Bitcoin has recently retested the $75,000 strike price, a significant level previously associated with nearly $8 billion in short Gamma positions. This pressure had driven Bitcoin's price down to approximately $72,500 before the expiration of these options. Following the completion of today's large-scale options expiration, the market's Gamma structure is beginning to rebuild. During Bitcoin's decline, at-the-money (ATM) implied volatility (IV) temporarily rose, with the 1-week IV spiking above 35% before retracting to around 32%. Long-term IV also decreased, suggesting the market perceives this volatility as a controlled correction. Over the past week, the net options buying and selling structure was nearly balanced, with long call and long put positions each making up about 25%, indicating no clear directional bias in the market after the recent pullback.