Many investors are still learning about the various metrics that can be useful when analysing a stock. This article is for those who would like to learn about Return On Equity (ROE). We'll use ROE to examine Anhui Zhonghuan Environmental Protection Technology Co.,Ltd (SZSE:300692), by way of a worked example.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors' money. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

How Is ROE Calculated?

The formula for ROE is:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Anhui Zhonghuan Environmental Protection TechnologyLtd is:

3.4% = CN¥84m ÷ CN¥2.5b (Based on the trailing twelve months to September 2024).

The 'return' is the yearly profit. One way to conceptualize this is that for each CN¥1 of shareholders' capital it has, the company made CN¥0.03 in profit.

Does Anhui Zhonghuan Environmental Protection TechnologyLtd Have A Good ROE?

One simple way to determine if a company has a good return on equity is to compare it to the average for its industry. Importantly, this is far from a perfect measure, because companies differ significantly within the same industry classification. As is clear from the image below, Anhui Zhonghuan Environmental Protection TechnologyLtd has a lower ROE than the average (5.1%) in the Commercial Services industry.

That certainly isn't ideal. That being said, a low ROE is not always a bad thing, especially if the company has low leverage as this still leaves room for improvement if the company were to take on more debt. A company with high debt levels and low ROE is a combination we like to avoid given the risk involved. To know the 4 risks we have identified for Anhui Zhonghuan Environmental Protection TechnologyLtd visit our risks dashboard for free.

The Importance Of Debt To Return On Equity

Virtually all companies need money to invest in the business, to grow profits. The cash for investment can come from prior year profits (retained earnings), issuing new shares, or borrowing. In the first two cases, the ROE will capture this use of capital to grow. In the latter case, the debt used for growth will improve returns, but won't affect the total equity. That will make the ROE look better than if no debt was used.

Anhui Zhonghuan Environmental Protection TechnologyLtd's Debt And Its 3.4% ROE

Anhui Zhonghuan Environmental Protection TechnologyLtd clearly uses a high amount of debt to boost returns, as it has a debt to equity ratio of 1.33. The combination of a rather low ROE and significant use of debt is not particularly appealing. Investors should think carefully about how a company might perform if it was unable to borrow so easily, because credit markets do change over time.

Conclusion

Return on equity is one way we can compare its business quality of different companies. A company that can achieve a high return on equity without debt could be considered a high quality business. If two companies have around the same level of debt to equity, and one has a higher ROE, I'd generally prefer the one with higher ROE.

Having said that, while ROE is a useful indicator of business quality, you'll have to look at a whole range of factors to determine the right price to buy a stock. The rate at which profits are likely to grow, relative to the expectations of profit growth reflected in the current price, must be considered, too. So I think it may be worth checking this free this detailed graph of past earnings, revenue and cash flow.

Of course Anhui Zhonghuan Environmental Protection TechnologyLtd may not be the best stock to buy. So you may wish to see this free collection of other companies that have high ROE and low debt.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.