ROE Decomposition & Benchmarking with 5-Factor DuPont
Return on Equity (ROE) tells you how effectively a company uses shareholders' capital. In interviews, ROE becomes more useful when it is not treated as one profitability number, but decomposed into the levers that create it. The 5-factor DuPont decomposition reveals which lever drives ROE - essential for comparing banks and NBFCs where leverage is the key differentiator.
- Return on Equity (ROE) tells you how effectively a company uses shareholders' capital.
- The 5-factor DuPont decomposition reveals which lever drives ROE.
- 5-Factor DuPont: ROE = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover × Equity Multiplier.
- Bajaj Finance's superior ROE (25.3%) vs HDFC Bank (16.8%) is driven by higher asset turnover and better EBIT margins - not leverage.
- SBI uses highest leverage (14x) but poor EBIT margin (26%) compresses ROE.
- This analysis guides where management should focus.
ROE as a Decomposable Benchmark
Return on Equity (ROE) is most powerful when it is broken into its drivers. The 5-factor DuPont decomposition separates returns into tax burden, interest burden, EBIT margin, asset turnover, and equity multiplier, making it easier to compare HDFC Bank, SBI, and Bajaj Finance.
5-Factor DuPont: ROE = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover × Equity Multiplier.
DuPont Analysis - ROE Decomposition
ROE is Net Income / Equity. In the DuPont view, ROE is decomposed through Net Margin, Asset Turnover, and Equity Multiplier, with the 5-factor version further separating the margin into tax burden, interest burden, and EBIT margin.
Net Margin is NI / Revenue. Asset Turnover is Revenue / Assets. Equity Multiplier is Assets / Equity.
Bajaj Finance's superior ROE (25.3%) vs HDFC Bank (16.8%) is driven by higher asset turnover and better EBIT margins - not leverage. SBI uses highest leverage (14x) but poor EBIT margin (26%) compresses ROE. This analysis guides where management should focus.
Note: All figures are illustrative/approximate and for educational purposes only. Sources: Company annual reports, SEBI filings, RBI data, and publicly available information.
Structuring a ROE Decomposition & Benchmarking Interview Answer
"How would you compare ROE for HDFC Bank, SBI, and Bajaj Finance using DuPont decomposition?"
Do not stop at saying which company has the highest ROE. Decompose the ROE and identify whether the return is coming from margins, turnover, interest burden, tax burden, or leverage.
The common mistake is treating ROE as a single profitability number and assuming a higher ROE always comes from leverage. Bajaj Finance's superior ROE is driven by higher asset turnover and better EBIT margins - not leverage - while SBI uses highest leverage but poor EBIT margin compresses ROE.
Conclusion
ROE decomposition turns a headline return metric into a benchmark of tax burden, interest burden, EBIT margin, asset turnover, and equity multiplier. The interview-ready takeaway is simple: identify the driver of ROE before judging the quality of returns.