Greeks live said that options delivery data on November 15 showed that 39,000 BTC options expired, with a Put Call Ratio of 0.84, the biggest pain point was US$80,000, and a nominal value of US$3.4 billion; 189,000 ETH options expired, with a Put Call Ratio of 0.84. The Ratio is 0.92, the maximum pain point is $3,000, and the nominal value is $580 million. About 10% of positions expired this week, short-term volatility caused a significant increase in option implied volatility (IV), and mainstream term option at-the-money IV remained stable.