Bitcoin ETFs just saw their biggest day in a month thanks entirely to BlackRock

U.S. spot bitcoin ETFs added $526.6 million on Monday, led entirely by BlackRock’s IBIT net inflow of $665.2 million.Fidelity's FBTC and Grayscale's GBTC saw outflows of $83.6 million and $54.9 million, respectively.Ether funds dropped $103.3 million, marking a fourth consecutive session of outflows.U.S. spot bitcoin exchange-traded funds attracted $526.6 million on Monday, the largest daily net inflow in nearly a month, driven entirely by BlackRock’s iShares Bitcoin Trust (IBIT).IBIT pulled in $665.2 million, its biggest daily inflow since Oct. 7 last year, according to SoSoValue data. Combined, the bitcoin funds last drew more on Sept. 22, when they added $714.7 million.Fidelity’s FBTC lost $83.6 million, while Grayscale’s GBTC shed $54.9 million in Monday’s trading session, while the remaining funds recorded no net flows, underscoring how concentrated buying was.The inflow more than erased last week’s $228.5 million of withdrawals, though the funds remain about $90.5 million in the red for October, according to CoinDesk calculations using SoSoValue’s figures.Ether funds moved in the opposite direction, losing $103.3 million in their fourth consecutive session of outflows. BlackRock’s ETHA accounted for $95.4 million of the withdrawals, according to SoSoValue.12345678910