Ethereum (ETH) is experiencing strong bullish sentiment as traders focus on key price levels of $3,300 and $3,400. Significant purchases of ETH call options have been noted, with over $2 million in premiums invested since last night, indicating institutional optimism about future price movements. Prominent trader Yi Yuanshuai has reduced leverage after holding 100,000 ETH call options, securing $70 million from a $100 million position, signaling cautious profit-taking. Additionally, Deribit has launched a USDC interest-bearing product offering a 4% annual yield, which can be used as margin, surpassing the advantages of USDe products.