Science popularization article: The current DVOL volatility index of ETH is 67.26, and the greed index is 71 (greed). Currently, selling a call option of 4000 at the end of March has a yield of 3.7% on the premium (currency standard), with an annualized yield of about 22.5% 🤑， The premium is about 10.46%, and the due price is less than or equal to; 4150 (break even point) is profit. If the price exceeds 4000 at maturity, the boss can also sell at that price to lock in profits@ DeribitExchange