Return on Equity (ROE)

Formula: ROE = Net Income / Shareholders' Equity x 100%

Both figures come from the company's financial statements. Net income is from the income statement (trailing twelve months or annual). Shareholders' equity is from the balance sheet (total assets minus total liabilities).

Example: A company earns $500 million in net income with $2.5 billion in shareholders' equity. ROE = $500M / $2,500M = 20%. This means the company generates $0.20 in profit for every dollar of equity.

Interpretation benchmarks: ROE below 10% is generally weak (the company is not using shareholders' capital efficiently). 10-15% is average for most industries. 15-25% is strong and suggests competitive advantages. Above 25% is exceptional but warrants investigation — it may be driven by excessive debt rather than operational excellence.

Watch for trends: A single year's ROE is less meaningful than the trend. Consistently high ROE (5+ years above 15%) indicates durable competitive advantages — strong brand, network effects, switching costs, or cost leadership. Declining ROE suggests competitive erosion, shrinking margins, or inefficient capital allocation.

Negative equity pitfall: Some profitable companies (like McDonald's and Starbucks) have negative shareholders' equity due to massive share buybacks. This makes ROE mathematically negative or undefined, even though the businesses are highly profitable. Use ROA (return on assets) as an alternative metric for these companies.

DuPont analysis decomposes ROE into three component drivers, revealing whether high ROE comes from operational strength or financial engineering:

Three-factor DuPont: ROE = Profit Margin x Asset Turnover x Equity Multiplier

• Profit margin (Net Income / Revenue): How much of each revenue dollar becomes profit. Higher margins indicate pricing power and cost control.
• Asset turnover (Revenue / Total Assets): How efficiently the company uses its assets to generate revenue. Higher turnover means more productive asset utilization.
• Equity multiplier (Total Assets / Shareholders' Equity): How much leverage the company uses. Higher multiplier means more debt financing.

Why this matters: Two companies can both have 20% ROE through completely different paths:

• Company A: 10% margin x 2.0 turnover x 1.0 multiplier = 20% ROE (high efficiency, no leverage)
• Company B: 5% margin x 1.0 turnover x 4.0 multiplier = 20% ROE (low efficiency, high leverage)

Company A's ROE is sustainable and high-quality. Company B's ROE is fragile — it depends on cheap debt, and a rate hike or recession could collapse it.

For stock selection: Prefer companies where ROE is driven by high margins and asset turnover rather than leverage. Use DuPont analysis to identify quality businesses versus leveraged ones masquerading as efficient operators.

ROE vs ROA (Return on Assets): ROA = Net Income / Total Assets. ROA measures profitability relative to all capital (debt + equity), while ROE measures profitability relative to equity only. When ROE is much higher than ROA, it signals the company is using significant leverage to amplify equity returns. Compare both: high ROA + high ROE = genuinely efficient. Low ROA + high ROE = leverage-driven.

ROE vs ROIC (Return on Invested Capital): ROIC = NOPAT / Invested Capital (equity + debt - cash). ROIC is considered the most complete profitability metric because it measures returns on all invested capital regardless of financing structure. Warren Buffett and many value investors prefer ROIC over ROE because it cannot be inflated by leverage or cash management tricks.

ROE vs ROE growth: A company with 15% ROE that is growing ROE over time is more attractive than one with 25% ROE that is declining. Improving ROE suggests expanding margins, better capital allocation, or operational improvements — all positive signals.

Sector-specific ROE expectations: Technology: 15-30% (asset-light models). Banking: 10-15% (regulated leverage). Utilities: 8-12% (stable but capital-intensive). Retail: 12-20% (varies by brand strength). Healthcare: 12-22% (depends on patent portfolio). Always compare ROE within the same sector — a utility with 12% ROE is strong; a tech company with 12% ROE is mediocre.