Citadel Securities Trader Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 40 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Citadel Securities.
Citadel Securities
Trader
Entry Difficult Neutral experience No offer 1 round
Interview process
Technical screen
Interview formats
Technical Coding
First round was a trader interview. Started with self-introduction, then tackled probability problems for about 40 minutes. These were pretty tough, so definitely brush up on stats and math beforehand.
Confirmed questions2 questions
- Could you solve some probability problems for 40 minutes? (stats and math)
- What would you say about a poker game with 6 cards?
Citadel Securities
Trader
Senior Average Positive experience No offer 1 round
Interview process
Recruiter call Technical screen
Interview formats
Technical Behavioral
I had a one hour call with one of the senior traders. We talked about my past trading experience, then they asked me some trading questions and about the role at Citadel. There were also some technical brainteasers.
Confirmed questions4 questions
- Could you outline the distinctions between exchanges, dark pools, ATVs, and SIs within the European equity market?
- Can you tell me about your previous trading experience?
- What does the role at Citadel entail?
Citadel Securities
Trader
Mid Average Neutral experience No offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Behavioral Technical Case Coding Presentation
The interview process started with an HR screening. This was followed by an interview with a junior trader on the fixed income desk, where we talked about my projects, current market events, but no technical or math questions. The final round involved virtual on-site interviews with three senior members of the desk. The first senior interview covered statistics, a puzzle, a deep dive into one of my projects, and the yield curve. The second interviewer was late, and when he arrived, we immediately discussed options. He provided Tesla's current trading details and asked for estimates for calls and puts, also discussing how strike price changes impact option pricing. The third interview was with a quant. It began with deriving the Black-Scholes model, but due to camera and codepad issues, I had to describe the steps for a couple of coding questions, including a greedy algorithm problem. I was disappointed not to get an offer, especially since the first interview went well and the last two were hampered by technical difficulties and lateness.
Confirmed questions2 questions
- What is the price of a Tesla call with a specific strike and expiry?
- I had mentioned Tesla in my cover letter.
Citadel Securities Trader Interview Questions
Quoted word for word from Citadel Securities interview reports.
“What is the expected number of dice rolls until each number appears twice?”
Read reports →“What is the expected number of dice rolls needed to get two sixes consecutively?”
Read reports →“What is the limit of exponentiation of a matrix?”
Read reports →“What is the square root of 800, rounded to two decimal places?”
Read reports →“If you have a horse race, what is the minimum number of races you need to run to determine the first-place winner?”
Read report →“What is the price of a Tesla call with a specific strike and expiry?”
Read report →“How many cards until you get the first ace?”
Read report →“If we have constraints on the correlation between three random variables, how would you bound the correlation between any two of them?”
Read report →“What would you say about a poker game with 6 cards?”
Read report →Formats, difficulty and experience
Across all 40 Citadel Securities interview reports.