Trainee Trader Interview Questions

8,648 trainee trader interview questions shared by candidates

Best of 7 game series between two teams, A and B. You get even odds on both teams for each game and you have to work out how much to bet on each game so that you win $100 if A wins the series and lose $100 if B wins the series and specifically how much you bet on the first game.
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Assistant Trader

Interviewed at Jane Street

4.4
Mar 5, 2013

Best of 7 game series between two teams, A and B. You get even odds on both teams for each game and you have to work out how much to bet on each game so that you win $100 if A wins the series and lose $100 if B wins the series and specifically how much you bet on the first game.

A survey is given to all passengers on a number of different planes. The survey asks each person how full their plane was. The people answer honestly. If 50% of people claim that their plane was 80% full, while the other 50% claim that their plane was 20% full, how full was the average plane?
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Assistant Trader Summer Internship

Interviewed at Jane Street

4.4
Feb 17, 2014

A survey is given to all passengers on a number of different planes. The survey asks each person how full their plane was. The people answer honestly. If 50% of people claim that their plane was 80% full, while the other 50% claim that their plane was 20% full, how full was the average plane?

The first three questions are mental math. I still remember the hardest one is calculating the 39% of 569 without any pen or paper. The next question is a simple probability: pick 2 cards from a set of poker without 2 Jokers, what is the probability that both cards are Ks. The last one is brain teaser: what is the angle between the minute hand and hour hand on a clock when 9:30.
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Trader Intern

Interviewed at Jane Street

4.4
Apr 12, 2014

The first three questions are mental math. I still remember the hardest one is calculating the 39% of 569 without any pen or paper. The next question is a simple probability: pick 2 cards from a set of poker without 2 Jokers, what is the probability that both cards are Ks. The last one is brain teaser: what is the angle between the minute hand and hour hand on a clock when 9:30.

1. Quick math, answering as much as you can within time limit like 37-65.2 2. Personality check, 185 questions in all 3. Behavioral questions, quick math again, and simple probability calculation (expected value of a game)
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Junior Trader

Interviewed at AKUNA CAPITAL

4
Oct 1, 2015

1. Quick math, answering as much as you can within time limit like 37-65.2 2. Personality check, 185 questions in all 3. Behavioral questions, quick math again, and simple probability calculation (expected value of a game)

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