Quick Answer
Profitability metrics measure how efficiently a company converts revenue into earnings at each layer of the income statement. The exam-relevant set covers earnings adjustments (extraordinary and nonrecurring items), the earnings layers (EBIT, EBITDA, EBITDAR, EPS, earnings yield), the margin stack (gross, operating, pre-tax, net), and the return metrics (ROA, ROE, ROI, ROIC).
After liquidity comes profitability: is the business actually making money, and how much of each revenue dollar survives to the bottom line?
Earnings Adjustments
Before computing any margin or multiple, bankers normalize earnings by stripping out items that don't reflect the recurring business.
- Extraordinary items: Unusual AND infrequent gains or losses (rare under US GAAP today, but the concept still appears on the exam)
- Nonrecurring items: One-time charges such as restructuring costs, litigation reserves, asset impairments, or gains on sale
Both categories are excluded from "clean" or run-rate earnings so the comparable multiple reflects the ongoing business, not a one-time event.
Earnings Layers
These are the core earnings measures bankers strip out of the income statement.
| Metric | Definition |
|---|---|
| EBIT | Earnings before interest and taxes (operating income) |
| EBITDA | EBIT plus depreciation and amortization (D&A) |
| EBITDAR | EBITDA plus rent (or restructuring); used for industries with heavy operating-lease loads |
| EPS | Net income (less preferred dividends) divided by weighted average shares outstanding |
| Earnings yield | EPS divided by price per share (the inverse of P/E) |
| Equity turnover | Revenue divided by stockholders' equity |
EBITDAR is the layer used for restaurants, casinos, airlines, hotels, and retail: industries where most operating assets are leased rather than owned. Adding rent back makes a leased-asset operator comparable to an owned-asset operator.
Think of it this way: EBIT, EBITDA, and EBITDAR each strip away one more layer of non-operating, capital-structure-sensitive, or accounting-driven noise. The cleaner the layer, the easier it is to compare two companies with different financing or asset-ownership structures.
Exam Tip: Gotchas
- EBITDA is NOT cash flow. It ignores working-capital changes, capital expenditures (CapEx), and the interest and taxes actually paid. A company with great EBITDA but $0 free cash flow is more common than candidates expect.
- EBITDAR adds back rent to compare leased-asset operators with owned-asset operators. A hotel chain that leases its properties looks weaker on EBITDA than an owner-operator with identical economics. EBITDAR normalizes them.
The Margin Stack
The margin stack reads top-down from the income statement, each margin a smaller fraction than the one above.
| Margin | Formula |
|---|---|
| Gross margin | (Revenue minus COGS) / revenue |
| Operating margin (operating profit margin) | Operating income / revenue |
| Pre-tax margin | Pre-tax income / revenue |
| Net margin (net profit margin) | Net income / revenue |
Each margin tells a different story:
- Gross margin = pricing power and direct cost discipline
- Operating margin = pricing power minus all operating overhead
- Pre-tax margin = operating performance after interest and other non-operating items
- Net margin = what shareholders actually get per revenue dollar
Return Metrics
Return metrics measure profit per dollar of capital tied up in the business.
| Return Metric | Formula | Denominator |
|---|---|---|
| ROA (return on assets) | Net income / total assets | All capital invested in the business |
| ROE (return on equity) | Net income / stockholders' equity | Equity only |
| ROI (return on investment) | Gain / cost of investment | Specific investment basis |
| ROIC (return on invested capital) | Net operating profit after tax (NOPAT) / invested capital | Debt + equity |
| Total expense ratio | Total expenses / revenue | All operating costs |
ROIC is the standard bankers use when comparing returns across companies with different capital structures. NOPAT (net operating profit after tax) and invested capital (debt plus equity) both strip out financing-mix effects, so two companies with very different debt loads can still be compared head-to-head.
Exam Tip: Gotchas
- ROA vs ROE differ by leverage. A highly leveraged company can post a strong ROE on a mediocre ROA because borrowed capital amplifies returns on the equity sliver. The exam tests whether candidates know which denominator strips out leverage (ROA, ROIC) and which does not (ROE).
- ROIC uses NOPAT, not net income. NOPAT = EBIT × (1 minus tax rate). Net income subtracts interest expense, which conflates operating returns with financing choices. NOPAT keeps the comparison clean.