Free during alpha
Generates ETF mixes. Tested. Ranked. With Rigour.
Mathematical optimization, historical validation, simulations and analysis for hypothetical allocations. Uses published academic research,‡ FED articles and datasets§, and CFA Institute model-validation guidance**.
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Free Steady Otter vs. ~$250k to ask AI to do this
| Steady Otter | Do it yourself with AI |
|---|---|
| Free† | ~$250k* for a single run |
|
64 CPU-hours and 10GB of data per Analysis Run Optimized math and anti-overfit measures. |
Without code execution Lacks our executable validation checks. An equivalent, trusted, deterministic result is not guaranteed. |
† Alpha pricing [click to expand] [click to collapse]
† Free during Alpha. Suggested pricing afterwards: $10 for a quick run, up to $100 for a maximally thorough run, on a sliding scale.
* AI cost estimate [click to expand] [click to collapse]
* AI cost estimate: OpenAI Astra Max with access to source code, based on published rates as of Oct 10, 2026.
‡ Academic research [click to expand] [click to collapse]
‡ Hansen (2016; rev. 2023), “The CMA Evolution Strategy: A Tutorial” White (2000), “A Reality Check for Data Snooping,” Econometrica 68(5), 1097–1126 Politis and Romano (1994), “The Stationary Bootstrap,” JASA 89(428), 1303–1313 Cawley and Talbot (2010), “On Over-fitting in Model Selection and Subsequent Selection Bias in Performance Evaluation” Bailey et al. (2015, revised manuscript), “The Probability of Backtest Overfitting” Fama and French (2015), “A Five-Factor Asset Pricing Model,” Journal of Financial Economics 116(1), 1–22.
§ FED articles and datasets [click to expand] [click to collapse]
§ Federal Reserve Bank of St. Louis (n.d.), FRED Blog (economic articles) Federal Reserve Economic Data (FRED) (economic-series metadata and dataset documentation) Archival FRED (ALFRED) (historical-vintage and data-revision documentation).
** CFA Institute guidance [click to expand] [click to collapse]
** CFA Institute Research Foundation (2024), Investment Model Validation: A Guide for Practitioners (practitioner guide).