What are the BlackRock & Fidelity bitcoin ETFs?
Can you explain what the BlackRock and Fidelity Bitcoin ETFs are, and what sets them apart from other investment options in the cryptocurrency space? Are these ETFs specifically designed to track the price of bitcoin, and if so, how do they do it? What are the potential risks and benefits associated with investing in these ETFs, and how do they compare to directly owning bitcoin or other cryptocurrencies?