According to Bitcoin News, the annual management fee revenue generated by BlackRock's iShares Bitcoin ETF "IBIT" has surpassed its flagship product, the S&P 500 Index ETF "IVV". Although IBIT has only been established for 18 months and its asset management scale (AUM) is much smaller than IVV ($75 billion vs $609 billion), its annual management fee revenue has reached $186 million, surpassing IVV's $183 million.