The Headlands Technologies Statistics & Modeling interview is stage 4 of 5 in the Headlands Technologies interview process, after the Probability & Mental Math. Format: 45-60 min - video. Statistics and regression: estimator properties, p-value vs sample size, collider/selection bias, OLS pitfalls.
Preparing for this round? Practice the 9 questions mapped to the Headlands Technologies Statistics & Modeling, with worked solutions. A free account saves your progress.
What the Statistics & Modeling tests
QuantVault maps 9 practice problems to this round. By topic, the biggest groups are regression (6), statistics (3); by difficulty, 1 easy, 8 medium and 0 hard. 6 of them were reported by candidates who interviewed at Headlands Technologies, most recently in Jul 2026.
- Research screens run about an hour with a researcher: why each OLS assumption matters, z versus t tests, what a p-value means at different sample sizes, PCA, ridge and lasso, and a deep dive on your projects.
How to prepare for the Statistics & Modeling
- p-value vs sample size and selection/collider bias come up.
- OLS properties -- R-squared, significance, TLS/PCA.
- Tie stats to signals.
Further reading: How quant superdays work · Behavioral questions at trading firms · Market-making game interview guide.
Question types in this round
The 2 largest question types in the Headlands Technologies Statistics & Modeling practice set; across them the most common sub-topics are variance, hypothesis testing, regularization, convex optimization, correlation, estimation. The questions themselves, with worked solutions, are in the round practice.
Regression6 in this round
Statistics3 in this round
Prepare with QuantVault
The same round at similar firms
Compare with similar firms
Frequently asked questions
What is the Headlands Technologies Statistics & Modeling interview?
It is stage 4 of 5 in the Headlands Technologies interview process, after the Probability & Mental Math. Format: 45-60 min - video. Statistics and regression: estimator properties, p-value vs sample size, collider/selection bias, OLS pitfalls.
How long is the Headlands Technologies Statistics & Modeling interview?
Candidates report: 45-60 min - video.
What questions come up in the Headlands Technologies Statistics & Modeling interview?
The practice set QuantVault maps to this round centers on regression, statistics.
How should I prepare for the Headlands Technologies Statistics & Modeling interview?
p-value vs sample size and selection/collider bias come up. OLS properties -- R-squared, significance, TLS/PCA.
What comes after the Statistics & Modeling?
The Onsite (stage 5 of 5). Format: Final rounds - the toughest reported problems.
Practice the Headlands Technologies Statistics & Modeling round
Work the 9 mapped practice problems with progress tracking, then move to the next stage of the Headlands Technologies funnel.