Financial Reporting & Analysis: The Balance Sheet and Income Statement
This course evaluates financial reporting from the user's perspective — critically, not just mechanically. We begin with the analyst's toolkit: ratios. Ratios make companies comparable across firms and time, and the headline measure of performance, return on equity (ROE), decomposes — via DuPont analysis — into profitability, efficiency and leverage. This lesson works through that decomposition and the full set of profitability, activity, liquidity and solvency ratios, then asks the harder question: against what benchmark should a ratio be judged?
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A ratio is an indicator of a company's performance and position. Critically, ratios tell you "what happened", not "why it happened" — for a good analyst they generate good questions, not answers. They serve two ends that can conflict: a financial-analysis objective (comparison between companies and across time) and a financial-reporting objective — differences in accounting policy can distort ratios, and a large part of this course is learning where those distortions hide.
Learning outcomes
- Decompose ROE into ROA and leverage, and into the five-factor DuPont identity.
- Interpret profitability margins and the role of non-recurrent items and operating leverage.
- Compute and interpret activity ratios and the cash conversion cycle.
- Assess liquidity (current, quick, cash) and solvency (debt/equity, interest coverage) ratios.
- Select appropriate benchmarks and use segment disclosures, with their agency and proprietary-cost caveats.
Ratios as tools — and why averages
Absolute numbers indicate only the size of a business; ratios provide comparable measures between companies and across time. Two firms can earn very different absolute profits yet have very different ROEs: Company A earning 30 on equity of 300 has ROE 10%, while Company B earning 300 on equity of 6,000 has ROE 5% — B is larger but creates less value per pound of equity.
The balance sheet is a snapshot at a point in time (a "stock"); the income statement describes performance over a period (a "flow"). Pairing a flow (net income) with a single-date stock would mix incompatible data, so we use the average of opening and closing assets/equity to approximate the level held during the period.
The drivers of ROE — DuPont analysis
Return on equity is net income attributable to common shareholders over average common equity. Its first decomposition splits it into return on assets and leverage:
Leverage is approximately \(1+\frac{\text{Avg total liabilities}}{\text{Avg equity}}\). A high ROE driven by leverage is a warning sign, not a triumph — it raises risk. ROA itself splits into profitability (net profit margin = income per unit of sales) and efficiency (asset turnover = revenue per unit of assets). There is a subtle inconsistency in ROA: net income belongs to shareholders, but assets are financed by shareholders and creditors — which is why the full DuPont identity below restores consistency.
Profitability analysis
The income statement runs Revenue − COGS = Gross profit − Operating expenses (SG&A, R&D, depreciation) = Operating profit (EBIT) − net interest = Pre-tax profit (EBT) − tax = Net income. The five-step identity reads off three margin-related drivers:
- Tax burden = NI/EBT ≈ (1 − average tax rate). Higher ratio → lower effective tax. Watch for non-recurrent items (e.g. discontinued operations).
- Interest burden = EBT/EBIT. Higher ratio → less drag from interest and other non-operating items.
- Operating (EBIT) margin = EBIT/Revenue. Higher may signal better cost control, given the nature of operations.
Above EBIT sits the gross profit margin (Gross profit/Revenue), which reflects pricing and product cost — a premium strategy (e.g. Ted Baker) earns higher gross margins than a value/volume strategy (e.g. Primark). The operating margin additionally reflects control of mostly-fixed overhead.
Unusual or infrequent items — gains/losses on disposal, impairments, restructuring — distort margins. Under both IFRS and US GAAP, items material to understanding performance are disclosed separately. Discontinued operations (a disposed component) are shown net at the bottom of the income statement, with their assets and liabilities aggregated on the balance sheet as held for sale. Strip these out before drawing conclusions about recurring profitability.
Operating leverage
The gap between gross margin and operating margin reveals operating leverage — the ratio of fixed to variable costs. High operating leverage increases the sensitivity of income to small changes in revenue: it amplifies both the rewards of revenue growth and the risk of revenue falls. Pharma/tech firms (high R&D) tend to have high operating leverage; retailers, low.
High vs low operating leverage
Two firms each grow revenue 20% (100 → 120). Firm H: COGS (variable) 40 → 48, opex (fixed) 30. Firm L: COGS 20 → 24, opex (fixed) 10. Compare the change in operating margin.
Show solution
Firm H (fixed/variable ≈ 0.75): operating profit 30 → margin rises from \(10/100=10\%\) to \(18/120=15\%\). Firm L (fixed/variable ≈ 0.13): operating profit margin rises only from \(10/100=10\%\) to \(14/120\approx12\%\). With high fixed costs, variable costs rise with revenue but fixed costs do not, so margins jump — gross margins, being mostly variable, stay stable while operating margins swing. High operating leverage means margins are very sensitive to revenue — hence risky (the same mechanism magnifies losses when revenue falls).
H: 10% → 15%; L: 10% → 12% — leverage amplifies the margin moveEfficiency and activity ratios
Asset turnover = Revenue / Avg total assets measures efficiency, but reflects strategy: labour-intensive services (consultancy, advertising) show high turnover; capital-intensive manufacturing shows low. Two other efficiency ratios — fixed-asset turnover and working-capital turnover — are not recommended (depreciation distorts the first; the second is meaningless near zero or negative). Prefer the activity ratios:
- DSO (days of sales outstanding) — the credit policy toward customers. Supermarkets (cash) have low DSO; food manufacturers (credit) high. Very high DSO may flag a weak customer base and earnings-quality issues.
- DOH (days of inventory on hand) — inventory management. Supermarkets low (perishables); jewellers high. High DOH may signal obsolescence or fashion risk.
- Days of payables — supplier financing. Purchases are usually estimated as \(\text{COGS}+\text{ending inventory}-\text{beginning inventory}\). High days payable may mean bargaining power — or a looming liquidity problem.
Liquidity ratios
The cash conversion cycle measures the time from investing in working capital to collecting cash:
If \(\text{DOH}+\text{DSO}>\) days payable, the firm may need extra funding; if it is less, no liquidity strain is apparent. The current ratio has a benchmark of 1, but a value below 1 can be perfectly acceptable for cash-based retailers.
Marks & Spencer — why a current ratio under 1 is fine
FY2018: DSO ≈ 6, DOH ≈ 41, days' payables ≈ 50, current ratio ≈ 0.67. Is M&S facing a liquidity crisis?
Show solution
Cash conversion cycle \(=41+6-50=-3\) days — negative. Suppliers are paid only after inventory has been sold and (mostly cash) customers have paid, so no external funding is needed to settle payables. A current ratio below 1 is affordable. But note the limits: a current ratio above 1 does not guarantee safety if inventory is hard to liquidate (check DOH) — hence the quick ratio (excludes inventory) and the cash ratio (most conservative). Read the quick ratio alongside DSO: a high value driven by low-quality receivables is a red flag.
CCC = −3 days → current ratio of 0.67 is not a concernSolvency ratios
Solvency is the ability to meet long-term obligations.
Debt is cheaper than equity — there is a contractual repayment obligation (unlike equity) and interest is tax-deductible (unlike dividends) — and its discipline (covenants) can curb management, though it also limits flexibility. Firms may avoid equity markets to protect proprietary information. But high debt/equity plus high uncertainty about future performance is a risky combination. Net debt can be negative (excess cash), which mitigates the risk — but check how that cash is generated (the cash-flow statement). Interest coverage of 1 or below signals high financial risk; very large values may simply mean little external capital is used, so the ratio loses meaning.
Evaluating ratios — benchmarks and segments
No authoritative body fixes ratio formulas; this course follows CFA guidelines. The key question is whether a ratio sits in a reasonable range — which requires a benchmark. The best comparison is firms in the same industry (similar operations, environment, business risk). Because firms have several lines of business, use the segment-reporting disclosures.
A component that (i) engages in activities generating revenue/expense, (ii) whose results are regularly reviewed by management, and (iii) for which discrete financial information is available. Quantitative thresholds: a segment is reportable if it is >10% of combined assets, revenue or profit/loss (absolute), and reportable segments together must cover >75% of total external revenue. Pro: see the firm through management's eyes. Cons: agency issues (hiding low-profit segments that are being subsidised) and proprietary costs (concealing high-growth segments to avoid attracting competition).
Beyond industry, refine the peer set by age (start-ups vs mature — e.g. R&D-heavy young tech has suppressed margins), geography (macro and geopolitics), growth rate (similar financing/liquidity constraints), relative strength, similar operations, and size (scale effects). At the industry level a PEST scan — Political, Economic, Socio-cultural, Technological — frames the forces on revenues and costs (regulation, GDP/inflation/rates, lifestyle shifts, and technological disruption such as smartphones for Nokia).
Ratios make firms comparable but only raise questions; pair flows with average stocks. ROE decomposes via DuPont into margin × turnover × leverage (and further into tax burden, interest burden and EBIT margin), so you can see where performance comes from — and beware ROE flattered by leverage. Read profitability with an eye on non-recurrent items and operating leverage; assess working-capital efficiency through the cash conversion cycle; judge liquidity (current/quick/cash) and solvency (debt/equity, interest coverage) in context — a retailer's sub-1 current ratio can be fine. Above all, every ratio needs a benchmark, and segment disclosures help build one.