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Morgan Stanley Quantitative Analyst interview questions

based on 98 ratings - Updated Feb 17, 2026

Average interview difficulty

Mixed interview experience

How others got an interview

67%
Applied online
Applied online
18%
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9%
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Recruiter
7%
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98 interviews

Quantitative Analyst Interview

Jan 30, 2018

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I applied online. I interviewed at Morgan Stanley

Interview

Applied online and got two phone Interview from a quant team. The team is mainly for core quant modeling and the work is quite difficult. In the previous interview I was asked about some probability and algorithm question and in the following interview I was asked some mathematical finance questions.

Interview questions [1]

Question 1

1. What is numeraire and its relationship with Girsanov 2. How to price option with Montecarlo

Answer question

Quantitative Analyst Interview

Nov 10, 2017

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I applied through college or university. I interviewed at Morgan Stanley

Interview

I took a written exam after knowing about that through emails sent by my university. Then I got an email to schedule initial phone interviews after about a month. The interview questions listed below come from five phone interviews from five teams.

Interview questions [9]

Question 1

How to detect a loop in a single linked list.

1 Answer

Question 2

Three random variables X, Y, Z. If corr(X, Y) = 0.85, corr(Y, Z) = 0.9, is it possible that we have corr(X, Z) = 0.15?

4 Answers

Question 3

Suppose we have an uneven coin, with probability p of getting a head if flipped. Suppose now we flip the coin and observe a head, what is the expectation of p.

1 Answer

Question 4

How to calculate the length of a union of n intervals. For example, the union of [1.5, 2] and [2.5, 3] is [1.5, 2] U [2.5, 3], which has length 1. The union of [1.5, 3] and [2, 2.5] is [1.5, 3], which has length 1.5.

1 Answer

Question 5

What is interior point method? How is it related to gradient descent?

Answer question

Question 6

How to do goodness-of-fit test for LASSO?

Answer question

Question 7

How to calculate moving median (per k numbers) for n numbers (n>=k)?

1 Answer

Question 8

What is SVM method? What is the support vector?

Answer question

Question 9

When calculating standard deviation, should we divide it by n or n-1? Why?

2 Answers

Quantitative Analyst Interview

Jun 29, 2017

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I applied online. I interviewed at Morgan Stanley (New York, NY) in Jan 2017

Interview

applied on line, received an invitation for a written screening exam in January. Two weeks later, received the first round phone interview invitation from HR. I went through 4 rounds of phone interviews in the following 2 months...

Interview questions [1]

Question 1

explain your experience on your resume

Answer question

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Morgan Stanley Quantitative Analyst interview questions

Average interview difficulty

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Quantitative Analyst Interview

Quantitative Analyst Interview

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