The Citadel Securities 2028 internship process runs in four stages, from the online application to the superday. This page covers each stage, when it opens and what the superday looks like, with every fact linked to its source.
Online application
Citadel Securities Quantitative Trader intern 2028 application guide
Online math test
Citadel Securities 2028 online assessment guide
Trader interviews (1 or 2)
Citadel Securities Quantitative Trader intern 2028 trader interview guide
Superday
Citadel Securities Quantitative Trader intern 2028 superday guide
The Citadel Securities process, stage by stage
Online application
One shared trading form, with a resume, education history and short questions.1
Application guideCitadel Securities Quantitative Trader intern 2028 application guideOnline math test
Usually a timed test on math, probability and statistics, about a week after applying; coding appeared in Oct 2025.3,4,5,6,7
Online assessment guideCitadel Securities 2028 online assessment guideTrader interviews (1 or 2)
Phone or video interviews of about 45 minutes with a trader: probability, expected value, market making and your resume.3,5,6,8
Interview guideCitadel Securities Quantitative Trader intern 2028 trader interview guideSuperday
An in-person superday weighted toward market making, on a solid base of math and statistics.6
Superday guideCitadel Securities Quantitative Trader intern 2028 superday guideOffer
A decision about a week after the final round in late 2025, then two summer rotations ahead of full-time placement.1,7
Key facts
- When it opens: The US postings were online by Jul 16, 2025 (summer 2026) and by Jul 6, 2026 (summer 2027), so expect summer 2028 around early July 2027.7
- Documents: A resume (.docx, .doc, .pdf or .txt, up to 10MB), an education history with your GPA and its scale, and short questions. The US form has no cover letter or transcript field.1
- Superday: A Chicago trading intern superday in Mar 2021 had three traders, and a New York quantitative trader's virtual onsite in late 2025 had several 30- to 45-minute rounds. The firm's quant research onsite is usually three to five 60-minute interviews.2,7,9
- What the superday tests: Weighted toward market making, on a solid base of math and statistics, with brainteasers along the way.6,7
Citadel Securities programs on the tracker
Live from the Intervyo tracker, so the dates update as Citadel Securities posts them.
- 2028 Summer Analyst Program
- Opens Oct 5
- 2028 Full-Time Analyst Program
- Dates not announced yet
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Other firms
Sources
Firm pages first, then the other sources the stage guides cite. Last checked Nov 4, 2026.
- 1Citadel Securities: Quantitative Trader - Intern (US) (Trading and Research), posting and application form
- 2Citadel Securities: Our Campus Quantitative Research Interview Process (Nov 2024)
- 3Candidate report on a public forum: Quant Trader Internship interview, New York (Aug 2022)
- 4Candidate report on a public forum: Quant Trader Intern interview, New York (Aug 2024)
- 5Candidate report on a public forum: Quant Trading Intern interview, New York (Aug 2024)
- 6Candidate report on a public forum: Quant Trader Intern interview, New York (Oct 2025)
- 7Trading Interview: Citadel Securities Internship 2027: Pay, Roles And Interview Process · prep site
- 8Candidate report on a public forum: Trading interview, New York (Aug 2026)
- 9Candidate report on a public forum: Trading Intern interview, Chicago (Mar 2021)
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