Backtests
Reported Sharpe versus reproduced Sharpe
Why a headline performance number is not a review result until timing, universe, costs, and code paths can be regenerated.
Notes
Model review notes for investment teams.
Short technical notes on the questions buyers actually ask before trusting a model, backtest, or quantitative diligence memo.
Start here
Four notes for reviewing evidence and buying statistical work.
Start with the common failure points in model review, then use the published-rate guide to compare a statistical-consulting quote before you accept it.
Findings
A finding taxonomy for model validation
How to separate confirmed defects, material assumptions, unresolved questions, limitations, and remediation items.
Governance
SR 26-2 model discipline for non-banks
How to use model-risk vocabulary without pretending a technical review is regulatory assurance.
Pricing
How much does a statistician cost in 2026?
Published US rates by hour, project, and review — plus the scope, data, deliverable, and seniority choices that move a quote.
Reference asset
Use the notes with the public review standard.
The review standard is the checklist behind the notes: decision context, data timing, reproduction, validation design, finding taxonomy, and handoff boundary.