An Ethereum holder has realized a significant profit after selling 50 ETH, achieving a nearly 10,000x return. According to Arkham data, the address, which begins with 0xe75c, originally purchased ETH for $30 in 2015. After holding the assets unchanged for a decade, the current value of the holdings reached $295,000. Earlier this week, the holder sold $95,000 worth of ETH, marking a substantial gain from the initial investment.