[BlackRock IBIT Becomes the World's Largest Bitcoin Options Trading Platform] On September 30, according to Bloomberg, BlackRock's iShares Bitcoin Trust (IBIT) has surpassed Deribit to become the world's largest Bitcoin options trading venue. After last Friday's contract expiration, IBIT-related options open interest reached $38 billion, exceeding Deribit's $32 billion. Deribit has dominated the market since its establishment in 2016, and this shift marks a significant move of the digital asset trading focus toward Wall Street.