Lin Chen, head of Asia Pacific commerce at Deribit, wrote on the X platform that today's largest BTC bulk option: a user bought a call option of $65,000 at the end of the year + sold a call option of $100,000 at the end of the year, a total of 413 BTC, and paid the premium of $3.627 million. Long-term bullish, through the bull market spread strategy of one buy and one sell, reduces the cost (plus leverage) and goes long, as long as the price at expiration is higher than 75,000 (break-even point).