波动率与期权

Group 1 - The article emphasizes the importance of understanding volatility in options trading, highlighting that a precise grasp of volatility is key to improving trading success rates [1][2] - It distinguishes between price fluctuations and volatility itself, explaining that price fluctuations are actual market movements, while volatility measures the intensity of these movements [1][2] - The concept of volatility has evolved from traditional commodity trading, where price changes were the main focus, to a critical variable in options pricing models [2][3] Group 2 - Historical volatility is defined as the standard deviation of price changes over a specific period, often annualized for practical use, and serves as a reference for predicting future volatility [3][5] - Implied volatility, in contrast, reflects market participants' expectations of future price fluctuations and is derived from observed market prices, acting as a gauge of market sentiment [4][5] - The relationship between historical and implied volatility is significant, as changes in one can influence the other, indicating potential future price movements [5]