Proto Labs (NYSE:PRLB) has had a great run on the share market with its stock up by a significant 23% over the last three months. However, we wonder if the company's inconsistent financials would have any adverse impact on the current share price momentum. Particularly, we will be paying attention to Proto Labs' ROE today.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. In other words, it is a profitability ratio which measures the rate of return on the capital provided by the company's shareholders.

Check out our latest analysis for Proto Labs

How Do You Calculate Return On Equity?

ROE can be calculated by using the formula:

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

So, based on the above formula, the ROE for Proto Labs is:

3.5% = US$24m ÷ US$680m (Based on the trailing twelve months to September 2024).

The 'return' is the income the business earned over the last year. Another way to think of that is that for every $1 worth of equity, the company was able to earn $0.04 in profit.

Why Is ROE Important For Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. We now need to evaluate how much profit the company reinvests or "retains" for future growth which then gives us an idea about the growth potential of the company. Assuming all else is equal, companies that have both a higher return on equity and higher profit retention are usually the ones that have a higher growth rate when compared to companies that don't have the same features.

Proto Labs' Earnings Growth And 3.5% ROE

As you can see, Proto Labs' ROE looks pretty weak. Even compared to the average industry ROE of 15%, the company's ROE is quite dismal. Therefore, it might not be wrong to say that the five year net income decline of 42% seen by Proto Labs was possibly a result of it having a lower ROE. We believe that there also might be other aspects that are negatively influencing the company's earnings prospects. For instance, the company has a very high payout ratio, or is faced with competitive pressures.

That being said, we compared Proto Labs' performance with the industry and were concerned when we found that while the company has shrunk its earnings, the industry has grown its earnings at a rate of 16% in the same 5-year period.

Earnings growth is an important metric to consider when valuing a stock. What investors need to determine next is if the expected earnings growth, or the lack of it, is already built into the share price. By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. What is PRLB worth today? The intrinsic value infographic in our free research report helps visualize whether PRLB is currently mispriced by the market.

Is Proto Labs Using Its Retained Earnings Effectively?

Proto Labs doesn't pay any regular dividends, meaning that potentially all of its profits are being reinvested in the business, which doesn't explain why the company's earnings have shrunk if it is retaining all of its profits. It looks like there might be some other reasons to explain the lack in that respect. For example, the business could be in decline.

Conclusion

On the whole, we feel that the performance shown by Proto Labs can be open to many interpretations. While the company does have a high rate of profit retention, its low rate of return is probably hampering its earnings growth. That being so, the latest industry analyst forecasts show that analysts are forecasting a slight improvement in the company's future earnings growth. This could offer some relief to the company's existing shareholders. To know more about the latest analysts predictions for the company, check out this visualization of analyst forecasts for the company.

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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.