4. Fundamentals and earnings

The three financial statements (FA)

Every company reports three tables (the income statement, the balance sheet and the cash flow statement), and FA shows all three by year or quarter.

  • 5 min
  • 3 questions
  • Lesson 1 of 5

Why you would care

Is this a good business, in numbers? "Microsoft earned 134 billion last year." Earned how? On how much in sales? Did that profit arrive as cash, or is it stuck in unpaid bills? The three statements answer those questions. Every ratio, screen and valuation in the rest of this chapter is built on them.

The idea from scratch

Meet Lemonade Co., a tiny fictional company (illustrative numbers, in thousands of dollars).

1. The income statement: one period, top to bottom

It starts with sales and subtracts costs, layer by layer:

LineLemonade Co.Meaning
Revenue1,000Everything sold this year
Cost of revenue-400Lemons, sugar, cups: costs that grow with each sale
Gross profit600What is left to pay for everything else
Operating expenses-350Salaries, rent, marketing, research (R&D, SG&A)
Operating income250Profit from running the business
Interest-20The cost of its loans
Tax-50
Net income180The bottom line: profit for shareholders

Divide net income by the number of shares and you get EPS (earnings per share). With 100 shares, EPS = 1.80.

Diagram: Income statement: profit over the year leads to Cash flow: profit turned into cash (net income); Cash flow: profit turned into cash leads to Balance sheet: cash on the last day (change in cash); Income statement: profit over the year leads to Balance sheet: cash on the last day (profit kept).

See it in Gloom

Gloom screenshot: FA MSFT on the Income tab, annual view
FA MSFT on the Income tab, annual view: revenue at the top, net income lower down, then margins and per-share numbers. Values in billions of dollars. Historical example.

open ittype FA MSFT. Tabs Income, Cash Flow, Balance Sheet on top; Annual / Quarterly on the right (p switches).

  1. Columns: TTM 2026-06-30 (trailing twelve months: the last four quarters added up) and fiscal years ending June 30 (Microsoft's fiscal year ends in June).
  2. Revenue (B) 331.8 +18%: 331.8 billion dollars of sales, up 18% on the year before (the YoY change).
  3. Gross Profit 225.5, Operating Inc 155.2, Net Income 133.7: the layers of the table above.
  4. Margins: Gross 67.9%, Operating 46.8%, Net 40.3%. Each layer as a share of revenue. Microsoft keeps 40 cents of profit per dollar of sales.
  5. Per Share 17.95: earnings per share for the year.
  6. e expands every group, c collapses them; the arrows on the left open one group.

Practice and recap

Try it3 tasks
  1. Lemonade Co.'s gross margin and net margin? (600 / 1,000 = 60%; 180 / 1,000 = 18%.)
  2. In the screenshot, how much did Microsoft spend on R&D, and what share of revenue is that? (35.56 billion, 10.7%.)
  3. Check the balance sheet rule for Lemonade Co.: 100 + 300 + 600 = 1,000. Yes.
Common mistakes4 mistakes
  • Treating net income as cash. Check operating cash flow and free cash flow.
  • Comparing a quarter with a full year. Use the same period type, or TTM.
  • Forgetting fiscal years: Microsoft's "2026" ended in June 2026.
  • Reading equity as the company's market value. Equity is an accounting number; market cap is price x shares.
Check yourself3 questions
  1. Which statement answers "what does the company owe right now"?
  2. Net income 50, depreciation 10, capex 30, nothing else changes. Free cash flow?
  3. What is TTM?
Answers
  1. The balance sheet (liabilities).
  2. Operating cash flow 60 (50 + 10), minus capex 30 = 30.
  3. Trailing twelve months: the last four quarters added up.
Words in this lesson11 words
income statement
Revenue minus costs over a period.
gross profit / operating income / net income
Profit after direct costs / after running costs / after everything.
EPS
Net income divided by the number of shares.
balance sheet
What a company owns (assets) and owes (liabilities) on one date, and the owners' share (equity).
equity
Assets minus liabilities: the shareholders' part.
cash flow statement
Where cash came from and went: operating, investing, financing.
capex
Money spent on long-lasting things like equipment.
depreciation
Spreading the cost of equipment over its useful years.
free cash flow (FCF)
Operating cash flow minus capex.
TTM
Trailing twelve months.
YoY
Year over year: compared with the same period a year earlier.

Educational material about reading market data, not investment advice.