longbridge-volatility-strategy Computes 20-day and 60-day historical volatility (HV) for a stock, ranks the current level as a percentile over the trailing year, identifies the vol regime (low / normal / high), and recommends a corresponding options strategy. Response language : match the user's input language — Simplified Chinese / Traditional Chinese / English. When to use - User asks about vol regime, whether volatility is cheap or expensive, or which options strategy suits current conditions. - Triggers: "波动率策略 TSLA", "NVDA 历史波动率分位", "volatility percentile AAPL", "低波动率买跨式", "high volatili…