The first-ever Ethereum (CRYPTO: ETH) spot ETFs have been greenlighted by the SEC and are set to begin trading tomorrow morning. Interestingly, two relatively lesser-known Ethereum-branded coins seem to have outperformed the marquee asset in 24-hour gains. What Happened: Ethereum Name Service popped more than 5%, emerging as the best-performing cryptocurrency in the last 24 hours. The coin’s trading volume jumped 66% to $191 million, signaling significant buying activity. Similarly, Ethereum Classic popped 3% to hit a monthly high. ETC’s trading volume nearly exploded 184% to $452 million in t…