U.S. spot Bitcoin ETFs have maintained robust inflows, with BlackRock’s iShares Bitcoin Trust (IBIT) receiving 4,172 BTC worth $303 million on March 5 alone, pushing total net inflows since February 24 to 21,814 BTC valued at $1.58 billion. This reinforces a continued trend of institutional investment in regulated Bitcoin vehicles, with Fidelity’s Wise Origin Bitcoin Fund (FBTC) also contributing to market inflows.