U.S. spot Bitcoin ETFs have experienced $1.52 billion in outflows over four days, the largest streak since Trump's re-election.BlackRock's IBIT ETF saw the largest outflow, losing $188.7 million, followed by Fidelity's FBTC with $83 million.Bitwise's BITB was the only ETF to record positive movement, adding $8.5 million.Total assets held by all spot Bitcoin ETFs stand at $107.53 billion, despite recent outflows.