21Shares, a prominent issuer of cryptocurrency Exchange Traded Products (ETPs), has filed applications with the U.S. Securities and Exchange Commission (SEC) for two new cryptocurrency index ETFs. This move signals a growing interest in offering diversified cryptocurrency investment options to U.S. investors. The proposed ETFs are the 21Shares FTSE Crypto 10 Index ETF and the 21Shares FTSE Crypto 10 ex-BTC Index ETF. The former aims to track the performance of the top 10 cryptocurrencies by market capitalization, providing broad exposure to the leading digital assets. The latter offers a similar investment strategy but excludes Bitcoin (BTC), allowing investors to focus on alternative cryptocurrencies or "altcoins." These ETFs, if approved, could offer a convenient and regulated way for investors to gain exposure to a basket of cryptocurrencies without directly managing individual digital assets. The FTSE Russell indices provide a recognized and transparent benchmark for the ETFs' performance. The SEC's decision on these applications will be closely watched by the cryptocurrency and investment communities. ```