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Do you often face decision paralysis when investing? With so many stocks to choose from, many people fall into the trap of blindly picking stocks, often ending up with companies that have unstable performance. Return on Equity (ROE) can help you quickly filter out businesses with true profitability. By analyzing ROE, you can determine whether a company has the ability to consistently create value. Scientific stock selection relies on data and logic, not following trends or gut feelings.

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When investing in stocks without a scientific approach, you’re likely to fall into the trap of blind stock picking. Many investors focus only on hot sectors or follow market rumors, often overlooking a company’s actual operational performance. You might impulsively buy a stock without analyzing its financial data or profitability. This exposes you to multiple risks. According to the latest investment research, random stock picking exposes you to two main types of risks:
If you ignore these risks and buy stocks based solely on feelings or trends, you may ultimately face significant losses.
Faced with hundreds or thousands of stocks, you might feel overwhelmed and unsure where to start. You may notice that many companies appear to have strong performance on the surface, but their actual profitability is unstable. You might ask yourself: Which stock should I pick? Why do some companies’ stock prices rise quickly but then fall just as fast? Blind stock picking makes it hard to identify companies with true long-term value. You need a scientific approach to stock selection to make informed decisions in a complex market environment. Only by developing a systematic analytical mindset can you effectively avoid investment pitfalls and improve your investment success rate.
When analyzing a company, ROE (Return on Equity) is a highly important financial metric. ROE helps you understand how effectively a company uses shareholders’ funds to generate profits.
You can calculate ROE using a simple formula.
| Formula | Description |
|---|---|
| ROE = Net Income / Shareholders’ Equity | This is the basic formula for ROE. Comparing a company’s ROE to the industry average can highlight its competitive advantage. |
You only need to find the company’s annual net income and shareholders’ equity data, then divide net income by shareholders’ equity to obtain the ROE value. The higher this value, the stronger the company’s ability to generate profits using shareholders’ funds.
When selecting stocks, ROE can help you quickly identify high-quality companies.
If you master the definition, calculation, and role of ROE, you can analyze company value more scientifically and improve your stock-picking ability.

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When selecting stocks, you should first focus on a company’s ROE value. Generally, an ROE above 15% is considered excellent, 10% to 15% is good, and below 10% requires caution. Consistently high ROE indicates that the company’s management can effectively use shareholders’ funds to generate profits. You can observe the company’s ROE changes over the past few years. If ROE is consistently rising, it suggests stable operations. If ROE shows a significant decline, it may indicate issues with profitability or operational efficiency.
A consistently high or rising ROE typically indicates effective management and robust business practices. A declining ROE may suggest potential issues within the company.
When comparing ROE across companies, you cannot rely solely on absolute values. ROE levels vary significantly across industries. The technology sector typically has the highest ROE due to low fixed assets, short lifecycles, and low overhead costs. The automotive industry has moderate ROE, as it requires significant fixed asset investments and longer asset return periods. The food industry has the lowest ROE due to intense competition and low profit margins.
| Industry | ROE Performance | Influencing Factors |
|---|---|---|
| Technology | Highest ROE | Low fixed assets and leverage, short lifecycles, low overhead costs |
| Automotive | Moderate ROE | High fixed asset investments, longer asset return periods |
| Food | Lowest ROE | Intense competition, low profits, minimal R&D investment |
When comparing companies within an industry, you can use the following methods:
When screening for high-quality companies, you shouldn’t rely solely on ROE. Free Cash Flow (FCF) is equally important. ROE measures a company’s ability to generate profits from shareholders’ equity, while free cash flow reflects the cash available for reinvestment, dividends, or debt repayment after capital expenditures.
When selecting stocks, you should combine multiple financial metrics for a comprehensive analysis. In addition to ROE and free cash flow, you can also consider Earnings Per Share (EPS), Price-to-Earnings (P/E) Ratio, Debt-to-Equity Ratio, Price-to-Book Ratio, Operating Margin, and Beta.
By combining these metrics, you can more comprehensively evaluate a company’s financial health and investment value. Scientific stock selection requires building a systematic analytical mindset and avoiding reliance on a single metric. Through multi-dimensional analysis, you can truly identify “golden” high-quality companies.
When analyzing the U.S. market, you can focus on companies that consistently maintain high ROE. For example, a U.S. tech company has maintained an ROE above 20% over the past five years. You can review its financial reports and find that its net income has grown steadily each year, with shareholders’ equity also increasing stably. The company’s management excels at using funds for R&D and market expansion, driving product innovation.
A high ROE typically indicates strong profitability and high management efficiency. You can use the following data to make judgments:
| Year | Net Income (USD) | Shareholders’ Equity (USD) | ROE |
|---|---|---|---|
| 2019 | 5,000,000 | 22,000,000 | 22.7% |
| 2020 | 6,200,000 | 25,000,000 | 24.8% |
| 2021 | 7,500,000 | 28,000,000 | 26.8% |
You can see that the company generates more profits with less shareholder capital each year. When selecting stocks, prioritizing such high-ROE companies can improve your investment success rate.
When screening stocks, you’ll also encounter companies with low ROE. For example, a U.S. traditional retail company has had an ROE below 8% for the past three years. Reviewing its financial reports, you find that its net income growth is slow, while shareholders’ equity continues to increase. The company is at a competitive disadvantage in the market, and management has failed to utilize funds effectively.
A low ROE reflects insufficient profitability and low capital utilization efficiency. You can refer to the following data:
| Year | Net Income (USD) | Shareholders’ Equity (USD) | ROE |
|---|---|---|---|
| 2019 | 1,200,000 | 16,000,000 | 7.5% |
| 2020 | 1,100,000 | 15,800,000 | 7.0% |
| 2021 | 1,000,000 | 15,500,000 | 6.5% |
When investing, if you find a company’s ROE is consistently below the industry average, you should proceed with caution. Low-ROE companies often struggle to create sustained value for shareholders. You can combine other financial metrics to further assess whether the company is worth investing in.
When using ROE to screen companies, you may encounter situations where numbers are artificially “beautified.” Many companies use financial tactics to make ROE appear high, even though their actual profitability is weak. You need to be cautious of the following common causes of inflated ROE:
To avoid blind stock picking, you shouldn’t focus solely on ROE figures; you must also analyze the company’s debt, cash reserves, and accounting policies.
Tip: Market analysts often use adjusted ROE to eliminate one-time events, tax effects, and non-operational factors. This provides a more accurate reflection of a company’s true profitability.
| Adjustment Type | Description |
|---|---|
| One-Time Events | Exclude non-recurring gains or losses |
| Tax Adjustments | Standardize tax rate impacts |
| Non-Operational Factors | Exclude items unrelated to core operations |
When selecting stocks, relying solely on ROE can lead you into statistical traps. While ROE reflects a company’s efficiency in using shareholders’ funds, it has clear limitations:
To avoid blind stock picking, you should combine other financial metrics to assess a company’s value comprehensively. Many investors mistakenly believe that higher ROE is always better, but ROE is also influenced by accounting policies, off-balance-sheet items, and financing decisions.
| Misconception Type | Description |
|---|---|
| Based on Accounting Earnings | ROE relies on GAAP net income, which is susceptible to accounting loopholes and manipulation |
| Ignoring Off-Balance-Sheet Items | ROE does not account for hidden assets and liabilities, leading to misunderstandings of capital usage |
| Influenced by Leverage | ROE is easily affected by financing decisions, potentially misleading profitability assessments |
When building a scientific stock selection system, you cannot rely solely on ROE. You must combine metrics like free cash flow and return on assets to truly identify “golden” companies and avoid the risks of blind stock picking.
When selecting stocks, ROE can help you quickly identify high-quality companies and steer clear of blind stock-picking risks. Combining ROE with ROA provides a more comprehensive assessment of a company’s capital utilization efficiency:
By continuously focusing on financial metrics and combining multiple methods, you can build a scientific stock selection system and improve the accuracy of your investment decisions.
You cannot judge solely based on ROE’s level. A high ROE may result from high company debt. You should also analyze cash flow and debt levels.
You use ROE to assess a company’s ability to generate profits from shareholders’ funds. You use ROA to evaluate how effectively a company uses all its assets. Combining both provides a more comprehensive analysis.
You cannot directly compare ROE across industries. ROE levels vary by industry. Comparing ROE within the same industry is more meaningful.
You need to be cautious. Companies can inflate ROE by increasing debt or adjusting accounting policies. You should combine other financial metrics for judgment.
You use ROE more effectively for long-term investment analysis. Companies with consistently high ROE are more likely to deliver long-term returns.
Return on Equity (ROE) is the ultimate metric for identifying companies that are mastering capital efficiency and generating “real money” from shareholder investment. Your analytical advantage—finding that high-quality, undervalued stock—must be paired with a tactical advantage: low-cost, instant access to global markets. High commissions and slow cross-border funding can significantly dilute the returns generated by even the most meticulously selected high-ROE portfolio.
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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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