Plexus (NASDAQ:PLXS) has had a great run on the share market with its stock up by a significant 26% over the last three months. However, we decided to pay attention to the company's fundamentals which don't appear to give a clear sign about the company's financial health. Particularly, we will be paying attention to Plexus' ROE today.

ROE or return on equity is a useful tool to assess how effectively a company can generate returns on the investment it received from its shareholders. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

How Do You Calculate Return On Equity?

The formula for return on equity is:

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

So, based on the above formula, the ROE for Plexus is:

8.4% = US$112m ÷ US$1.3b (Based on the trailing twelve months to September 2024).

The 'return' is the amount earned after tax over the last twelve months. So, this means that for every $1 of its shareholder's investments, the company generates a profit of $0.08.

Why Is ROE Important For Earnings Growth?

Thus far, we have learned that ROE measures how efficiently a company is generating its profits. 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.

A Side By Side comparison of Plexus' Earnings Growth And 8.4% ROE

On the face of it, Plexus' ROE is not much to talk about. Yet, a closer study shows that the company's ROE is similar to the industry average of 10%. Still, Plexus has seen a flat net income growth over the past five years. Bear in mind, the company's ROE is not very high. Hence, this provides some context to the flat earnings growth seen by the company.

We then compared Plexus' net income growth with the industry and found that the company's growth figure is lower than the average industry growth rate of 14% in the same 5-year period, which is a bit concerning.

Earnings growth is a huge factor in stock valuation. It's important for an investor to know whether the market has priced in the company's expected earnings growth (or decline). By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. Is PLXS fairly valued? This infographic on the company's intrinsic value has everything you need to know.

Is Plexus Making Efficient Use Of Its Profits?

Plexus doesn't pay any regular dividends, meaning that the company is keeping all of its profits, which makes us wonder why it is retaining its earnings if it can't use them to grow its business. So there could be some other explanations in that regard. For instance, the company's business may be deteriorating.

Conclusion

In total, we're a bit ambivalent about Plexus' performance. Even though it appears to be retaining most of its profits, given the low ROE, investors may not be benefitting from all that reinvestment after all. The low earnings growth suggests our theory correct. Having said that, looking at the current analyst estimates, we found that the company's earnings are expected to gain momentum. Are these analysts expectations based on the broad expectations for the industry, or on the company's fundamentals? Click here to be taken to our analyst's forecasts page 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.