Systematically Find Value Stocks
How to screen like Warren Buffett — exact filters, thresholds, and a step-by-step process to find undervalued quality stocks.
Abstract
Value investing means buying quality companies for less than they're worth — and holding them. This guide shows you the exact filters, thresholds, and step-by-step process to screen for undervalued stocks using ScreenerHub's Stock Screener, so you can apply Warren Buffett's principles in minutes instead of months.
What Is Value Investing?
Value investing is the practice of buying stocks that trade below their intrinsic value — what the business is actually worth based on its earnings, assets, and cash flows. The goal: pay 70 cents for a dollar's worth of company, then wait for the market to close the gap.
The concept was pioneered by Benjamin Graham and David Dodd in the 1930s and later refined by Warren Buffett, who turned it into a multi-decade track record at Berkshire Hathaway.
“Price is what you pay; value is what you get.” — Warren Buffett
Unlike momentum or swing strategies (see Momentum Investing), value investing rewards patience. You're not chasing price trends — you're hunting for mispricings in fundamentally strong businesses.
Why Value Investing Still Works
Markets are efficient most of the time. But “most” isn't “all.” Behavioral biases — fear, herd mentality, short-termism — create windows where strong companies trade at a discount. Value investors exploit these windows.
Margin of safety
Buying below intrinsic value limits downside risk. Even if your analysis is slightly off, the discount cushions the blow.
Mean reversion
Markets eventually reprice undervalued stocks. The larger the gap, the bigger the potential upside.
Compound returns
Reinvesting in undervalued quality companies compounds at higher rates than overpaying for growth.
Lower volatility
Value portfolios tend to fall less in downturns because expectations are already modest.
Many value stocks also pay dividends (see Dividend Investing), adding a steady income stream while you wait for price appreciation.
The Core Principles Behind Buffett's Stock Picks
Before opening any screener, you need to understand what you're screening for. Buffett evaluates every potential investment through four lenses:
Understandable Business Model
Buffett avoids companies he can't explain in one sentence. If you don't understand how a company makes money, you can't judge whether its earnings are sustainable. Stick to sectors you know — ScreenerHub lets you include or exclude specific industries and sectors directly in the Studio.
Durable Competitive Advantage (“Economic Moat”)
A moat is what keeps competitors from eating into a company's profits — brand power (Coca-Cola), network effects (Visa), switching costs (SAP), or cost advantages (Costco). Companies with moats maintain high margins year after year.
- • Consistent ROE above 15% over 5+ years
- • Stable or expanding operating margins
- • Revenue that grows steadily, not erratically
Conservative Financial Management
Buffett hates excessive debt. Companies that rely on heavy borrowing are fragile — one bad quarter can spiral into a crisis. Sound companies fund growth from their own cash flows.
- • Debt-to-equity ratio below 0.5
- • Strong free cash flow relative to net income
- • Interest coverage ratio above 5×
Attractive Price (Margin of Safety)
Even the best company is a bad investment at the wrong price. The margin of safety is the difference between a stock's market price and its intrinsic value. Buffett insists on a wide gap before buying.
- • P/E ratio below the sector or market average
- • Price-to-book (P/B) ratio below 1.5
- • PEG ratio below 1.0 (growth at a reasonable price)
The Buffett Screener: Exact Filters for Value Stocks
Open the Studio and apply these criteria to translate Buffett's philosophy into actionable filters.
| Filter | Threshold | Why It Matters |
|---|---|---|
| Return on Equity (ROE) | ≥ 15% | Proves the company generates strong returns on shareholder capital — a hallmark of moat-protected businesses. |
| Debt-to-Equity Ratio | ≤ 0.5 | Ensures the company isn't overleveraged. Lower debt = more resilience in downturns. |
| P/E Ratio | ≤ 20 | Keeps you from overpaying. A P/E below 20 (ideally below 15) signals reasonable valuation. |
| Price-to-Book (P/B) | ≤ 1.5 | Classic Graham/Buffett threshold. Below 1.5 suggests the market is underpricing assets. |
| Free Cash Flow | > 0 | Confirms the company generates real cash — not just accounting profits. |
| Current Ratio | ≥ 1.5 | Ensures the company can cover short-term obligations without stress. |
| Revenue Growth (5Y) | ≥ 5% | Filters out stagnating businesses. You want consistent — not explosive — growth. |
Pro tip: Start with the first four filters. If you get too few results (< 10 stocks), relax one threshold at a time. If you get too many (> 100), tighten ROE or add a market cap minimum.
Step-by-Step: Running Your First Value Screen
Open the Studio
Go to the Studio — ScreenerHub's core screening tool where you combine any number of filters across fundamentals, valuation, growth, and risk metrics.
Set Your Filters
Add each filter from the table above. ScreenerHub auto-updates results as you add criteria, so you see the impact of each filter in real time.
Narrow by Sector
Buffett's rule: invest in what you understand. Use the sector filter to focus on industries you know — consumer staples, financials, industrials, or healthcare.
Review the Results
Scan the result table. Sort by P/E or ROE to find the most compelling candidates. Click into any stock for its full profile.
Save to a Watchlist
Add promising candidates to a watchlist for ongoing tracking. Don't lose your shortlist — compare it against future screens.
Set Up Monitoring
Use Stock Monitoring to get notified when watchlisted stocks hit a buy price or when key metrics deteriorate.
How to Read the Results
Not every stock that passes the screen is a buy. The screener narrows thousands of stocks to dozens — your job is to evaluate the finalists.
| Metric | Strong Signal | Warning Sign |
|---|---|---|
| ROE | Consistently 15%+ for 5+ years | Volatile or declining ROE |
| Debt-to-Equity | Below 0.3 = fortress balance sheet | Above 1.0 = investigate why |
| P/E | Below sector average | Abnormally low (< 5) may signal distress |
| P/B | 0.5–1.5 = potential undervaluation | Below 0.3 = possible value trap |
| Free Cash Flow | Growing year-over-year | Negative for multiple quarters |
| Revenue Growth | Steady 5–15% annually | Declining or wildly inconsistent |
Value trap alert: A stock with a rock-bottom P/E and declining revenue isn't cheap — it's broken. Always cross-check valuation metrics against profitability and growth trends. If ROE is falling while debt is rising, walk away.
Value Investing vs. Other Strategies
| Strategy | Primary Goal | Key Metrics | Risk | Best For |
|---|---|---|---|---|
| Value Investing | Buy undervalued companies | P/E, P/B, ROE | Moderate | Patient long-term investors |
| Dividend Investing | Build passive income | Yield, payout ratio | Low–Moderate | Income-focused investors |
| Growth Investing | Capture fast-growing companies | Revenue growth, EPS growth | High | Growth-tolerant investors |
| Hidden Champions | Find niche market leaders | Market cap, margins, equity ratio | Moderate | Investors seeking overlooked leaders |
ScreenerHub lets you stack filters from multiple strategies into a single screen — for example, combining value thresholds with dividend yield minimums to find undervalued income stocks.
Common Mistakes in Value Investing
Even disciplined investors fall into these traps. Here's how to avoid them.
Confusing "Cheap" with "Undervalued"
A low P/E ratio alone doesn't mean a stock is undervalued. The company might be cheap for a reason — declining market, regulatory headwinds, or structural problems.
The fix: Always pair valuation metrics (P/E, P/B) with quality metrics (ROE, free cash flow, margin stability).
Ignoring the Business Model
Screening purely by numbers without understanding what the company actually does leads to blind spots.
The fix: After the screen narrows your list, read the company profile. For your top 3–5 picks, read the latest annual report.
Buying and Forgetting
"Buy and hold" doesn't mean "buy and forget." A company's fundamentals can deteriorate — losing a key customer, facing new regulation, or taking on excessive debt.
The fix: Use Stock Monitoring to track when key metrics cross your thresholds. Set alerts for ROE dropping below 12%, debt-to-equity exceeding 0.8, or free cash flow turning negative.
Overconcentration
Finding five undervalued stocks and putting all your money into them defeats the purpose of systematic screening.
The fix: Aim for 15–25 positions across at least 4–5 sectors.
Anchoring to Past Prices
"It was at €80 last year, now it's at €50 — it must be cheap!" Past prices tell you nothing about intrinsic value.
The fix: Focus on current fundamentals vs. current price. The screener filters are forward-looking by design — use them instead of mental price anchors.
Building a Value Portfolio: A Practical Framework
Once your screen delivers results, here's the workflow for building and maintaining a value portfolio.
| Phase | Action | ScreenerHub Feature |
|---|---|---|
| Screen | Run the Buffett filter set (see table above) | Studio |
| Evaluate | Review company profiles, compare peers, cross-check metrics | Stock profiles |
| Shortlist | Save top 15–25 candidates to a dedicated list | Watchlists |
| Monitor | Track fundamental changes and price movements | Stock Monitoring |
| Act | Buy when margin of safety is sufficient; sell when fundamentals deteriorate | Email Alerts |
| Rebalance | Re-run the screen quarterly to find new candidates and prune weak holdings | Pre-Built Screens |
How ScreenerHub Makes Value Investing Practical
Traditional value investing requires reading annual reports, building spreadsheet models, and tracking dozens of metrics by hand. A systematic screener replaces hours of manual work with minutes of focused filtering.
80+ fundamental filters — screen on every metric Buffett cares about, from ROE and debt ratios to cash flow and earnings consistency. Explore all filters →
Real-time screening — results update as you add or adjust criteria. No batch processing, no waiting.
Save and share screens — store your value screen setup and share it with other investors for feedback.
Watchlist integration — move your shortlist into a watchlist and track it over time.
Monitoring and alerts — set up automated alerts so you never miss a fundamental shift.
Multi-currency support — screen stocks in USD or EUR with localized data.
Frequently Asked Questions
Start Screening for Value Stocks
Apply the Buffett filter set and find your first undervalued quality stocks in under 5 minutes.
Risk Disclaimer: Investments in securities involve risks and may result in the total loss of invested capital. The information in this article is for educational purposes only and does not constitute investment advice or a recommendation to buy or sell securities. All investment decisions are made at your own responsibility. It does not replace individual investment advice from qualified professionals.