Buffett Analyzer — A Buffett-Style Stock Screener
Compute Owner Earnings (1986), Look-Through Earnings (1991), Altman Z/Z’, and a Capital Preservation Score in one view. Export a clean PDF.
Owner Earnings
NI + D&A (+ non-cash) − Maintenance CapEx; optional Δ Working Capital penalty.
Greenwald Maint. CapEx
PPE/Sales-based estimator using multi-year history; falls back to D&A when data is thin.
Altman Z / Z’
Manufacturing/public toggle; zone output (Safe/Gray/Distress) with normalized scoring.
Capital Preservation
Blend of Z-zone, inverse drawdown, and inverse volatility; optional contrarian overlay.
Methodology
- Owner Earnings (Buffett 1986): NI + D&A + other non-cash − Maintenance CapEx; optional ΔWC penalty.
- Greenwald Maintenance CapEx: historical PPE/Sales ratio × ΔSales.
- Altman Z/Z’: classical vs. Z’ for non-manufacturers/private proxies.
- Capital Preservation Score: normalized Z-zone + (1 − drawdown) + (1 − volatility).
FAQ
What’s the difference between Owner Earnings and FCF?
OE emphasizes maintenance capex and can optionally penalize Δ working capital; FCF is cash from operations − capex, which can mix growth and maintenance capex.
Can I export a PDF?
Yes — the app includes a one-click export with key metrics and the Buffett Score.