Squarepoint Quantitative Researcher Interview Experience — Probability Errors and Rejection

Squarepoint·Quantitative Researcher·Oct 2026
Technical ScreenRejectedeasy

The interview began with introductions and my resume, then moved to two probability problems.

For a question about three points lying within one semicircle, I used integration. An incorrect simplification left my answer off by a factor of two. When the interviewer requested a Monte Carlo simulation, I made another factor-of-two mistake.

The next question involved consecutive HH outcomes. I identified a Fibonacci-style recurrence, but an incorrect term led to the wrong result. The interviewer reacted positively, leaving me unsure whether the mistake had gone unnoticed or we were simply out of time. I was rejected afterward.

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Curated and edited by PracHub

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Interview at a glance

Company
Squarepoint
Role
Quantitative Researcher
Rounds
Technical Screen
Outcome
Rejected
Difficulty
easy
Interview date
Oct 2026
Questions from this interview
2 questions

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