Quant Finance Glossary

Essential concepts for quant trading, research, and interviews — explained clearly.

40

Concepts

7

Categories

6 concepts

Probability & StatisticsIntermediate

Monte Carlo Simulation

Monte Carlo simulation uses repeated random sampling to model the probability of different outcomes in complex systems, making it essential for derivatives pricing, risk analysis, and strategy evaluation.

11 min read
Probability & StatisticsBeginner

Expected Value

Expected value is the probability-weighted average of all possible outcomes of a random variable, forming the mathematical foundation for every rational trading and betting decision.

7 min read
Probability & StatisticsBeginner

Bayes' Theorem

Bayes' theorem provides a mathematical framework for updating the probability of a hypothesis as new evidence becomes available, making it central to both quant interviews and trading decision-making.

8 min read
Probability & StatisticsBeginner

Conditional Probability

Conditional probability is the probability of an event occurring given that another event has already occurred, forming the basis for Bayesian reasoning and many quant interview questions.

7 min read
Probability & StatisticsBeginner

Normal Distribution

The normal (Gaussian) distribution is the bell-shaped probability distribution that appears throughout statistics, finance, and natural science, characterized by its mean and standard deviation.

8 min read
Probability & StatisticsBeginner

Law of Large Numbers

The Law of Large Numbers states that as the number of trials increases, the sample average converges to the expected value — the mathematical justification for why systematic trading works.

6 min read

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