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)

GOOGL
Analysis Date Nov 3, 2022
Snapshot Price $85
Buffett Score 87/100 Premium Grade
Intrinsic Value $275
Margin of Safety 69%
D/E Ratio 0.07
FCF Yield 11%

By 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

JNJ
Analysis Date Mar 23, 2020
Snapshot Price $109
Buffett Score 88/100 Premium Grade
Intrinsic Value $183
Margin of Safety 40%
D/E Ratio 0.44
FCF Yield 17%

By 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.

2 / 5 historical cases met criteria
+86% average appreciation on passed cases
*Past performance is not indicative of future results. Returns shown are price appreciation only and exclude dividends, taxes, and transaction costs. Financial data sourced from SEC EDGAR 10-K filings.

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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