REX Shares unveiled an exchange-traded fund on Friday that will try to turn price swings into weekly income for some of the U.S. market’s most volatile stocks, including crypto-focused companies. The product, dubbed the REX IncomeMax Option Strategy ETF, follows a hedge-fund style strategy to provide cash flow through option premium income, the company said in a statement. To that end, the ETF will have exposure to as many as 30 publicly traded firms, REX added. The ETF hasn’t made its first distribution ye ...