美国银行将贝莱德（BlackRock）比特币ETF持仓增至约3700万美元，回到Q1水平

The claim is strongly supported by the official SEC FORM 13-F Information Table filing for Bank of America (CIK 70858, filed 2026-05-15), which is the authoritative primary regulatory source. Multiple independent secondary sources — including Odaily, PANewsLab, TechFlow, and the Fintel institutional tracker — all consistently report the same specific figures: 972,590 IBIT shares valued at approximately $37 million (a ~35% increase from 719,008 shares in the prior quarter), and a total crypto ETF exposure of approximately $53 million spanning Bitcoin, Ethereum, XRP, and Solana ETFs. The Fintel tracker independently cross-references the 13F data and confirms the IBIT share count and dollar value. The claim's description of IBIT as Bank of America's 'largest disclosed crypto ETF position' is accurate. The only minor nuance is that the $53 million total includes multiple Bitcoin ETFs beyond just IBIT (e.g., Bitwise BITB, Grayscale Mini, Fidelity FBTC), not solely BlackRock's product — but this is consistent with the claim's wording. No conflicting evidence was found.