Implied Volatility Surface Interview Guide
Implied volatility surface interview guide covering strikes, expiries, smile, term structure, interpolation, examples, and caveats.
Candidates explaining options prices across strikes and expiries.
The surface maps implied volatility
An implied volatility surface organizes option-implied volatilities across strike or moneyness and expiration, making option prices comparable.
It reflects market prices and constraints
The surface can include risk premia, supply-demand imbalance, event risk, tail demand, and no-arbitrage relationships between options.
Concrete example
A downside put can trade at higher implied volatility than an upside call if investors pay more for crash protection before stress.
Interpolation is practical risk
Traders often need values between quoted strikes and expiries, so interpolation and smoothing choices can affect greeks and valuation.
Common mistakes
Candidates often say implied volatility is the market forecast. It is an option price input that includes expectations and compensation for risk.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.