US spot Bitcoin ETFs recorded inflows of $2.75 billion last week, a 4.5-fold increase from the previous week's $608 million, as Bitcoin surpassed its previous all-time high of $109,000.
BlackRock's IBIT led the gains with $430.8 million on May 23, marking eight consecutive days of inflows.
Meanwhile, Grayscale's GBTC and ARK 21Shares' ARKB saw outflows of $89.2 million and $73.9 million, respectively.
Bitcoin hit a new high of $111,970 on May 22 before settling at $108,141.
The fear and greed index dropped to 66 ("greed") from 78 ("extreme fear") amid the slight pullback.