Understanding Implied Volatility

Implied Volatility is a metric that captures the market's expectation of the magnitude of future price movements for an underlying asset. Unlike Historical Volatility (which looks at what *did* happen), Implied Volatility looks at what the market thinks will happen.

Think of IV as a percentage. If a stock has an IV of 20%, the market is pricing in a 20% expected move over the next year. Higher IV means the market expects larger price swings, leading to more expensive options.

A common mistake is thinking an option is "cheap" because its premium is ₹10. If the stock is in a period of extreme calm (Low IV), that ₹10 might actually be very expensive relative to the risk. Conversely, an option costing ₹50 might be "cheap" if the stock is in a period of extreme anticipated turbulence (High IV).

Rule of Thumb: Always check the "IV Rank" or "IV Percentile" in your trading platform. This tells you if current volatility is high or low compared to the last 12 months.

• High IV Environment: Options are expensive. Sellers are rewarded (collecting high premiums), and buyers are at risk of IV Crush (the premium collapsing as volatility returns to normal).
• Low IV Environment: Options are "cheap." Buyers are rewarded if the stock suddenly moves (IV Expansion), as the value of the option will increase due to both the price move and the rise in volatility.