According to information released by Deribit officials, in today's BTC bulk options trading, a user paid $3.617 million to sell 65,000 call options at the end of June, and bought 100,000 call options at the end of March next year, a total of 250 BTC. According to the official explanation, such an operation is a common strategy in the near future, short-term bearish long-term bullish, using the rights obtained by selling options to lower the cost of purchasing forward options, and doing some hedging to reduce risk.