21Shares, a digital asset management company, has filed with the Securities Exchange Commission to launch a spot Dogecoin exchange-traded fund, following similar filings by rivals Bitwise and Grayscale, according to Bloomberg analyst James Seyffart. The 21Shares Dogecoin ETF will attempt to track the price of memecoin Dogecoin. Houseof Doge, a Dogecoin Foundation unit, plans to assist 21Shares in marketing the fund, according to the company's Form S-1 registration statement filed on April 9.