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Do you often feel lost when picking stocks? Gross margin pierces the fog, helping you quickly identify high-quality and high-growth companies. Many investors focus on gross margin because it reflects a company’s multifaceted strengths:
By focusing on these metrics, you can efficiently screen out companies worthy of deeper research.

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When analyzing companies, you often encounter the term “gross margin.” Gross margin is a key metric for measuring a company’s profitability. You can use it to understand how much revenue a company retains after deducting direct costs from selling products or services.
The table below summarizes the standard definition and calculation method of gross margin in financial analysis:
| Source | Definition | Calculation Method |
|---|---|---|
| Growfin | Gross margin measures a company’s production efficiency or ability to control direct production costs. | Subtract the cost of goods sold (COGS) from revenue, then divide that number by revenue, expressing the result as a percentage. |
| Fool | Gross margin is a measure of a company’s profitability, typically expressed as a percentage. | Gross profit (revenue minus cost of goods sold) divided by total revenue, resulting in a decimal ratio, multiplied by 100 to convert to a percentage. |
You can use this formula: Gross Margin = (Revenue - Cost of Goods Sold) / Revenue. The result is typically expressed as a percentage. By using gross margin to pierce the fog, you can more clearly see a company’s profitability structure and cost control capabilities.
When conducting actual analysis, you’ll find that gross margin is influenced by multiple factors. Here are common influencing factors:
When analyzing companies, you should consider these factors comprehensively to more accurately assess changes in gross margin and a company’s true profitability.
When analyzing companies, you often notice that high gross margin companies exhibit distinct characteristics. These characteristics not only reflect a company’s profitability but also its market position. You can identify high gross margin companies through the following aspects:
In actual analysis, you can use gross margin to pierce the fog, quickly screening out high-quality companies with sustained profitability and market competitiveness. Higher gross margins also indicate that a company earns more profit per dollar of sales, directly reflecting its operational efficiency and management capabilities.
Tip: If you find that a company’s gross margin is consistently above the industry average, it often means it has unique advantages in products, branding, or technology, making it worthy of further attention.
In investment analysis, you often use gross margin to pierce the fog, determining whether a company has long-term competitive advantages. High gross margin companies typically have the following competitive advantages:
You can use gross margin to pierce the fog, comparing the profitability of different companies in the same industry. Companies with high gross margins are often better at allocating resources and seizing market opportunities. You may also find that profit margin analysis can reveal the professionalism of a company’s management team. Stable gross margins indicate good management, while significant fluctuations may suggest operational issues.
When selecting stocks, you should combine gross margin with other financial metrics for a comprehensive analysis to better assess a company’s quality and growth potential. By using gross margin to pierce the fog, you can more clearly identify high-quality companies with core competitiveness and market leadership.
When selecting stocks, you should first learn to compare gross margins across different industries. Each industry has different profit models and cost structures, leading to significant variations in gross margins. You cannot simply use one industry’s high gross margin to judge the quality of a company in another industry.
The table below shows the average gross margins of major industries in the U.S. stock market (in USD):
| Industry Name | Gross Margin |
|---|---|
| Advertising | 29.91% |
| Aerospace/Defense | 17.05% |
| Air Transport | 24.96% |
| Apparel | 54.28% |
| Auto & Truck | 11.11% |
| Auto Parts | 15.21% |
| Medical Products | 57.74% |
| Retail (Food + Grocery) | 24.71% |
| Transportation | 21.94% |
| Total Market | 36.28% |
You can see that the medical products and apparel industries have much higher gross margins than the auto industry. When analyzing, you should use the industry’s average gross margin as a benchmark to assess a target company’s profitability. If a company’s gross margin is above the industry average, it indicates advantages in cost control, product pricing, or market positioning.
You can also visually understand the distribution of gross margins across industries through the chart below:

In practice, you can compare a target company’s gross margin with the industry average. For example, if a company’s TTM gross margin is 71.72% while the industry average is 71.18%, the company has a slight edge in profitability. You can further compare operating margin and pre-tax profit margin to assess the company’s performance in operations and tax management.
Tip: When comparing industries, you should combine valuation metrics like the PEG ratio to avoid focusing solely on gross margin. A low PEG ratio often indicates an undervalued company, but PEG standards vary by company type and industry.
When analyzing gross margins, you should not only look at current data but also focus on historical trends. Changes in gross margin can reflect shifts in a company’s operational condition.
You can analyze historical gross margin trends using the following methods:
You can also compare a target company’s gross margin trends with those of other companies in the same industry to identify potential investment opportunities. Gross margin pierces the fog, helping you identify companies with sustained profitability and growth potential.
When selecting stocks, you cannot rely solely on gross margin. You need to combine multiple financial metrics for a comprehensive screening. Commonly used metrics include:
You can combine these metrics with gross margin to build your own multidimensional screening system. For example, you can prioritize companies with high gross margins, stable net profit margins, and sustained revenue growth. You can also use free cash flow to assess whether a company has the capacity for sustained expansion and risk resilience.
Suggestion: In practice, you should use tables or screening tools to compare a target company’s financial metrics with industry averages, quickly locking in high-quality and high-growth companies.
Through industry comparisons, historical trend analysis, and multidimensional screening, you can make more scientific stock selection decisions. Gross margin pierces the fog, helping you find companies with true core competitiveness in a complex market environment.

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When analyzing industry-leading companies, you can use gross margin to pierce the fog, quickly identifying those with true core competitiveness. Industry leaders typically have gross margins above the industry average, reflecting their advantages in cost control, pricing power, and market position. You can analyze industry leaders using gross margin in the following ways:
In practice, you can screen for companies with gross margins consistently above the industry average through horizontal comparisons. These companies often have stable customer bases, strong brand influence, and sustained innovation capabilities.
When searching for high-growth companies, gross margin analysis is equally critical. High-growth companies typically exhibit the following characteristics:
You can combine gross margin and revenue growth metrics to screen for companies with high-growth potential. The table below shows core data for some high-growth companies in the U.S. stock market:
| Company Name | Projected Sales CAGR | Gross Margin Improvement | Operating Margin Improvement |
|---|---|---|---|
| Eli Lilly (LLY) | 18.7% | Yes | Yes |
| Oracle (ORCL) | 17.6% | Yes | Yes |
| DoorDash (DASH) | 17.4% | Yes | Yes |
| Insulet (PODD) | 17% | Yes | Yes |
| Broadcom (AVGO) | 17% | Yes | Yes |
| Teradyne (TER) | 17% | Yes | Yes |
| Fair Isaac (FICO) | N/A | Yes | Yes |
| Advanced Micro Devices (AMD) | N/A | Yes | Yes |
| Uber (UBER) | N/A | Yes | Yes |
| Meta Platforms (META) | 12.6% | Yes | Yes |
| Micron Technology (MU) | 13.5% | Yes | Yes |
| Netflix (NFLX) | N/A | Yes | Yes |
You can visually understand these companies’ growth trends through the chart below:

In actual analysis, combining the gross margin piercing-the-fog method allows you to identify the investment value of industry leaders and high-growth companies earlier. This approach helps you make more scientific judgments in complex market environments.
When analyzing gross margins, you need to be cautious of inflated data risks. An unusually high gross margin may not indicate improved business conditions. Common causes include:
You can periodically analyze gross margins alongside other financial data to determine whether changes are reasonable. If you notice a sudden significant increase in gross margin, you should further verify the company’s accounting policies and cost calculation methods. Understanding the fundamental factors affecting profit margin fluctuations helps you identify potential financial instability.
When comparing gross margins, you must consider industry specifics. Different industries have distinct cost structures and profit models. The table below summarizes common industry factors and their impact on gross margins:
| Industry-Specific Factor | Impact Description |
|---|---|
| Pricing Strategy | Pricing directly affects gross profit; overly high prices may reduce demand, while overly low prices compress margins. |
| Unit Sales Dynamics | Companies with high fixed costs and low variable costs can leverage positive operating leverage to boost margins as sales increase. |
| Fixed vs. Variable Cost Mix | Companies with high fixed costs experience greater margin fluctuations with sales changes, while those with high variable costs may see margins decline as sales grow. |
| Operating Expenses | Sales, administrative, and R&D expenses significantly impact margins, especially when revenue fails to grow proportionally. |
You also need to adjust gross margin evaluation criteria based on industry characteristics. For example, the pharmaceutical industry may have lower gross margins than the Software-as-a-Service (SaaS) industry due to high R&D costs, but this is still reasonable. You can refer to industry averages provided by industry associations or accounting professionals as a starting point for analysis.
When making investment decisions, you cannot rely solely on gross margin data. Blindly chasing companies with high gross margins may lead to the following issues:
You should rationally analyze gross margins in combination with multidimensional metrics like net profit margin and revenue growth to form your own judgment criteria. Only then can you truly identify high-quality and high-growth potential companies.
When selecting stocks, gross margin can help you quickly assess a company’s profitability. Combining operating margin, net profit margin, and return on assets gives you a more comprehensive view of a company’s financial health.
Relying solely on gross margin can overlook other critical metrics, affecting investment judgments.
You can use gross margin to assess a company’s profitability after deducting direct costs from sales revenue. Net profit margin reflects the final profit after accounting for all expenses and taxes.
You’ll find differences in product positioning, brand influence, and cost control capabilities. Technological innovation and management efficiency also affect gross margin performance.
You cannot judge solely based on gross margin levels. High gross margins may result from high pricing or low costs, but you should also analyze revenue growth and market competitiveness.
You can review a company’s financial reports, focusing on accounting policies and cost calculation methods. Comparing historical data and industry averages helps identify anomalies.
You’ll see that software, medical products, and apparel industries typically have higher gross margins. These industries benefit from high product value-added and advantageous cost structures.
Gross Margin is your flashlight for piercing the market fog, helping you quickly isolate companies with superior pricing power and cost management—the hallmarks of quality and growth potential. But after diligently identifying these high-margin global leaders (e.g., in US and HK markets), the reality of high brokerage fees and slow cross-border funding can erode your hard-earned value.
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*This article is provided for general information purposes and does not constitute legal, tax or other professional advice from BiyaPay or its subsidiaries and its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
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