Science popularization article: The current DVOL volatility index of BTC is 54. If a put option worth 90000 at the end of March is sold, the premium return rate is 4.45%, and the annualized return is about 35.4% 🤑。 If the delivery price drops below 90000, the boss can buy BTC and hoard coins at 90000; If it does not fall below, the income royalty is equivalent to 1 BTC of 0.0445 BTC royalty. This strategy is suitable for investors who hold coins and want to earn some profits, but also want to hoard coins at low prices 😊。@ DeribitExchange