Penumbra (NYSE:PEN) has had a great run on the share market with its stock up by a significant 16% over the last three months. Given that stock prices are usually aligned with a company's financial performance in the long-term, we decided to study its financial indicators more closely to see if they had a hand to play in the recent price move. Particularly, we will be paying attention to Penumbra's ROE today.

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.

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How Do You Calculate Return On Equity?

Return on equity 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 Penumbra is:

1.2% = US$14m ÷ US$1.2b (Based on the trailing twelve months to December 2024).

The 'return' refers to a company's earnings over the last year. That means that for every $1 worth of shareholders' equity, the company generated $0.01 in profit.

Check out our latest analysis for Penumbra

Why Is ROE Important For Earnings Growth?

We have already established that ROE serves as an efficient profit-generating gauge for a company's future earnings. 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 everything else remains unchanged, the higher the ROE and profit retention, the higher the growth rate of a company compared to companies that don't necessarily bear these characteristics.

Penumbra's Earnings Growth And 1.2% ROE

It is quite clear that Penumbra's ROE is rather low. Even compared to the average industry ROE of 12%, the company's ROE is quite dismal. However, we we're pleasantly surprised to see that Penumbra grew its net income at a significant rate of 23% in the last five years. We reckon that there could be other factors at play here. Such as - high earnings retention or an efficient management in place.

As a next step, we compared Penumbra's net income growth with the industry, and pleasingly, we found that the growth seen by the company is higher than the average industry growth of 13%.

Earnings growth is an important metric to consider when valuing a stock. The investor should try to establish if the expected growth or decline in earnings, whichever the case may be, is priced in. Doing so will help them establish if the stock's future looks promising or ominous. Is Penumbra fairly valued compared to other companies? These 3 valuation measures might help you decide.

Is Penumbra Efficiently Re-investing Its Profits?

Given that Penumbra doesn't pay any regular dividends to its shareholders, we infer that the company has been reinvesting all of its profits to grow its business.

Summary

In total, it does look like Penumbra has some positive aspects to its business. Even in spite of the low rate of return, the company has posted impressive earnings growth as a result of reinvesting heavily into its business. With that said, the latest industry analyst forecasts reveal that the company's earnings are expected to accelerate. 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.