According to Blofin, 24 hours before the FOMC meeting, the baseline scenario is a slow decline in inflation and growth, with low risk of recession. Recently, risk assets such as commodities and stocks have generally experienced a pullback, indicating an increase in risk aversion at the macro level. Influenced by risk aversion sentiment, $BTC's short-term skew remains negative, and the rise of the butterfly index further indicates investors' concerns about recent risks. There is a significant negative gamma between $65,000 and $70,000, exacerbating price fluctuations. This negative gamma is mainly caused by options expiring on August 2nd. As the expiration date approaches, market price volatility may intensify.