Quant interview prep guides

Market Making Correlation Interview Questions

Market making correlation interview questions for updating related markets, hedging exposures, and avoiding independence mistakes.

Candidates in multi-asset or related-event market-making games.

Correlation links markets

When two markets are related, information in one market can change fair value or risk in the other.

Do not assume independence

If two events are correlated, multiplying probabilities or treating quotes separately can produce bad markets.

Concrete example

If two event contracts depend on the same underlying driver, a signal that raises one probability may also raise the other.

Hedging depends on relationship strength

A related market can hedge some exposure, but weak or unstable correlation leaves residual risk.

Update cautiously

Correlation does not mean one-for-one movement. State the direction and rough strength of the relationship.

Common mistakes

Candidates often treat related markets as either identical or independent. Most interview cases live between those extremes.

Practice the pattern

Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.