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Banks and Abu Dhabi Funds Report Larger Stakes in BlackRock’s Bitcoin ETF

Mid‑August 13F filings show growing use of IBIT by major banks and sovereign‑linked investors; Form 13F rules and option reporting can inflate headline share totals.

Overview

  • Form 13F disclosures made public in mid‑August show JPMorgan raised its IBIT position to about 17.8 million shares, roughly $650 million, and Morgan Stanley increased its IBIT holding to about 16.5 million shares.
  • UBS’s filing reported only a modest rise in direct IBIT shares to about 407,890 but showed calls covering 1.95 million underlying shares, meaning most of its headline increase reflects options not outright ETF share purchases.
  • Two Abu Dhabi vehicles, Mubadala and Al Warda, reported a combined holding near $764 million in IBIT, with share counts unchanged through Q2 even as dollar values fell with Bitcoin’s price.
  • Form 13F mechanics matter because they report long options as underlying share equivalents and aggregate related accounts, so the filings do not prove a firm’s corporate treasury bought physical ETF shares or reveal option strike, expiry, or premium.
  • IBIT remains the dominant U.S. spot Bitcoin ETF with about $47 billion in assets and is the primary regulated on‑ramp for institutions, a trend that could drive more ETF trading and greater use of derivatives for hedging and market making.