UBS call options on IBIT jump 24-fold
UBS's bullish IBIT call exposure surged from 80,000 to 1.95 million underlying shares in one quarter.
UBS disclosed a more than 24-fold jump in call option exposure tied to BlackRock's iShares Bitcoin Trust, from 80,000 underlying shares at the end of March to 1.95 million by June 30. The bank also grew its direct IBIT stake 12% and cut its bearish put exposure by roughly half over the same quarter.
The numbers behind the filing
The 13F shows UBS holding 407,890 IBIT shares worth about $13.6 million as of June 30, up from 364,371 shares three months earlier, according to CoinDesk. That direct position still sits below the 548,614 shares UBS reported at the end of 2025. Put option exposure fell to 143,300 underlying shares from 303,300, a 53% drop. The filing carries no strike prices or expiration dates, so there's no way to read UBS's actual net directional bet from the numbers alone. It could be client hedging, dealer market-making, discretionary portfolios, or the bank's own book. UBS manages over $7 trillion in assets, so even a position this size is a rounding error relative to the firm, but the shift in ratio between calls and puts is the clearest directional signal in the disclosure.
What a bank's options book actually tells you
A 24-fold jump reads as conviction until you remember what a 13F actually captures. It's a snapshot of reported positions, not a strategy memo, and UBS isn't obligated to say whether this is proprietary risk-taking or plumbing for client demand. The bank started building out bitcoin and ether access for private banking clients in Switzerland earlier this year, and rising call exposure alongside falling put exposure lines up neatly with a private bank building inventory to meet client buy orders rather than making a top-down call on price. That's a more boring explanation than "UBS turns bullish on bitcoin," but it's also the one that fits a Swiss wealth manager whose business model is fee income on client assets, not proprietary trading gains. The real signal isn't UBS's view on bitcoin. It's that a bank this size now needs enough IBIT options inventory to serve clients who are asking for it, and that inventory need scaled 24-fold in three months.
One thing to watch
The next 13F, due in November, will show whether this was a one-quarter build tied to launching Swiss client access or the start of a sustained position. A continued rise in calls alongside continued declines in puts would support the client-demand read; a reversal back toward puts would suggest this was a hedge against something else entirely.