Quantitative trading analyst Interview Questions | Glassdoor

# Quantitative trading analyst Interview Questions

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quantitative trading analyst interview questions shared by candidates

## Top Interview Questions

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Oct 13, 2011
 You have 5 unknown numbers. There are 10 options in selecting two out of these five. Sum each of those two together, thus you have 10 numbers. You're given these, find the original 5 numbers. 5 AnswersSuppose - x1+x2= a1, x1+x3=a2, ..., x4+x5=a10. A = a1+...a10. x1+x2+x3+x4+x5 = A/4. x1 = A/4-a5-a10. x2 = A/4-a2-a10. x3 = A/4-a1-a10. x4 = A/4-a1-a9. x5 = A/4-a1-aa8.Note that a+b=c+d. So the ten sums can be paired up into groups of 2 (of course, it may be possible to group say 4 together in case two of the original numbers are the same... but we will be content with pairing in twos to get a final list of 5 numbers even if that contains repetitions. Suppose the numbers we have now are a1, a2, a3, a4 and a5. And suppose the original numbers are x1, x2, ... x5. Then sum of x's = sum of a's./2. Call this S. S - 2ai will give the original x's.This is a Gaussian equation is it not?Show More Responsesthe problem is that you don't know which sum comes from which two. First, easily you can get x1+x2+x3+x4+x5=A (suppose x1<=x2<=x3<=x4<=x5) Then sort the ten numbers, A-(the smallest sum)-(the largest sum)=x3 pick the next smallest sum, you know it is x1+x3, you can then get x1,x2 pick the next largest sum, you know it is x3+x5, you can then get x4, x5If numbers are a,b,c,d,e in order, you can know a+b,a+c,d+e,c+e, and a+b+c+d+e which is enough

Oct 2, 2019

### Sales Trading and Quantitative Analysis Summer Analyst at Citi was asked...

Dec 1, 2014
 what is the square root of 64,000?3 Answersdon't say 80.Wrong Above~ The point is to get the answer without a calculator! The fairly easy way is to use Newton's method or Taylor expansion to get sqrt(10). One or more comments have been removed. Please see our Community Guidelines or Terms of Service for more information.

### Quantitative Analyst, Algorithmic Trading at IMC Trading was asked...

Oct 2, 2015
 What is one problem in real life? How can it be fixed by an algorithm.?1 AnswerDebt. Assets = Liabilities + Stockholder's Equity

### Quantitative Trading at RBC was asked...

Oct 20, 2017
 Find North Korea on a map. 1 Answerlmao why would they ask anyone to find North Korea on a map

### Quantitative Trade Analyst at Special Counsel was asked...

Apr 6, 2018
 Why do you want to leave your current job, Are you Ok with the international travel (2 weeks away at a time, unpredictable travel). 1 AnswerWhat concerned me about the travel is the quant usually does not travel unless they are participating in marketing/sales activities. She said the quant would travel to the client site to use company-confidential data to perform the analysis. In her email to me, she said some of the previous travel was to Russia and Spain. This sounded strange give that Russia is not a US ally. It sounded a little too much like an issue related to president of the US. Also, if you work on the international site, you don't know what type of technology they are using and it can be difficult to do analysis that way. I did not tell the recruiter about this concern because it was clear that you have to pass the computer Kenda test to be considered so I did answer anything correctly because I no longer wanted the job. Also, the salary of 115,000 is too low for the skill set requested. I made a lot more than that in my previous SAS job.

### Quantitative Trading Intern at Optiver was asked...

Feb 23, 2021
 Why do you choose Optiver? 1 AnswerI wanted more experience in quantitative analysis and my background in mathematics helped with that.

### Quantitative Trading at Jane Street was asked...

Sep 15, 2018
 Do you have any questions about Jane Street?1 AnswerNo