According to ChainCatcher, Lin Chen, head of Asia Pacific business at Deribit, posted on a social platform that a user sold ETH call options and put options at 2,300 at the end of October, totaling 1,000 ETH, earning a premium of 424,000 US dollars. The price profit range for shorting volatility is 1,850-2,950, and the currency-based return is 17.25%.