The U.S. Securities and Exchange Commission rejected a proposal from Grayscale Investing that would turn their Bitcoin trust into an exchange-traded fund (ETF). If accepted, this would have been the first Bitcoin ETF. However, the SEC determined that the listing plan did not sufficiently prevent fraud or manipulation.Also on the 29th, the SEC rejected an application from Bitwise to create a Bitcoin exchange-traded product (ETP).Grayscale immediately announced they would be suing the SEC, a course of action they’d been suggesting for several months. Don’t hold your breath, though — a litigation analyst estimated such a lawsuit would take 12–18 months to reach resolution.