Quantitative Trader Interview Questions

1,133 quantitative trader interview questions shared by candidates

They asked me to find the optimal strategy in a finite sequential game where outcomes were determined by discrete probabilities that had to be inferred from the nature of the problem itself (no. of cards, numbers on cards, etc.). This problem involved maximizing a reward under uncertainty.
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Quantitative Trader

Interviewed at Jane Street

4.4
Dec 4, 2025

They asked me to find the optimal strategy in a finite sequential game where outcomes were determined by discrete probabilities that had to be inferred from the nature of the problem itself (no. of cards, numbers on cards, etc.). This problem involved maximizing a reward under uncertainty.

You stand in front of 5 doors and you can randomly pick one to open. One has a prize of $10000 while others have a punishment of $1000 each behind the door. Suppose now you are offered an option. With this option, you can randomly pick one door and see what behind the door. How much is this option worth?
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Summer Quantitative Trader

Interviewed at AKUNA CAPITAL

4
Dec 2, 2019

You stand in front of 5 doors and you can randomly pick one to open. One has a prize of $10000 while others have a punishment of $1000 each behind the door. Suppose now you are offered an option. With this option, you can randomly pick one door and see what behind the door. How much is this option worth?

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