goettheOptions Tied to BlackRock’s Bitcoin ETF Surge to Nearly 50% of Deribit’s BTC Open Interest in Two MonthsGoetthe Crypto SphereJanuary 17, 2025 by Goetthe Crypto SphereJanuary 17, 202501Options linked to BlackRock's spot bitcoin ETF (IBIT) began trading on Nov. 19 and have since grown to half the size of Deribit's BTC options...