Financial Ratios and Their Uses

With statistical tools for measuring returns and risk in hand, you can now turn to analyzing the companies behind the securities. Financial ratios translate raw financial statements into meaningful comparisons.


Liquidity Ratios - Can the Company Pay Its Bills?

Liquidity ratios measure a company's ability to meet short-term obligations - debts and expenses due within one year.

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

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:

RatioFormulaIncludes Inventory?What It Tells You
Current RatioCurrent Assets / Current LiabilitiesYesGeneral short-term solvency
Quick Ratio(Current Assets - Inventory) / Current LiabilitiesNoImmediate 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.

Leverage Ratios - How Much Debt Is the Company Using?

Leverage ratios examine a company's capital structure - the mix of debt and equity used to finance operations.

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.

Using 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.