Blackrock's spot Bitcoin ETF, IBIT, becomes the most successful ETF launch in over 10 years.IBIT received $418.8 million in net flows on December 16, surpassing approximately 2,850 other ETFs.Since its launch, IBIT has accumulated $36.3 billion in positive net flows, surpassing US-traded spot Bitcoin ETFs.IBIT holds the record for the largest daily inflow among Bitcoin ETFs, capturing over $1.1 billion in a single day.