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# Is NewMarket Corporation’s (NYSE:NEU) 31% Better Than Average?

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. By way of learning-by-doing, we’ll look at ROE to gain a better understanding of NewMarket Corporation (NYSE:NEU).

NewMarket has a ROE of 31%, based on the last twelve months. One way to conceptualize this, is that for each \$1 of shareholders’ equity it has, the company made \$0.31 in profit.

### How Do I Calculate Return On Equity?

The formula for return on equity is:

Return on Equity = Net Profit ÷ Shareholders’ Equity

Or for NewMarket:

31% = 175.677 ÷ US\$564m (Based on the trailing twelve months to September 2018.)

It’s easy to understand the ‘net profit’ part of that equation, but ‘shareholders’ equity’ requires further explanation. It is the capital paid in by shareholders, plus any retained earnings. Shareholders’ equity can be calculated by subtracting the total liabilities of the company from the total assets of the company.

### 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 amount earned after tax over the last twelve months. A higher profit will lead to a higher ROE. So, as a general rule, a high ROE is a good thing. Clearly, then, one can use ROE to compare different companies.

### Does NewMarket Have A Good ROE?

One simple way to determine if a company has a good return on equity is to compare it to the average for its industry. The limitation of this approach is that some companies are quite different from others, even within the same industry classification. Pleasingly, NewMarket has a superior ROE than the average (17%) company in the Chemicals industry.

That is a good sign. In my book, a high ROE almost always warrants a closer look. For example you might check if insiders are buying shares.

### The Importance Of Debt To Return On Equity

Most companies need money — from somewhere — to grow their profits. That cash can come from issuing shares, retained earnings, or debt. In the case of the first and second options, the ROE will reflect this use of cash, for growth. In the latter case, the debt used for growth will improve returns, but won’t affect the total equity. That will make the ROE look better than if no debt was used.

### Combining NewMarket’s Debt And Its 31% Return On Equity

NewMarket does use a significant amount of debt to increase returns. It has a debt to equity ratio of 1.45. While the ROE is impressive, that metric has clearly benefited from the company’s use of debt. Debt increases risk and reduces options for the company in the future, so you generally want to see some good returns from using it.

### In Summary

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.

But when a business is high quality, the market often bids it up to a price that reflects this. Profit growth rates, versus the expectations reflected in the price of the stock, are a particularly important to consider. You can see how the company has grow in the past by looking at this FREE detailed graph of past earnings, revenue and cash flow.

But note: NewMarket may not be the best stock to buy. So take a peek at this free list of interesting companies with 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.