UBS Group's (UBS) latest regulatory filings show that its call option exposure related to BlackRock iShares Bitcoin Trust (IBIT) increased by over 24 times quarter-over-quarter in the second quarter, while its direct holdings of IBIT shares also grew by 12% to 407,890 shares. Additionally, UBS's IBIT put option exposure decreased by approximately 53% to 143,300 shares. UBS Group manages over $7 trillion in assets.