IBM vs Morgan Stanley Interview Questions
IBM lists 115 LeetCode interview questions while Morgan Stanley lists 60. They share 22 problems — 19% of IBM's bank and 37% of Morgan Stanley's. Focus on the overlap first, then drill into 93 IBM-only and 38 Morgan Stanley-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 22 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Morgan Stanley.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, Exclusive Time of Functions and Morgan Stanley-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Morgan Stanley skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
22 Shared Questions
High-priority problems to practice for both IBM and Morgan Stanley.
| Problem | Difficulty |
|---|---|
| 3Sum | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Meeting Rooms II | Medium |
| Merge Intervals | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Minimum Suffix Flips | Medium |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Maximum Subarray | Medium |
| Spiral Matrix | Medium |
| Kth Missing Positive Number | Easy |
| Group Anagrams | Medium |
| Longest Increasing Subsequence | Medium |
| Find The Original Array of Prefix Xor | Medium |
| Palindrome Number | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Generate Parentheses | Medium |
| Least Number of Unique Integers after K Removals | Medium |
| The Employee That Worked on the Longest Task | Easy |
| LRU Cache | Medium |
| Majority Element | Easy |
Unique to IBM (93)
Problems in IBM's list that do not appear at Morgan Stanley.
Unique to Morgan Stanley (38)
Problems in Morgan Stanley's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and Morgan Stanley share?
IBM and Morgan Stanley share 22 LeetCode interview questions. 93 problems appear only in IBM's list and 38 appear only in Morgan Stanley's list.
What topics overlap most between IBM and Morgan Stanley?
The most common shared topics between IBM and Morgan Stanley are Array (16 shared questions), Hash Table (7 shared questions), Sorting (6 shared questions), Dynamic Programming (5 shared questions), String (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Morgan Stanley?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Morgan Stanley has 13 Easy, 40 Medium, and 7 Hard questions. Morgan Stanley has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Morgan Stanley?
Start with the 22 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 Morgan Stanley-specific questions to round out your prep.