Gross margin measures the percentage of revenue remaining after subtracting the cost of goods sold (COGS), showing how efficiently a company produces and sells its products or services.
A software company has $10 million in revenue and $2 million in COGS (server costs, third-party APIs, customer support). Gross profit = $10M − $2M = $8M. Gross margin = $8M ÷ $10M = 80%. For every $1 of revenue, $0.80 remains after direct production costs. A retailer with $10M revenue and $7M COGS has a gross margin of only 30%. Both companies earn $10M, but the software company has $5M more to cover operating expenses, R&D, and taxes.
Gross margin varies dramatically by industry. Software companies typically achieve 70-85% gross margins because digital products cost nearly nothing to replicate. Luxury goods companies achieve 60-75% margins through brand pricing power. Grocery stores operate on 20-30% gross margins due to intense competition. Commodities businesses (steel, oil refining) may see margins of 10-20% that fluctuate with raw material prices. Comparing gross margins across industries is meaningless — always compare within the same sector.
Gross margin is the first and most fundamental measure of a company's pricing power and production efficiency. A rising gross margin means the company is either raising prices (demand exceeds supply), reducing production costs (improved efficiency or cheaper inputs), or shifting toward higher-margin products. Any of these is a positive signal. Conversely, declining gross margins suggest increasing competition, rising input costs, or a shift toward lower-margin products — all warning signs.
For investors, gross margin stability is as important as the level itself. A company with a consistent 60% gross margin is generally preferable to one with margins swinging between 40% and 70%. Stable margins indicate pricing power, predictable costs, and a defensible competitive position. Volatile margins suggest a commodity-like business subject to forces beyond management's control.
LVMH (Moët Hennessy Louis Vuitton) achieves gross margins of approximately 68-70% across its luxury portfolio. A Louis Vuitton handbag that costs $200 to produce sells for $2,000 — a 90% gross margin on that specific product. This pricing power comes from decades of brand building, exclusivity, and perceived value. During recessions, LVMH's margins barely budge because its wealthy customer base is relatively price-insensitive. This is why luxury stocks typically command premium valuations.
Calculate gross margin for each product line: A company overall margin is an average that can hide problems. If one product has 80% margins and another has 20%, the mix shift toward the lower-margin product will erode overall margins over time.
Compare gross margin to competitors to gauge pricing power: If Company A achieves 65% margin while its peers average 45%, Company A has a genuine competitive advantage — proprietary technology, brand loyalty, or superior scale.
Watch for gross margin expansion during growth: Software companies often see gross margins increase as they scale (fixed infrastructure costs spread over more revenue). This 'operating leverage' is a powerful driver of earnings growth.
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Software: 70-90%. Pharmaceuticals: 60-80%. Retail: 20-40%. Manufacturing: 15-30%. Gross margin shows how efficiently a company produces its goods or services. Rising gross margins over time signal pricing power or improving efficiency — one of the most bullish signals a company can show.
Gross margin vs. net margin?
Gross margin = (Revenue - COGS) ÷ Revenue. Net margin = Net Income ÷ Revenue. Gross margin shows production efficiency before overhead, marketing, and R&D. Net margin shows overall profitability after everything. A company with 80% gross margin but 5% net margin is spending heavily on growth (like Amazon for years).
Can gross margin be over 100%?
No. Gross margin is capped at 100% (when COGS = $0). However, some software companies approach 95%+ because the cost of serving each additional customer is nearly zero. This is why software businesses are so valuable — each dollar of incremental revenue generates almost pure profit.