Stock Screener: Filter by P/E, ROE, and Dividend Yield

TL;DR

• P/E ratio tells you how many years of earnings investors pay for each share — compare within the same sector, not across industries.
• ROE measures how efficiently a company converts equity into profit; 15–20% is generally considered solid.
• Dividend yield captures cash income relative to share price, but a high yield can signal a falling price rather than generosity.

Why Use a Stock Screener

A stock screener applies quantitative filters to a universe of securities, turning thousands of candidates into a manageable shortlist. Instead of picking stocks by intuition, screeners let you target specific financial profiles — value stocks with low P/E, quality companies with high ROE, or income plays with above-average dividend yields.

The SEC distinguishes several stock types relevant to screening:

P/E Ratio: The Earnings Multiplier

The price-to-earnings ratio divides a company's share price by its earnings per share. The result represents the number of years the market is willing to pay for each dollar of earnings — assuming earnings remain constant. A P/E of 15 means investors pay $15 for every $1 of annual earnings.

Formula: P/E = Share Price ÷ Earnings Per Share

Wikipedia notes that there is no universal "fair" P/E — the range of 10 to 20 is a rough guideline that varies by sector and business model (Wikipedia). Growth companies in technology or biotech often trade above 25×, while utilities typically sit below 15×. P/E becomes undefined or "N/A" for companies with no earnings or losses.

The P/E ratio can also be calculated at the index level. As of late 2020, the S&P 500 trailing P/E reached 38.3, a level only seen twice before in U.S. market history (Wikipedia). This historical context helps calibrate whether aggregate market screeners flag overvaluation.

When P/E Filters Fail

A standalone P/E filter misses earnings quality. A company with artificially low EPS — due to one-time charges or aggressive accounting — will show a misleadingly low P/E. Wikipedia notes that alternative P/E measures substitute rolling averages or corrected earnings to smooth out volatility.

ROE: Profitability from Shareholder Capital

Return on equity divides net income by shareholders' equity, expressed as a percentage. It answers a single question: for every dollar of equity, how many cents of profit does the company generate?

Formula: ROE = Net Income ÷ Average Shareholders' Equity × 100

An ROE of 15–20% is generally considered good across most industries. Wikipedia adds that ROE is especially useful for comparing companies within the same industry, since capital structures and business models differ across sectors (Wikipedia).

The DuPont Breakdown

The DuPont formula decomposes ROE into three components:

1. Net profit margin — how much profit the company keeps from each dollar of revenue
2. Asset turnover — how efficiently the company uses its assets to generate sales
3. Equity multiplier — the degree of financial leverage (assets ÷ equity)

A company with a 25% ROE driven by leverage is structurally different from one with a 25% ROE driven by margins and turnover. Screening for high ROE without the DuPont breakdown risks conflating financial engineering with operational excellence.

ROE Distortions to Avoid

Share buybacks reduce shareholder equity, which mathematically inflates ROE even if net income stays flat (Wikipedia). Companies with negative equity (liabilities exceeding assets) produce meaningless ROE figures. Screeners should exclude companies with negative equity and flag those with buyback-heavy ROE profiles.

Dividend Yield: Income Relative to Price

Dividend yield equals the annual dividend per share divided by the current share price, expressed as a percentage. At the company level, the same concept is total annual dividends divided by market capitalization (Wikipedia).

Formula: Dividend Yield = Annual Dividend per Share ÷ Current Share Price × 100

Published yields are not fully standardized — trailing yield uses the prior 12 months, forward yield annualizes the latest payment, and indicated yield uses the most recent declaration (Wikipedia).

The Yield Trap

A high dividend yield can be misleading. Wikipedia explains that high yields often result from a falling share price (the denominator effect) rather than a generous payout. MSCI flags that trailing yields rise when prices drop and then decline if dividends are subsequently cut — a pattern known as a yield trap (Wikipedia).

The dividend payout ratio (common-share dividends divided by net income) provides a complementary check. Extremely high payout ratios — above 80% — leave little room for dividend growth or unexpected shocks (Wikipedia).

Building Your Screening Criteria

A practical stock screener combines P/E, ROE, and dividend yield with sector context. No single threshold fits all companies — the same P/E of 18× may signal value in utilities and overvaluation in technology.

Suggested Filter Ranges by Sector

Note: The ranges above are illustrative based on general market observations. The Source column cites the canonical sources used for context.

Adding P/B as a Cross-Check

The price-to-book ratio compares market value to book value (assets minus liabilities). Industries with heavy infrastructure capital — banks, utilities, REITs — typically trade at lower P/B ratios than consulting or software firms (Wikipedia). Academic research consistently finds that low P/B stocks tend to outperform high P/B stocks in the United States and other nations (Wikipedia). Eugene Fama and Kenneth French incorporated price-book as a factor in their influential three-factor model (Wikipedia).

Putting It Together: A Screening Workflow

1. Define your objective. Income? Growth? Value? Each requires different primary filters.
2. Set sector-relative thresholds. A 12× P/E is cheap for a utility and expensive for a semiconductor.
3. Layer complementary filters. Combine P/E with ROE to separate cheap from quality. Add dividend yield for income screens.
4. Check for distortions. Exclude companies with negative equity, one-time EPS items, or buyback-driven ROE without further analysis.
5. Refresh data regularly. Screening snapshots decay. A stock that passed filters last month may no longer qualify after earnings or price moves.

For a deeper walkthrough of fundamental indicators, see the analysis of ROE and DuPont decomposition and our P/E ratio guide. The dividend yield explained article covers trailing versus forward conventions in detail.

Common errors and fixes

FAQ

What does P/E ratio stand for?

P/E stands for price-to-earnings ratio. It divides a stock's market price by its earnings per share, showing how many years of earnings the market is willing to pay for one share.

How do you calculate ROE?

Divide net income by average shareholders' equity and multiply by 100. A ROE of 20% means the company earns $0.20 for every $1 of equity capital.

Why is dividend yield not the same as total return?

Dividend yield measures only cash dividend income relative to price. Total return also includes capital appreciation (or depreciation) from share price changes. A stock with a 5% yield and a -10% price change delivers a -5% total return.

Can stock screeners guarantee good investments?

No. Screeners filter based on historical and current data; they do not predict future performance. Economic conditions, management changes, and market sentiment all affect outcomes.

What is a yield trap?

A yield trap occurs when a stock's dividend yield rises sharply due to a Falling share price rather than an increasing payout. Investors attracted by the high yield buy in, then the company cuts the dividend and the price drops further.

How does leverage affect ROE?

Leverage increases the equity multiplier in the DuPont formula (equity multiplier = Total Assets ÷ Total Equity). Higher debt raises this component, boosting ROE even if operational performance is unchanged.

Sources

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