
Citadel Trader Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 30 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Citadel.
Trader
It was a 3 round process, pretty chill difficulty. Mostly probability, brain teasers, and some basic arithmetic stuff. If you've done even a little prep, you should be fine, but definitely need to practice specific types of questions. Check Glassdoor, reddit, etc. for more insights.
- Could you introduce yourself?
- Questions about basic expected value.
Trader
The interview process involved a lot of brainteasers and statistics questions, plus various questions to test your quick thinking and estimation skills. It was an enjoyable process overall, but it was really long and drawn out. You should be prepared to work very hard if you get an offer.
- What is your favorite part about trading?
Trader
I went through the interview process for a Trader intern position in Hong Kong. It was a good experience. The trader I spoke with was really nice. He asked me questions about a market making game, the populations of the US, India, and other places, the price of Google given volatility, and a poker game.
- Can you describe a market making game?
- What are the populations of the US, India, and other places?
- What is the price of Google given volatility?
Citadel Trader Interview Questions
Quoted word for word from Citadel interview reports.
“What's the probability of getting two ones in a row in a random binary string of length n?”
Read reports →“What is the probability of being dealt three of a kind in Texas Hold'em?”
Read reports →“If you toss a fair coin, what's the expected number of tosses needed to get two heads consecutively?”
Read reports →“Given two pancakes, one burnt on both sides and one burnt on one side, if I randomly pick a pancake and then randomly pick a side that is burnt, what's the probability I picked the double-burnt pancake?”
Read reports →“What are the populations of the US, India, and other places?”
Read report →“What is the price of Google given volatility?”
Read report →“How would you calculate the square root of a number up to a specific decimal place?”
Read report →“What would be the bid-ask spread if the coin was flipped 10,000 times?”
Read report →“Regarding options, how would you construct a position that profits from increasing volatility and decreasing time decay?”
Read report →Formats, difficulty and experience
Across all 30 Citadel interview reports.