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What Is a ‘Volatility Arbitrage’ Strategy Based on the IV/HV Relationship?

Volatility arbitrage involves taking a position based on the expectation that the difference between IV and HV will narrow. If IV > HV, a trader might sell options (short volatility) expecting IV to drop.

If IV < HV, a trader might buy options (long volatility) expecting IV to rise.

Define “Latency Arbitrage” and How It Exploits Changes in the Top of the Book
How Is Historical Volatility Typically Annualized for Comparison with Implied Volatility?
When IV Is Significantly Higher than HV, What Does This Suggest about the Market's Sentiment?
What Is the Difference between Buying a Put Option and Selling a Call Option in a Bearish Strategy?