Quick Answer
Financial ratios translate a company's financial statements into comparisons an adviser can use. Liquidity measures (current ratio, quick ratio, net working capital) test short-term obligations. Debt-to-equity tests leverage, and debt service coverage tests whether income covers payments. No ratio means anything alone; benchmark every one against peers and history.
These ratios come from the same balance sheet but answer different questions: can the company pay bills due this year, and how much of its financing comes from debt rather than equity. The exam tests both the formulas and when each ratio applies.
Can the Company Pay Its Bills (Liquidity Ratios)?
Liquidity ratios measure a company's ability to meet short-term obligations: debts and expenses due within one year.
What Is the Current Ratio?
- Formula: Current Ratio = Current Assets / Current Liabilities
- Current assets include cash, accounts receivable, marketable securities, and inventory
- A ratio greater than 1.0 generally indicates adequate liquidity (more assets than obligations)
- A ratio less than 1.0 means the company may struggle to pay short-term debts
What Is the Quick Ratio (Acid-Test Ratio)?
- Formula: Quick Ratio = (Current Assets - Inventory) / Current Liabilities
- Excludes inventory because inventory is the least liquid current asset; it takes time to sell and may need to be discounted
- More conservative than the current ratio
- Better indicator of a company's immediate ability to pay obligations
- A quick ratio of 1.0 or higher is generally considered healthy
Think of it this way: The quick ratio asks, "If we had to pay all our short-term debts right now, could we do it without selling inventory?" Since inventory can take months to convert to cash (and might sell at a discount), the quick ratio gives a more realistic picture of immediate payment ability.
Comparison:
| Ratio | Formula | Includes Inventory? | What It Tells You |
|---|---|---|---|
| Current Ratio | Current Assets / Current Liabilities | Yes | General short-term solvency |
| Quick Ratio | (Current Assets - Inventory) / Current Liabilities | No | Immediate payment ability |
Exam Tip: Gotchas
- The quick ratio is always equal to or less than the current ratio for the same company (because it subtracts inventory from the numerator). If a question gives you both ratios and one is higher, the higher one is the current ratio.
What Is Net Working Capital?
- Formula: Net Working Capital = Current Assets - Current Liabilities
- It answers the same question as the current ratio, but returns a dollar amount instead of a ratio
- A positive figure means current assets cover the coming year's obligations with a cushion left over
- A current ratio above 1.0 and positive net working capital always travel together, because both compare the same two numbers
Exam Tip: Gotchas
- Net working capital and the current ratio are not interchangeable when comparing two companies. A large company can have far more net working capital in dollars while running a weaker current ratio than a small competitor. Use the ratio to compare companies of different sizes, and the dollar figure to size one company's cushion.
How Much Debt Is the Company Using (Leverage Ratios)?
Leverage ratios examine a company's capital structure: the mix of debt and equity used to finance operations.
What Is the Debt-to-Equity Ratio?
- Formula: Debt-to-Equity Ratio = Total Debt / Shareholders' Equity
- Measures financial leverage: how much the company relies on borrowed money versus owner investment
- Higher ratio = greater reliance on debt = higher financial risk
- Lower ratio = more equity-financed = lower financial risk
- Critical for assessing whether a company can weather economic downturns
- Heavily leveraged companies face fixed interest payments regardless of revenue
- During recessions, high debt-to-equity companies are more vulnerable to default
Investment Implications:
- High leverage amplifies both gains and losses for equity holders
- Companies with high debt-to-equity may offer higher potential returns but carry significantly more risk
- Debt-heavy companies are particularly vulnerable during rising interest rate environments (refinancing becomes more expensive)
Think of it this way: Leverage is like borrowing money to buy a house. If the house goes up in value, your return on investment is amplified because you only put down a fraction of the price. But if the house drops in value, you still owe the full mortgage. High debt-to-equity works the same way for companies.
Exam Tip: Gotchas
- Leverage is not the same as liquidity. A company can be highly leveraged (lots of debt) but still liquid (able to pay short-term bills). These are separate concepts tested separately.
What Is the Debt Service Coverage Ratio?
- Formula: Debt Service Coverage Ratio = Operating Income / Total Debt Service
- Debt service is the principal and interest coming due over the period, so the ratio asks whether earnings cover the payments
- A ratio above 1.0 means operating income covers the payments; below 1.0 means the company must find cash elsewhere
- Lenders and analysts use it alongside debt-to-equity: one measures how much the company owes, the other measures whether it can make this year's payments
Exam Tip: Gotchas
- Debt-to-equity and debt service coverage can point opposite ways. A company with modest total debt but thin operating income can fail the coverage test, and a heavily leveraged company with strong cash generation can pass it. Read which one the question asks for.
How Do You Use Ratios Effectively?
Financial ratios are only meaningful in context. A single ratio for a single company at a single point in time tells you almost nothing.
How to use ratios properly:
- Compare to industry peers: A current ratio of 1.5 might be excellent in retail but poor in software
- Compare to competitors: Is the company more or less leveraged than its closest rivals?
- Compare to historical trends: Is the company's liquidity improving or deteriorating over time?
- Look at multiple ratios together: No single ratio gives the complete picture
Exam Tip: Gotchas
- All ratios are meaningless in isolation. The exam tests whether you understand that ratios must be compared to industry averages, competitors, and the company's own history. A "good" or "bad" ratio depends entirely on context.
- A current ratio below 1.0 is a warning sign, not a guarantee of bankruptcy. The company may have access to credit lines or other resources.
What Should You Check on Exam Day?
- Can you state the current ratio, quick ratio, and net working capital formulas, and explain why the quick ratio excludes inventory?
- Do you know the quick ratio is always equal to or less than the current ratio for the same company?
- Can you state the debt-to-equity and debt service coverage formulas, and explain that one measures how much is owed while the other measures whether income covers this year's payments?
- Do you know leverage and liquidity are separate concepts, so a company can be highly leveraged yet still liquid?
- Can you explain why every ratio needs a benchmark (industry peers, competitors, or the company's own history) before it means anything?