Bitcoin spot ETFs experienced a significant inflow of $629.73 million on May 1, marking the largest single-day inflow since mid-April. This surge coincided with a CRT liquidity sweep below $76,000, with Bitcoin currently trading at $78,310. BlackRock's IBIT led the inflows with $284.39 million, followed by Fidelity's FBTC and Ark and 21Shares' ARKB. The total net assets of Bitcoin ETFs have now surpassed $103.78 billion, representing 6.66% of Bitcoin's market cap. The recent inflow reverses three consecutive days of outflows and suggests a potential shift in market dynamics, as April's rally was primarily driven by futures rather than spot accumulation. CryptoQuant's analysis indicates that sustained ETF inflows could provide the structural support needed for a bullish trend, contrasting with the speculative nature of April's gains. Key levels to watch include the CRT range high at $80,000, with potential resistance zones at $86,000 to $88,000 if Bitcoin closes above this threshold.