Volatility Shares, a US-based fund manager, has filed an application with the SEC for approval to launch a futures-based exchange-traded fund (ETF) based on Solana (SOL), according to Nate Geraci, CEO of ETF Store. The ETF will provide exposure to SOL futures with varying leverage, including 1x, 2x, and -1x. This move follows Volatility Shares' launch of the Volatility Shares 2x Ether Strategy ETF (ticker: ETHU) in June, an ETF based on Ethereum (ETH) futures. Eric Balchunas, a senior ETF analyst at Bloomberg, commented that the application for a SOL futures ETF "is probably a good sign for a possibility of getting a spot ETF." The potential approval of a Solana futures ETF could increase interest in the cryptocurrency and potentially lead to increased adoption and liquidity. The ETF would provide investors with an easy and regulated way to gain exposure to SOL without having to directly purchase and store the cryptocurrency.