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Quantitative Research Internship Interview Questions

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You will receive three coding questions. Based on my experience, it's very likely to be the same question as the previous year. You may google something like Order Book Matching Simulation. Coding is not the hardest part. IMO, their math question is more challenging. You only have about 90 seconds for each probability question (multiple-choice question). Calculating the exact value is impossible for many of these due to the time constraint; you need to find a good way to approximate it.
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Quantitative Researcher

Interviewed at Optiver

3.7★
Dec 13, 2025

You will receive three coding questions. Based on my experience, it's very likely to be the same question as the previous year. You may google something like Order Book Matching Simulation. Coding is not the hardest part. IMO, their math question is more challenging. You only have about 90 seconds for each probability question (multiple-choice question). Calculating the exact value is impossible for many of these due to the time constraint; you need to find a good way to approximate it.

Markov and coin tosses questions. Probability that a table with 3 legs places randomly on a circle doesn't fall. Questions about what would happens if features were correleated, why this model not another one, why this hyperparameter. difference ridge vs lasso. difference supervised vs unsupervised
avatar

Graduate Quantitative Researcher

Interviewed at Optiver

3.7★
Jan 9, 2026

Markov and coin tosses questions. Probability that a table with 3 legs places randomly on a circle doesn't fall. Questions about what would happens if features were correleated, why this model not another one, why this hyperparameter. difference ridge vs lasso. difference supervised vs unsupervised

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