(Bloomberg) -- An upstart ETF firm is debuting the first-ever funds tracking futures in Solana, the sixth-largest cryptocurrency, after the blockbuster success of Bitcoin products.Most Read from BloombergDespite Cost-Cutting Moves, Trump Plans to Remake DC in His StyleAmtrak CEO Departs Amid Threats of a Transit Funding PullbackNYC Plans for Flood Protection Without Federal FundsThe Scary Thing About the Wildfire That Was StoppedA Malibu Model for Residents on the Fire FrontlinesFlorida-based Vo