Rex-Osprey’s DOJE, the first U.S. spot Dogecoin ETF, produced strong trading volumes when it hit the market on Thursday, landing in the top five for ETF rollouts so far this year. And its issuer has already filed for a riskier, leveraged play on it.  In a filing registered with the SEC on Thursday, Rex-Osprey applied to launch the REX DOJE Growth & Income ETF, an exchange traded product that aims to offer between 105-150% exposure to the price return of DOJE on a single day. “Because the fund seeks daily le ...