UBS Group’s latest 13F filing with the U.S. Securities and Exchange Commission showed a steep rise in its call option exposure to BlackRock’s iShares Bitcoin Trust (IBIT), with the position increasing from about 80,000 shares to 1.95 million shares in a single quarter. The filing also showed that UBS increased its direct IBIT holdings by 12% over the same period, while its put option position fell 53%.
The report also stressed that 13F filings have clear limits and should not be read in isolation. These disclosures show purchased options but not written ones, do not clarify whether positions belong to the bank itself or to client accounts, and provide no detail on the purpose of the trades. A position could reflect hedging activity or market-making rather than a straightforward directional bet. On that basis, the report said investors should be careful when interpreting the filing and avoid drawing conclusions from incomplete data alone.
UBS Group’s latest 13F filing with the U.S. Securities and Exchange Commission showed that its call option position tied to BlackRock’s iShares Bitcoin Trust (IBIT) rose from about 80,000 shares to 1.95 million shares in a single quarter, a jump of more than 24 times.
The same filing showed that UBS increased its direct IBIT holdings by 12% during the period, while its put option position declined 53%.
13F disclosures show only part of the picture
The report said filings of this type come with several limits. A 13F discloses purchased option positions, but not written ones. It also does not show whether the holdings belong to the bank itself or to client funds.
The filing also does not explain why the positions were established. The report noted that such exposure could be tied to hedging or market-making activity. Because of those constraints, the institution said investors should be cautious when reading the data and avoid being misled by one-sided figures alone.
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