Warren Buffett's investment principles, applied to the S&P 500 every day.
Every market day at 4 PM EST, our algorithm scans 500 companies using Buffett's 6 core criteria — low debt, high ROE, strong free cash flow, and a meaningful margin of safety. When a stock scores above our threshold, you receive a same-day research alert with the full breakdown.
What Buffett's criteria found — before the market did
We back-tested our model against landmark buying opportunities using actual SEC filings from the time. These are the stocks Buffett's 6 principles would have flagged — and what happened next.
Alphabet Inc. (Google)
GOOGLBy January 2025, Alphabet traded at $195 — a +129% return in 26 months.
"Ad revenue fears and rate hikes pushed GOOGL to P/E 17× in late 2022 — near its lowest valuation ever. FCF yield was 11% and the balance sheet was nearly debt-free. The model issued a high-confidence research score."
Johnson & Johnson
JNJBy January 2025, JNJ traded at $155 — a +42% return, plus dividends.
"During the March 2020 panic, JNJ — a 130-year-old Dividend Aristocrat — briefly traded below P/E 15×. FCF yield hit 17%. The model flagged it immediately."
Buffett's discipline: what the model passed on — and why
Microsoft (MSFT), June 2016 — Score: 79.6/100
Buffett's approach demands a minimum score of 80. MSFT came in at 79.6. Even though MSFT went on to become one of the decade's best performers, the model held the line. That consistency is what makes a high score meaningful when one does appear.
Visa (V), March 2020 — Margin of Safety: 24.0%
Buffett's rule: only buy when you have a sufficient cushion below intrinsic value. Visa's intrinsic value was $201 against a market price of $153 — just 1 percentage point short of the required 25% margin. The model waited. Discipline over FOMO.
Buffett's 6 core principles. Scored daily. No guesswork.
Buffett has described his investment framework in detail over 60 years of shareholder letters. We've formalized it into a quantitative score — the same way he thinks, but automated.
| Buffett Principle | What We Measure |
|---|---|
| Proven Track Record | "I like businesses with 10+ years of operating history." — Long public trading record |
| Durable Profit Margins | "A moat shows up in consistent margins." — Sustained margins with revenue growth |
| Low Debt | "Debt is a four-letter word." — Conservative Debt-to-Equity ratio |
| Return on Equity | "ROE is the single best measure of management quality." — >15% sustained ROE |
| Attractive Valuation | "Price is what you pay, value is what you get." — P/E below intrinsic value |
| Free Cash Flow | "Cash is king." — Positive, growing owner earnings |
When a stock scores 80+ across all six principles, you get a same-day Pro Alert — Buffett Score, intrinsic value, margin of safety, and full breakdown.
Stocks scoring 75–79 appear in the free Friday Watchlist — on Buffett's radar, not yet at his price.
Pro subscribers receive the complete scoring weights, exact thresholds, and the DCF model assumptions behind every intrinsic value calculation.
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- Sector Value Map — monthly heatmap of where value is concentrated
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- Full breakdown: Buffett Score, intrinsic value, margin of safety
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