Bitcoin options set to expire at the end of the month now account for over 40% of total open interest, with a significant concentration in the $75,000 call options, which alone represent more than 5% of the total. This marks a record high in concentration levels. Currently, Bitcoin is trading around $73,500, nearing this critical strike price. A breach of the $75,000 level could trigger a Gamma-driven market move, potentially setting the stage for a decisive market direction this week.