The iShares Bitcoin Trust (IBIT) has emerged as a dominant force in the Bitcoin ETF and options market, according to a report by Analyst James Check and Unchained. Since its launch in January 2024, IBIT has attracted $61 billion in net inflows over 18 months, significantly boosted by the introduction of ETF options in November 2024. IBIT now controls 57.5% of all Bitcoin ETF assets under management, with $32.8 billion in inflows since options trading began. The report highlights that while IBIT has seen substantial growth, its competitors have experienced flat growth. Additionally, the options market has become the leading derivatives instrument, with over $90 billion in open interest, reshaping Bitcoin's volatility profile.