Science popularization article: The current DVOL volatility index of ETH is 70.78 (high volatility), the greed index is 34 (fear), and currently selling a call option of 2400 at the end of May, with a currency base of 2.25% and an annualized rate of about 13.7% 🤑， Expired price<; 2450 (break even point) is profit. I highly recommend holding ETH spot in a volatile market, selling inflated call options, and earning some pocket money