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Point-in-time backtesting platform for value investors
A SaaS platform that provides individual investors with survivorship-bias-free point-in-time fundamental data, automated DCF backtesting, and proper statistical testing. Users can define valuation rules before running backtests, test multiple holding periods, and validate strategies against historical data.
Pourquoi c'est important
You spend hours building a DCF model to value stocks, but when you try to backtest it, you realize you need 13 years of point-in-time SEC filings, exact treasury yields on each date, and delisted companies that went to zero. Your data only covers companies still listed today, making your backtest look better than reality. You manually code statistical adjustments for overlapping return windows and discover your trailing-growth input systematically selects value traps. Without affordable access to clean historical data and proper testing frameworks, you cannot trust your own model enough to invest real money based on it.
- · Conçu pour Individual value investors and quantitative researchers who build their own DCF models and want to validate them against historical data without paying for Bloomberg terminals..
- · Monétisation la plus probable : SaaS subscription.
La douleur · Récit
You spend hours building a DCF model to value stocks, but when you try to backtest it, you realize you need 13 years of point-in-time SEC filings, exact treasury yields on each date, and delisted companies that went to zero. Your data only covers companies still listed today, making your backtest look better than reality. You manually code statistical adjustments for overlapping return windows and discover your trailing-growth input systematically selects value traps. Without affordable access to clean historical data and proper testing frameworks, you cannot trust your own model enough to invest real money based on it.
Détail du score
Signal du marché
Mise sur le marché
Individual value investors who actively build DCF models in spreadsheets and want to validate them against historical data.
~200K-500K globally based on investing community sizes and active fundamental analysis practitioners
Investing community organic posts on Reddit and Hacker News with detailed backtest methodology
$49/month for individual tier with point-in-time data access
30 paying users within 60 days of launch from organic community posts
Périmètre MVP · 1–2 semaines
- Build SEC EDGAR API integration to fetch historical 10-K/10-Q filings with correct filing dates
- Create stock universe builder that includes delisted companies using free CRSP alternatives
- Implement basic DCF calculation engine with customizable growth inputs
- Set up PostgreSQL schema for point-in-time fundamental data storage
- Create simple CLI tool to run a single backtest with defined rules
- Add treasury yield integration from FRED API for point-in-time discount rates
- Implement quarterly rebalancing logic with 1y, 3y, and 5y holding periods
- Add Newey-West standard error calculation for statistical significance
- Build web UI for defining backtest rules and viewing results
- Create comparison dashboard showing cheap quintile vs equal-weight universe vs SPY
Différenciation
Pourquoi cela pourrait échouer
Auto-contre-argument — le signal de confiance le plus important
- 1Data licensing costs for survivorship-bias-free historical data may exceed what individual investors are willing to pay, making the unit economics unsustainable.
- 2The target audience of serious individual value investors may be too small and too price-sensitive to sustain a SaaS business, especially if they can approximate results with free tools.
- 3Regulatory scrutiny could increase if the platform is perceived as providing investment recommendations rather than research tools, requiring costly compliance measures.
Résumé des preuves
Comment l'IA a synthétisé cet aperçu — pas de citations textuelles
The original poster spent significant effort manually building a point-in-time backtest over 13 years, noting delisted names as a key weak spot. Multiple commenters identified survivorship bias and overlapping return windows as critical statistical issues. Several users expressed interest in the published research and shared their own DIY backtesting platforms, indicating unmet demand for an accessible solution. The discussion revealed that proper point-in-time data handling and statistical robustness are beyond what most individual investors can build themselves.
Plan d'Action
Validez cette opportunité avant d'écrire du code
Prochaine Étape Recommandée
Construire
Signaux de demande forts. Vraie douleur et volonté de payer détectées — commencez à construire un MVP.
Kit de Textes pour Landing Page
Textes prêts à coller, basés sur le langage réel de la communauté Reddit
Titre Principal
Point-in-time backtesting platform for value investors
Sous-titre
A SaaS platform that provides individual investors with survivorship-bias-free point-in-time fundamental data, automated DCF backtesting, and proper statistical testing. Users can define valuation rules before running backtests, test multiple holding periods, and validate strategies against historical data.
Pour Qui
Pour Individual value investors and quantitative researchers who build their own DCF models and want to validate them against historical data without paying for Bloomberg terminals.
Liste des Fonctionnalités
✓ Survivorship-bias-free historical stock universe including delisted companies ✓ Point-in-time SEC filing data aligned by actual filing dates ✓ Automated DCF and reverse DCF engine with customizable inputs ✓ Statistical testing with Newey-West standard errors for overlapping periods ✓ Multi-period backtesting (1y, 3y, 5y holding periods) with quarterly rebalancing
Où Valider
Partagez votre landing page sur r/r/ValueInvesting — c'est exactement là que ces points de douleur ont été découverts.
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