A Closer Look At Luna Innovations Incorporated’s (NASDAQ:LUNA) Uninspiring ROE

While some investors are already well versed in financial metrics (hat tip), this article is for those who would like to learn about Return On Equity (ROE) and why it is important. By way of learning-by-doing, we’ll look at ROE to gain a better understanding of Luna Innovations Incorporated (NASDAQ:LUNA).

Luna Innovations has a ROE of 4.2%, based on the last twelve months. Another way to think of that is that for every $1 worth of equity in the company, it was able to earn $0.042.

Check out our latest analysis for Luna Innovations

How Do I Calculate Return On Equity?

The formula for return on equity is:

Return on Equity = Net Profit ÷ Shareholders’ Equity

Or for Luna Innovations:

4.2% = 2.336095 ÷ US$61m (Based on the trailing twelve months to September 2018.)

Most know that net profit is the total earnings after all expenses, but the concept of shareholders’ equity is a little more complicated. It is all earnings retained by the company, plus any capital paid in by shareholders. The easiest way to calculate shareholders’ equity is to subtract the company’s total liabilities from the total assets.

What Does Return On Equity Mean?

Return on Equity measures a company’s profitability against the profit it has kept for the business (plus any capital injections). The ‘return’ is the profit over the last twelve months. The higher the ROE, the more profit the company is making. So, all else being equal, a high ROE is better than a low one. That means it can be interesting to compare the ROE of different companies.

Does Luna Innovations 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. As shown in the graphic below, Luna Innovations has a lower ROE than the average (9.5%) in the Electronic industry classification.

NasdaqCM:LUNA Last Perf December 14th 18
NasdaqCM:LUNA Last Perf December 14th 18

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. That cash can come from retained earnings, issuing new shares (equity), or debt. In the first and second cases, the ROE will reflect this use of cash for investment in the business. In the latter case, the use of debt will improve the returns, but will not change the equity. Thus the use of debt can improve ROE, albeit along with extra risk in the case of stormy weather, metaphorically speaking.

Combining Luna Innovations’s Debt And Its 4.2% Return On Equity

Luna Innovations has a debt to equity ratio of just 0.02, which is very low. Its ROE is rather low, and it does use some debt, albeit not much. That’s not great to see. Judicious use of debt to improve returns can certainly be a good thing, although it does elevate risk slightly and reduce future optionality.

In Summary

Return on equity is one way we can compare the business quality of different companies. A company that can achieve a high return on equity without debt could be considered a high quality business. If two companies have around the same level of debt to equity, and one has a higher ROE, I’d generally prefer the one with higher ROE.

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. It is important to consider other factors, such as future profit growth — and how much investment is required going forward. So I think it may be worth checking this free report on analyst forecasts for the company.

Of course Luna Innovations may not be the best stock to buy. So you may wish to see this free collection of other companies that have high ROE and low debt.

To help readers see past the short term volatility of the financial market, we aim to bring you a long-term focused research analysis purely driven by fundamental data. Note that our analysis does not factor in the latest price-sensitive company announcements.

The author is an independent contributor and at the time of publication had no position in the stocks mentioned. For errors that warrant correction please contact the editor at editorial-team@simplywallst.com.