Gross Margin
Gross Profit Margin
💡 What is Gross Margin?
In one line: Gross Margin (Gross Profit Margin) is the percentage of profit left after selling a product—in other words, a basic measure of how profitable a product is. It shows what percentage of revenue remains as gross profit after subtracting the cost of goods sold (the direct costs of making the product) from revenue.
In English, it is called Gross Profit Margin, Gross Margin, or GPM.
Gross Margin is the most basic measure of a company's profitability. Let's use an analogy: imagine you run a snack shop. You sell one serving of tteokbokki for $5, and the ingredients (rice cakes, sauce, fish cakes) cost you $2. Your gross profit is $3, and your Gross Margin is 60%. That $3 has to cover your other costs: rent, employee wages, electricity, and so on. So the higher the Gross Margin, the more room you have to cover other costs and still make a profit.
Gross Margin is important for investing because it shows both a company's pricing power and cost efficiency at the same time. A high Gross Margin means customers are willing to pay a high price because the product or service has unique value, or the company manages its production costs very efficiently.
In the real U.S. stock market, the differences in Gross Margin between companies are dramatic. Microsoft (MSFT), a software company, has a Gross Margin of about 70%. That's because selling software that has already been developed to millions of additional users costs almost nothing. On the other hand, Walmart (WMT), a grocery distribution company, has a Gross Margin of only about 24%. This is because the retail business—buying goods wholesale and selling them at retail—naturally has thin margins.
One thing to note is that companies with higher Gross Margins are more resilient during economic downturns. A company with a 70% Gross Margin can still make a profit even if revenue drops 20%, but a company with a 15% Gross Margin can quickly slip into a loss with even a small revenue decline. This is why long-term investors prefer companies with high Gross Margins. Nvidia (NVDA) has a Gross Margin of around 72%, reflecting its dominant position in the AI semiconductor market.
English Terms
Gross Profit Margin, Gross Margin, GPM, Gross Profit Percentage
Related Concept
The opposite of cost-of-goods-sold ratio
📐 How to Calculate It
Gross Margin = (Revenue − Cost of Goods Sold) / Revenue × 100
COGS (Cost of Goods Sold) = costs directly spent on making the product or providing the service
Gross Profit = Revenue − Cost of Goods Sold
COGS (Cost of Goods Sold) only includes costs directly spent on making the product. For a manufacturing company, this includes raw materials, parts, factory worker wages, and depreciation of manufacturing equipment. For a software company, it includes server hosting costs and cloud infrastructure costs. Selling, General & Administrative expenses (SG&A) such as sales team wages, marketing costs, and headquarters rent are not included in COGS.
Real example — Nvidia (NVDA):
Revenue: about $61 billion (FY2024)
COGS: about $17 billion (chip manufacturing outsourcing, packaging, etc.)
Gross Profit: $61B − $17B = about $44 billion
Gross Margin = $44B / $61B × 100 = about 72% → Out of every $100 in revenue, $72 becomes gross profit
Comparison example — Walmart (WMT):
Revenue: about $648 billion
COGS: about $490 billion (cost of purchasing goods)
Gross Profit: $648B − $490B = about $158 billion
Gross Margin = $158B / $648B × 100 = about 24% → Thin margins are structural to the retail business
Even with similar gross profit dollar amounts, different Gross Margins mean completely different business structures. Nvidia's revenue is only one-tenth of Walmart's, but because its Gross Margin is three times higher, its gross profit dollar amount is roughly similar. This shows the difference: Nvidia is a "high-margin, sell less but earn more" business, while Walmart is a "low-margin, sell more to earn more" volume business.
📊 How to Interpret It (Range Guide)
0–20% — Very Low Margin
This range is commonly seen in distribution (Walmart, Costco), groceries, and raw materials companies. These are industries where it is hard to differentiate products and price competition is fierce. With this kind of margin, they still have to cover operating expenses, labor, and R&D, so economies of scale (selling in massive volume) are the key to survival. Costco (COST) has a Gross Margin of only about 13%, but it generates profit through its membership model and massive purchasing power.
20–40% — Typical Margin
This is the typical range for manufacturing, traditional consumer goods, and energy companies. General Motors (GM) is around 20%, ExxonMobil (XOM) around 30%, and Procter & Gamble (PG) around 50%—spread across the lower to upper end of this range. Margins vary widely depending on the brand value or technological differentiation of the product.
40–60% — High Margin
This range is seen in companies with strong brand power, patent protection, and high barriers to entry. Coca-Cola (KO) around 60%, Apple (AAPL) around 46%, and Johnson & Johnson (JNJ) around 69% are representative examples. A Gross Margin at this level shows room to raise prices and a competitive advantage that can defend margins even during economic downturns.
60% and above — Very High Margin
This is the top margin range, seen in software, SaaS, pharmaceuticals/biotech, and luxury brand companies. Microsoft (MSFT) around 70%, Nvidia (NVDA) around 72%, and Visa (V) around 80% are representative examples. These are either business models where a product developed once can be sold repeatedly with little additional cost, or companies with a monopolistic position. This is the range investors like the most.
🔄 Comparison with Similar Metrics
Gross Margin vs. Operating Margin
Gross Margin subtracts only COGS, while Operating Margin also subtracts SG&A and R&D expenses. If Gross Margin is high but Operating Margin is low, it means the company is spending too much on sales, marketing, or R&D. On the other hand, if both margins are high, the company is excellent at managing costs. A company with a 70% Gross Margin but only a 20% Operating Margin is spending 50 percentage points on operating costs.
Gross Margin vs. Profit Margin (Net Margin)
Profit Margin (Net Margin) is the percentage of final profit after subtracting all costs (COGS + operating expenses + interest + taxes). Gross Margin is the "starting point" of the profit structure, while Profit Margin is the "final result." Companies with high Gross Margins tend to have high Profit Margins too, but exceptions exist due to excessive debt or high tax rates.
Gross Margin vs. ROE (Return on Equity)
Gross Margin measures profitability based on revenue, while ROE measures profitability based on capital. A high Gross Margin means you keep a lot of profit from each dollar of revenue; a high ROE means you earn a lot of profit relative to the capital you invested. A company with both high (e.g., Microsoft) is the highest quality—excellent in both revenue profitability and capital efficiency.
🎯 Practical Strategies
Strategy 1: Screen for High Gross Margin Companies
This strategy filters investments to only companies with a Gross Margin of 50% or higher. A high Gross Margin means pricing power, competitive advantage, and resilience during downturns all at once. Such companies can defend their margins even during a recession, making them suitable for long-term investing. You can easily find candidate stocks on the Finviz screener by filtering for "Gross Margin > 50%."
Strategy 2: Analyze the Gross Margin Trend
The trend may be more important than the absolute Gross Margin number. If Gross Margin is improving every quarter, it means positive changes such as successful price hikes, cost reductions, or product mix improvements (a higher share of high-margin products). On the other hand, a declining Gross Margin trend could indicate problems such as intensified price competition, rising raw material costs, or a higher share of low-margin products. Tesla's (TSLA) Gross Margin fell from 30% to 18% in 2022–2023 due to a price-cut war, and this was a major cause of its stock price decline.
Strategy 3: Compare Margins Within the Same Industry to Spot Competitive Advantage
Within the same industry, a company with a higher Gross Margin than its peers has a superior competitive advantage. In the semiconductor industry, Nvidia's (NVDA, 72%) Gross Margin is much higher than Intel's (INTC, about 40%) because Nvidia's GPUs hold a dominant position in the AI market. This gap reflects the depth of the company's "moat" (a protective barrier against competition).
Strategy 4: Monitor Gross Margin During Earnings Season
Pay attention to changes in Gross Margin when quarterly earnings are released. If revenue is growing but Gross Margin is falling, the "quality" has worsened due to more discounting or selling more low-margin products. On the other hand, if revenue dips slightly but Gross Margin improves, it is a positive signal that the company is focusing on more profitable products. This is why analyst conference calls include more questions about Gross Margin than almost any other topic.
Strategy 5: Margin Expansion Investment Strategy
This strategy invests in companies whose Gross Margin is currently average but has structural room to improve. For example, Amazon (AMZN) has seen its overall Gross Margin steadily improve as the share of high-margin cloud (AWS) and advertising businesses grew within its low-margin e-commerce business. Companies whose margins expand through shifts in business mix can see their stock prices rise sharply thanks to the dual effect of revenue growth and margin improvement.
🏭 Industry Characteristics
Software / SaaS
The software sector has the highest Gross Margin of any sector. Microsoft (MSFT) is around 70%, Adobe (ADBE) around 88%, and Salesforce (CRM) around 75%. This is because once software is developed, almost no additional cost is needed to sell it. SaaS (subscription-based software) in particular has high and stable margins.
Semiconductors
Gross Margin in the semiconductor industry varies widely depending on how differentiated the product is. High-value chips like Nvidia (NVDA, 72%) and Broadcom (AVGO, 75%) boast very high margins, while commodity chips where competition is fierce, like Intel (INTC, 40%) or Micron (MU, 25–35%), are relatively lower. The more irreplaceable the product—like AI GPUs—the higher the margin.
Retail / Distribution
Retail is structurally one of the lowest-margin sectors. Costco (COST) is around 13%, Walmart (WMT) around 24%, and Target (TGT) around 27%. This is the limit of the retail model—buying goods and selling them—and price competition is fierce. Amazon (AMZN) has a higher overall Gross Margin at around 48% because, in addition to retail, it has cloud and advertising revenue.
Pharmaceuticals / Biotech
Patented drugs have very high Gross Margins. Johnson & Johnson (JNJ) is around 69%, Merck (MRK) around 75%, and Eli Lilly (LLY) around 80%. This is because the raw material cost of a single pill is extremely low while the selling price is high. However, once a patent expires and generic competition begins, Gross Margin can drop sharply, so it's essential to check the patent portfolio.
⚠️ Cautions
Cross-industry comparisons are limited
You can't conclude that software is three times better just because a software company has a 70% Gross Margin and a retail company has a 24% Gross Margin. Even with a low Gross Margin, retail generates profit through enormous sales volume. Walmart's gross profit of $158 billion is larger than the total revenue of most software companies. You must always compare within the same industry.
COGS classification criteria can differ
Each company may include different costs in COGS. Some companies put logistics costs in COGS, while others classify them as operating expenses. So even within the same industry, Gross Margin can differ by 5–10 percentage points.png, and for accurate comparison, it's ideal to check the COGS composition of each company.
A high Gross Margin does not guarantee high net profit
Even with a Gross Margin of 70%, if R&D, marketing, and sales costs are excessive, net profit can be very small or even negative. Many early-stage SaaS companies have a Gross Margin above 80% yet still post losses because of high operating costs. So don't judge profitability by Gross Margin alone—also check Operating Margin and Profit Margin.
Watch out for seasonal fluctuations
Some companies see Gross Margin vary significantly from quarter to quarter. Retailers see margins dip during the year-end discount season (Black Friday), and energy companies see margins shift each quarter with oil prices. For this reason, year-over-year (YoY) or annual comparisons are more accurate.
✅ Investor Checklist
☑ Is the Gross Margin above the industry average?
☑ Has the Gross Margin trend been stable or improving over the past 3–5 years?
☑ Have you checked Operating Margin and Profit Margin as well to understand the cost structure?
☑ Do you understand the reason behind the high Gross Margin (brand, patents, economies of scale)?
☑ Have you considered the impact of raw material price changes on Gross Margin?
☑ Is the Gross Margin gap versus competitors widening or narrowing?
❓ Frequently Asked Questions (FAQ)
Q. Is a company with a high Gross Margin always a good investment?
A. Not necessarily. Even a company with an 80% Gross Margin will end up in the red if operating costs (marketing, R&D, wages) consume 85% of revenue. Many early-stage SaaS companies have this structure. So you must check Operating Margin and Profit Margin along with Gross Margin. A truly high-quality company has both a high Gross Margin and a high Operating Margin.
Q. Why do software companies have higher Gross Margins than manufacturers?
A. Once software is developed, it costs almost nothing to sell it to additional customers. The cost of selling to the first customer is nearly the same as selling to the millionth customer (the marginal cost is close to zero). In contrast, manufacturing requires additional raw materials, parts, and labor for every extra unit produced. This is the structural advantage of the software industry, and payment networks like Visa (V) or Mastercard (MA) share similar characteristics, boasting Gross Margins around 80%.
Q. How should I interpret a sudden drop in Gross Margin?
A. A sharp drop in Gross Margin is a very serious warning sign. Possible causes include (1) price-cut competition (Tesla's 2023 price war), (2) a sudden spike in raw material prices (energy crisis), (3) a worse product mix (a higher share of low-margin products), and (4) temporary cost increases from entering new businesses. The response depends on the cause: if it's structural (intensifying competition), profitability can worsen long-term; if it's temporary (raw material prices), recovery is possible.
Q. Retailers (Walmart, Costco) have low Gross Margins—how do they make money?
A. The key to retail is "small profits, quick returns" (high volume, low margins). The margin is thin, but the enormous scale compensates (Walmart's annual revenue is $648 billion). Costco's Gross Margin is only 13%, but its annual membership fee revenue alone reaches about $4.6 billion. Since membership fees have no COGS, they are pure profit. This is how retailers can generate sufficient profit even with low Gross Margins, thanks to scale and operational efficiency—and you should never judge a retailer's value by Gross Margin alone.
🇰🇷 Additional Notes for Investors
Korean companies' Gross Margins are generally lower than U.S. companies. Samsung Electronics' semiconductor division has a Gross Margin of about 40–50%, while Nvidia's is 72%. This gap comes from the difference in product characteristics: memory semiconductors (commodity) versus AI GPUs (high value-added). Investing in U.S. stocks has the big advantage of giving you access to high-margin companies that are hard to find in Korea.
When Korean retail investors screen U.S. stocks, using a Gross Margin of 50% or higher as the basic filter can effectively pick out high-quality companies. You can check the Gross Margin directly when searching for stocks on Finviz, and the quarterly Gross Margin trend is also available in the Financials tab on Yahoo Finance.
During earnings season, changes in Gross Margin have a big impact on stock prices. In particular, Tesla's (TSLA) automotive Gross Margin is the core focus for investors—the stock plunges when margins fall and soars when they improve. Keeping an eye on Gross Margin changes during earnings reports released at night Korean time can be a big help in making buy/sell decisions the next day.