# Should Digi International Inc. (NASDAQ:DGII) Focus On Improving This Fundamental Metric?

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One of the best investments we can make is in our own knowledge and skill set. With that in mind, this article will work through how we can use Return On Equity (ROE) to better understand a business. We’ll use ROE to examine Digi International Inc. (NASDAQ:DGII), by way of a worked example.

Digi International has a ROE of 3.5%, based on the last twelve months. That means that for every \$1 worth of shareholders’ equity, it generated \$0.035 in profit.

### How Do You Calculate Return On Equity?

The formula for ROE is:

Return on Equity = Net Profit ÷ Shareholders’ Equity

Or for Digi International:

3.5% = US\$12m ÷ US\$341m (Based on the trailing twelve months to March 2019.)

It’s easy to understand the ‘net profit’ part of that equation, but ‘shareholders’ equity’ requires further explanation. It is all the money paid into the company from shareholders, plus any earnings retained. You can calculate shareholders’ equity by subtracting the company’s total liabilities from its total assets.

### What Does ROE Signify?

ROE measures a company’s profitability against the profit it retains, and any outside investments. The ‘return’ is the profit over the last twelve months. That means that the higher the ROE, the more profitable the company is. So, all else equal, investors should like a high ROE. Clearly, then, one can use ROE to compare different companies.

### Does Digi International Have A Good ROE?

Arguably the easiest way to assess company’s ROE is to compare it with the average in its industry. Importantly, this is far from a perfect measure, because companies differ significantly within the same industry classification. If you look at the image below, you can see Digi International has a lower ROE than the average (8.1%) in the Communications industry classification.

That certainly isn’t ideal. We’d prefer see an ROE above the industry average, but it might not matter if the company is undervalued. Nonetheless, it could be useful to double-check if insiders have sold shares recently.

### How Does Debt Impact ROE?

Companies usually need to invest money to grow their profits. The cash for investment can come from prior year profits (retained earnings), issuing new shares, or borrowing. In the first two cases, the ROE will capture this use of capital to grow. In the latter case, the debt used for growth will improve returns, but won’t affect the total equity. In this manner the use of debt will boost ROE, even though the core economics of the business stay the same.

### Combining Digi International’s Debt And Its 3.5% Return On Equity

Shareholders will be pleased to learn that Digi International has not one iota of net debt! It’s hard to argue its ROE is much good, but the fact that no debt was used is some comfort. After all, with cash on the balance sheet, a company has a lot more optionality in good times and bad.

### The Key Takeaway

Return on equity is useful for comparing the quality of different businesses. A company that can achieve a high return on equity without debt could be considered a high quality business. All else being equal, a higher ROE is better.

Having said that, while ROE is a useful indicator of business quality, you’ll have to look at a whole range of factors to determine the right price to buy a stock. The rate at which profits are likely to grow, relative to the expectations of profit growth reflected in the current price, must be considered, too. So you might want to take a peek at this data-rich interactive graph of forecasts for the company.

If you would prefer check out another company — one with potentially superior financials — then do not miss this free list of interesting companies, that have HIGH return on equity and low debt.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.