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Top 50 Quantitative Analyst Interview Questions

The 50 most important questions to prepare for Quantitative Analyst interviews. Questions from real interview reports rank first. Updated daily.

50questions
~13htotal time
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1
CodingStart here. 16 questions · ~250 min
Detect Recurring DivisionMedium
Practice
Recently asked

Convert an exact fraction into canonical decimal notation with recurring digits marked using remainder cycle detection.

divisionGoldman Sachs Asset & Wealth ManagementGoldman SachsGoldman Sachs Bank
Detect Cycle in Linked ListEasy
Practice
Recently asked

Use Floyd’s two-pointer algorithm to determine whether a singly linked list contains a cycle.

Hash TablesLinked ListsTwo PointersSigmoidAMD Construction GroupInformatica
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2
SQL & Data Manipulation7 questions · ~109 min
SQL Joins and Conditional AggregationsHard
Practice

Use multiple joins and conditional aggregation to summarize completed, positive, and total outreach activity by Catalist campaign.

Joinssql queryAggregationsCatalistJ.P. Morgan
SQL for Options Average PriceEasy
Practice

Write a SQL query to find the average price of options traded in the last month. Use the previous calendar month relative to CURRENTDATE and exclude trade...

Date Functionsfinancial datasqlCiti
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3
Machine Learning16 questions · ~250 min
Handling Missing and Noisy DataEasy
Recently asked

Explain a practical approach for handling missing values and noisy observations in a supervised learning dataset.

Cross-ValidationFeature EngineeringSupervised LearningWisdomTreeLynker TechnologiesSeatgeek
Supervised vs Unsupervised LearningEasy
Recently asked

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffCNABeyondmathBooking
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4
Statistics & Probability6 questions · ~94 min
Expected Flips for Two HeadsMedium
Recently asked

Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

DistributionsExpected ValueConditional ProbabilityVirtu FinancialSusquehanna International GroupAKUNA CAPITAL
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5
Behavioral & Leadership4 questions · ~62 min
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6
More topics1 question · ~16 min
Investigate User Engagement DeclineMedium
Recently asked

Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.

RetentionDiagnosisEngagement MetricsE15 GroupMeta ITBungalow
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