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.

What Is the Difference between Expected Price, Executed Price, and Market Price in a Trade?
What Is a Common High-Frequency Trading (HFT) Strategy That Exploits Market Data Feed Speed Differences?
What Is a Common Options Spread Strategy That Involves Selling OTM Options?
How Does the Margin Requirement Differ for Buying versus Selling Options?
Can You Combine Options to Create a Strategy with a Risk Profile Similar to Short Selling?
How Is Historical Volatility Typically Annualized for Comparison with Implied Volatility?
What Is ‘Synthetic Short Selling’ Using Futures and How Is It Used in Arbitrage?
Define “Latency Arbitrage” and How It Exploits Changes in the Top of the Book