U.S. spot Bitcoin ETFs experienced significant inflows totaling $467.38 million on May 5, 2026, marking the fourth consecutive day of positive ETF flows. BlackRock's iShares Bitcoin Trust (IBIT) led the surge with $251.45 million in net inflows, highlighting renewed investor confidence in Bitcoin through regulated products. Other major contributors included Fidelity's FBTC with $133.20 million and Ark Invest's ARKB with $92.28 million. Despite the overall positive trend, Grayscale's GBTC and VanEck's HODL saw outflows of $18.40 million and an unspecified amount, respectively. The strong inflows suggest a growing institutional interest in Bitcoin, reinforcing its status as a key asset for long-term digital investment strategies.