📚 Science popularization article: The current BTC DVOL volatility index is 53.48. If you sell a put option worth 75000 yuan at the end of May, the yield of the currency standard is 4.2%, and the annualized return is about 25.55% 🤑。 If the BTC price exceeds 75000 yuan upon expiration, the royalty can be directly earned; If it falls below 75000, buying BTC at that price is equivalent to hoarding at a low price.