I remember the excitement in the market when BlackRock (NYSE: BLK) launched its U.S. spot exchange-traded fund (ETF) linked to Bitcoin (BTC) in January 2024. After all, the world's largest asset manager had decided to launch a Bitcoin product after much hesitation and the move had indicated Wall Street finally embracing cryptocurrency. Related: BlackRock reveals retail traders' next portfolio move More than two years have passed since then, and BlackRock's iShares Bitcoin Trust (Nasdaq: IBIT) has accumu ...