In a landmark development, the SEC has approved the commencement of trading for spot Ethereum (CRYPTO: ETF) exchange-traded funds Monday, exposing mainstream investors to the price moves of the world’s second-largest cryptocurrency. What Happened: Bloomberg senior ETF analyst Eric Balchunas confirmed the news, as the 424(b) forms are now available on the SEC site, meaning the regulator has cleared them for trading from tomorrow. The SEC has given its approval to registration forms from 21Shares, Bitwise, BlackRock, Fidelity, Franklin Templeton, VanEck and Invesco Galaxy. The only funds that do…