Financial Statements · Stocks Explained
Read a period, not a snapshot
An income statement records financial performance over a period. Confirm the reporting dates and units before comparing quarters or years. A company reporting in thousands can look dramatically smaller than one reporting in millions if the labels are ignored.
Revenue reflects recognised sales under accounting rules, which can differ from cash collected during the same period. Gross profit subtracts the direct costs included in cost of sales. Operating profit then incorporates operating expenses.
Build the profit bridge
Consider a hypothetical business with $100 million of revenue and $60 million of cost of sales. Gross profit is $40 million and gross margin is 40%. Subtract $25 million of operating expenses to reach $15 million of operating profit.
If net interest expense is $3 million and tax is $3 million, net income is $9 million. With 6 million weighted average common shares and no preferred claim, simple EPS is $1.50. The margins and share count each answer a different question.
Look for the source of change
Revenue can rise because of higher unit volume, price increases, acquisitions or currency movements. These drivers have different implications. Selling more units to existing customers is not the same as buying another business and adding its sales.
Compare gross and operating margins together. A business can improve production efficiency while spending heavily on sales or product development. A lower current operating margin may reflect either sensible investment or weakening economics. The explanation needs evidence.
Do not stop at adjusted profit
A reported gain from selling an asset can lift profit without improving recurring operations. Conversely, an expense described as unusual may recur frequently. Read the reconciliation and inspect several years.
Compare similar definitions across peers and preserve the reported result alongside any adjustment you make. An attractive adjusted number does not replace the need to understand cash flow, financing and dilution.
Try it yourself
Revenue is $80 million, cost of sales is $48 million and operating expenses are $20 million. Calculate gross margin and operating margin.
Show the worked answer
Gross profit is $32 million, so gross margin is 40%. Operating profit is $12 million, so operating margin is 15%. Interest and tax have not yet been deducted.
Further reading
Educational material. Examples are hypothetical and do not recommend a security or a personal allocation.
