Power Integrations (NASDAQ:POWI) has had a rough month with its share price down 2.8%. It is possible that the markets have ignored the company's differing financials and decided to lean-in to the negative sentiment. Long-term fundamentals are usually what drive market outcomes, so it's worth paying close attention. In this article, we decided to focus on Power Integrations' ROE.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors' money. Put another way, it reveals the company's success at turning shareholder investments into profits.

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 Power Integrations is:

7.2% = US$53m ÷ US$738m (Based on the trailing twelve months to March 2024).

The 'return' is the yearly profit. One way to conceptualize this is that for each $1 of shareholders' capital it has, the company made $0.07 in profit.

What Has ROE Got To Do With Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. Based on how much of its profits the company chooses to reinvest or "retain", we are then able to evaluate a company's future ability to generate profits. 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.

Power Integrations' Earnings Growth And 7.2% ROE

On the face of it, Power Integrations' ROE is not much to talk about. A quick further study shows that the company's ROE doesn't compare favorably to the industry average of 15% either. Given the circumstances, the significant decline in net income by 3.7% seen by Power Integrations over the last five years is not surprising. We believe that there also might be other aspects that are negatively influencing the company's earnings prospects. For example, it is possible that the business has allocated capital poorly or that the company has a very high payout ratio.

However, when we compared Power Integrations' growth with the industry we found that while the company's earnings have been shrinking, the industry has seen an earnings growth of 31% in the same period. This is quite worrisome.

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. It's important for an investor to know whether the market has priced in the company's expected earnings growth (or decline). Doing so will help them establish if the stock's future looks promising or ominous. One good indicator of expected earnings growth is the P/E ratio which determines the price the market is willing to pay for a stock based on its earnings prospects. So, you may want to check if Power Integrations is trading on a high P/E or a low P/E, relative to its industry.

Is Power Integrations Using Its Retained Earnings Effectively?

When we piece together Power Integrations' low three-year median payout ratio of 24% (where it is retaining 76% of its profits), calculated for the last three-year period, we are puzzled by the lack of growth. This typically shouldn't be the case when a company is retaining most of its earnings. So there might be other factors at play here which could potentially be hampering growth. For instance, the business has faced some headwinds.

In addition, Power Integrations has been paying dividends over a period of at least ten years suggesting that keeping up dividend payments is way more important to the management even if it comes at the cost of business growth. Upon studying the latest analysts' consensus data, we found that the company's future payout ratio is expected to rise to 36% over the next three years.

Summary

Overall, we have mixed feelings about Power Integrations. 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. With that said, we studied the latest analyst forecasts and found that while the company has shrunk its earnings in the past, analysts expect its earnings to grow in the future. To know more about the company's future earnings growth forecasts take a look at this free report on analyst forecasts for the company to find out more.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com