1,934 Bitcoin worth up to $160 million.