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Global Investment Bank Interview Questions

The questions to prepare for Global Investment Bank interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
Statistics & ProbabilityStart here. 4 questions · ~33 min
Expected Flips for Two HeadsMedium

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

DistributionsExpected ValueConditional ProbabilityGGlobal Investment Bank
Sum of Independent Variables DistributionMedium

Tests understanding of convolution and distribution properties.

GGlobal Investment Bank
Estimate Variance from Small SampleMedium

Assesses ability to reason about variance estimation with limited data.

GGlobal Investment Bank
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2
Machine Learning3 questions · ~25 min
Mitigating Overfitting with Limited DataMedium

Evaluates regularization, validation, and data strategy.

model trainingoverfittingGGlobal Investment Bank
Backtesting Look-Ahead BiasMedium

Tests understanding of backtesting integrity and data leakage prevention.

model validationGGlobal Investment Bank
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3
Behavioral & Leadership5 questions · ~41 min
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4
More topics3 questions · ~25 min
Evaluating Beyond AccuracyHard

Explain how to evaluate a model using metrics, validation, calibration, and error analysis beyond accuracy.

model performanceevaluation metricsPrecisionGGlobal Investment Bank
Describe the architecture of a project you are proud ofHard
Recently asked

Explain a project architecture, including its layers, dependency direction, state ownership, testability, and key design trade-offs.

TestabilityLayered Architecturetechnical experienceGGlobal Investment Bank
Backtesting Significance in Q ResearchMedium

Assesses understanding of validation and strategy evaluation.

GGlobal Investment Bank

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