The largest block option for ETH today is: a certain boss buys a call option of 3000 at the end of March and sells a call option of 4000 during the same period, with a total of 3500 ETH on one side, paying a premium of 382000 US dollars This transaction is a reduction in position, which means the boss has closed the previous bear market call option spread. Recently, the volatility of IV has plummeted, and he shorted the volatility to take profits.