This Thursday, the 29th, at 3:00 AM, the Fed will announce its latest interest rate decision. Coupled with recent international uncertainties and Bitcoin's continued decline, implied volatility in short- and medium-term options has seen a significant increase. BTC's short-term implied volatility has exceeded 45%, ETH's short-term implied volatility has reached 63%, and SOL's short-term implied volatility has also surpassed 60%. One-week options have risen by more than 10% compared to the same time last week. However, the market is almost unanimously expecting no rate cuts in this decision, with a high likelihood of maintaining the status quo until the end of the month. Over a quarter of options positions are set to expire in January, and by then, the probability of implied volatility falling is quite high. All in all, now is a great opportunity to sell short-term options, and even double selling could be a good choice.