The Bitcoin (BTC) exchange-traded fund (ETF) launched and managed by BlackRock, the world's largest asset manager, is generating more revenue than its flagship fund that tracks the S&P 500 index. This is a strong sign of the growing appetite for BTC.

According to Bloomberg data, the iShares Bitcoin Trust ETF (IBIT) has generated an estimated $187.2 million in annual fee revenue . That figure slightly exceeds the $187.1 million generated by the iShares Core S&P 500 ETF (IVV), BlackRock's long-standing fund that tracks the performance of the top 500 U.S. companies.

The difference is even more striking when you consider that IBIT manages approximately USD 75 billion in assets, while IVV manages almost nine times more: USD 624 billion. The key lies, in part, in the fee structure: the Bitcoin ETF charges a fee of 0.25%, while the S&P 500 fund only charges 0.03%.

The iShares Bitcoin Trust has attracted net inflows in 17 of the last 18 months, reflecting sustained demand. The fund currently represents more than 55% of all assets invested in Bitcoin ETFs.

This strong performance of the leading Bitcoin ETF signals a growing interest in the digital currency. As CriptoNoticias has reported, this is also evident in the direct purchases of BTC being made by corporate giants.