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      Quantitative Research Intern Interview

      24 Oct 2021
      Anonymous interview candidate
      No offer
      Negative experience

      Other Quantitative Research Intern interview reviews for Optiver

      Intern Quantitative Research Interview

      12 Apr 2026
      Anonymous interview candidate
      No offer
      Positive experience
      Difficult interview
      Difficult interview

      Application

      I applied online. The process took 5 days. I interviewed at Optiver in Oct 2021

      Interview

      The first stage is composed of two online assessments on Zyvo. The first one is 80in8, a set of 80 multiple choice mental maths questions to be answered in 8 minutes. It's decently hard, and Zyvo doesn't offer a practice suite (you do have 2 practice questions to get used to the format though). Small note on 80in8, it may not be your run-of-the-mill maths test. Questions usually involve fractions and floating point numbers, you have 4 options, and no time limit for each question (how to pace yourself is up to you, just note that you can't skip and wrong answers detract points). I haven't found a good practice website with fractions, but for floating point numbers I recommend tradermaths.com. Don't really know why they need Quant Researchers to be good at mental maths, I assumed that was the Traders' area of expertise (and the testing website evidently does too, since it kept erroneously referring to my application as "Trader application"). Answered 57/80 questions, probably got around 5 wrong trying to answer quickly, so I estimate a score of 47, but Zyvo doesn't offer detailed reports so can't know for sure. Didn't pass to the second assessment.

      Interview questions [1]

      Question 1

      A) 4/8 - x = 1/48 B) 0.021 : 0.07 = x C) 5/8 : x = 5/7
      1 Answer

      Application

      I applied online. I interviewed at Optiver

      Interview

      The process is hard but exciting. The first online assessment contians bits of coding, quick game skills aswell as logic tests. Overall a good process, but very challenging. D d

      Quantitative Researcher Intern Interview

      9 Mar 2026
      Anonymous interview candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I interviewed at Optiver

      Interview

      OA is extremely difficult. Two medium questions and one hard question. Followed by lots of probability and statistics questions. Then logic questions. Finally the game, which is the easiest part.

      Interview questions [1]

      Question 1

      You are given two envelopes. One contains twice as much money as the other. You randomly pick one envelope and see $100 inside. Should you switch?
      Answer question

      Quantitative Researcher Intern Interview

      9 Oct 2025
      Anonymous employee
      Accepted offer
      Neutral experience
      Average interview

      Application

      I interviewed at Optiver

      Interview

      Online assessment, two HR rounds, one technical round with 3 questions (brain teaser, probability, guesstimates), a take home project and an interview about the project. Overall ok experience, but the online test was a bit intense

      Interview questions [1]

      Question 1

      how much revenue will Apple make while I drop a ball from the window until it lands
      Answer question
      1