The cryptocurrency market has grown more optimistic that U.S. securities regulators may approve an exchange-traded fund (ETF) that invests directly in Ethereum, Bloomberg reported.

If an equivalent Ethereum fund is approved, it will be easier for retail investors to trade the top two cryptocurrencies. Ethereum is the most widely used commercial blockchain, and its native token, Ether, allows investors to earn passive income by locking up tokens.

ETFs are very popular in the U.S. because they make investing simple. The launch of Bitcoin ETFs was considered a breakthrough because they actually hold Bitcoin, rather than investing in Bitcoin futures.