The fine print of trading and investing


Section

Earnings

The numbers under the earnings-per-share headline: what the company kept from each dollar of sales, what the adjusted figure left out, and how fixed costs make profits swing harder than revenue.

Earnings per share is the last line of a long calculation, and several lines above it can move the result without the business changing at all. A lower share count from buybacks, a one-time tax benefit or an adjustment that removes stock-based pay can all lift the headline while the operating margin shrinks.

Read the release from the top. Revenue first, then gross and operating margin, then the reconciliation between GAAP and adjusted figures, and only then the per-share number. The profit margin calculator works out gross, operating and net margin and earnings per share from any income statement, and the free course on earnings reports walks through the statements in order.

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Answers

Concepts

  • Contribution margin

    The share of each sale left after variable costs, available to cover fixed costs and then produce profit; expressed per unit in dollars or as a percentage of price.

  • Operating leverage

    The degree to which a company's operating income changes faster than its revenue because a large share of its costs are fixed and do not move with sales.

Quizzes

Calculators

  • Profit Margin Calculator

    Gross, operating and net margin from an income statement, and earnings per share from the share count.