With its stock down 12% over the past month, it is easy to disregard Proto Labs (NYSE:PRLB). We, however decided to study the company's financials to determine if they have got anything to do with the price decline. Long-term fundamentals are usually what drive market outcomes, so it's worth paying close attention. Specifically, we decided to study Proto Labs' ROE in this article.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. In short, ROE shows the profit each dollar generates with respect to its shareholder investments.

View our latest analysis for Proto Labs

How To 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:

3.6% = US$25m ÷ US$685m (Based on the trailing twelve months to June 2024).

The 'return' is the yearly profit. So, this means that for every $1 of its shareholder's investments, the company generates a profit of $0.04.

Why Is ROE Important For Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. Depending on how much of these profits the company reinvests or "retains", and how effectively it does so, we are then able to assess a company’s earnings growth potential. Generally speaking, other things being equal, firms with a high return on equity and profit retention, have a higher growth rate than firms that don’t share these attributes.

A Side By Side comparison of Proto Labs' Earnings Growth And 3.6% ROE

It is quite clear that Proto Labs' ROE is rather low. Not just that, even compared to the industry average of 15%, the company's ROE is entirely unremarkable. Therefore, it might not be wrong to say that the five year net income decline of 47% 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 11% 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. Doing so will help them establish if the stock's future looks promising or ominous. If you're wondering about Proto Labs''s valuation, check out this gauge of its price-to-earnings ratio, as compared to its industry.