According to Greeks live, quarterly options expiring at the end of this month account for over 40% of total Bitcoin options open interest, with single contracts for the $75,000 call option making up more than 5%, hitting a record high concentration. The current BTC price is around $73,500, close to the critical strike price. If it breaks $75,000, it could trigger a Gamma-driven move, and the market's bull-bear battle may see a key direction emerge this week.