Bitcoin investors have now splashed over $50 billion on U.S. spot exchange-traded funds (ETFs), just 18 months after their inception in January 2024 . This inflow underscores the increasing institutional demand and broader acceptance of Bitcoin as an investment asset .
BlackRock's iShares Bitcoin Trust ETF (IBIT) led the charge with a net inflow of $53 billion, while Fidelity's Fidelity Wise Origin Bitcoin Fund (FBTC) saw the second-highest net inflow at $12.29 billion . According to Farside Investors, Grayscale Bitcoin Trust ETF (GBTC) was the only fund to witness a net outflow of $23.34 billion .
The inflows into Bitcoin ETFs mark a strong year-to-date performance . Overall, digital asset products have attracted a net inflow of $18.96 billion, with Bitcoin accounting for nearly 83% of the total inflows, while Ethereum accounted for 16% . IBIT remains the most dominant product, as the fund became the first Bitcoin ETF to hold more than 700,000 BTC .
Institutional demand reshapes Bitcoin supply dynamics . Spot ETF volumes are down to $5.02 billion, and futures markets saw a dip to $31.2 billion, the lowest in over a year . Despite concerns over liquidity, price fatigue, and volume thinning, BTC-USD's surge past $100,000 is not speculative—it is structural .
Additionally, Bitcoin is entering the second half of 2025 with significantly reduced volatility and on-chain activity, even as institutional interest intensifies .
Overall, Bitcoin ETFs have enjoyed substantial growth, positioning them as a major player in the cryptocurrency investment space, attracting institutional and retail investors alike .