Are there any ETFs that track bitcoin and crypto currencies?
As a financial market observer, I'm curious to know if there are any Exchange-Traded Funds (ETFs) available that specifically track Bitcoin and other cryptocurrencies. Given the significant rise in popularity and market capitalization of these digital assets, it would seem logical that there would be investment vehicles designed to provide investors with a diversified exposure to this emerging asset class. Could you elaborate on the availability and performance of any such ETFs, as well as any potential risks or limitations investors should be aware of?