Core Insights - Spot Bitcoin ETF trading volume exceeded $5 billion on October 1, with Bitcoin prices surpassing $120,000, marking a 10% weekly gain from late September lows around $109,000 [1] - Institutional investors contributed significantly to the rally, with net inflows of $676 million on October 1, including $405 million from BlackRock's iShares Bitcoin Trust and $179 million from Fidelity's acquisition of 1,570 BTC [1] - BlackRock's IBIT now holds 773,000 Bitcoin, valued at approximately $93 billion, making it the largest institutional custodian with 3.88% of the total Bitcoin supply [2] - Since the January 2024 launch, Spot Bitcoin ETFs have accumulated $58.44 billion in net inflows, with total net assets reaching $155.89 billion, representing 6.66% of Bitcoin's market capitalization [2] - Vanguard is reconsidering its stance on crypto ETFs under new CEO Salim Ramji, who has a background at BlackRock and recognizes the potential of cryptocurrency [3][4] - Vanguard's potential entry into Bitcoin ETFs could bring 500,000 new investors to the market if just 1% of its 50 million customers participate [4] - BlackRock has filed for a Bitcoin Premium Income ETF, which will utilize a covered-call strategy to generate yield on Bitcoin holdings [5] - BlackRock's Bitcoin and Ethereum ETFs are generating over $260 million in annual revenue, with $218 million from Bitcoin products and $42 million from Ethereum [6]