Many investors are still learning about the various metrics that can be useful when analysing a stock. This article is for those who would like to learn about Return On Equity (ROE). To keep the lesson grounded in practicality, we'll use ROE to better understand CBS Corporation (NYSE:CBS).
CBS has a ROE of 65%, 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 $0.65.
See our latest analysis for CBS
How Do You Calculate Return On Equity?
The formula for return on equity is:
Return on Equity = Net Profit ÷ Shareholders' Equity
Or for CBS:
65% = US$3.1b ÷ US$4.8b (Based on the trailing twelve months to June 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 Return On Equity Mean?
ROE looks at the amount a company earns relative to the money it has kept within the business. The 'return' is the profit over the last twelve months. A higher profit will lead to a higher ROE. So, all else equal, investors should like a high ROE. Clearly, then, one can use ROE to compare different companies.
Does CBS 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. Pleasingly, CBS has a superior ROE than the average (13%) company in the Media industry.
That's clearly a positive. I usually take a closer look when a company has a better ROE than industry peers. For example, I often check if insiders have been buying shares .
Why You Should Consider Debt When Looking At ROE
Most companies need money -- from somewhere -- 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. Thus the use of debt can improve ROE, albeit along with extra risk in the case of stormy weather, metaphorically speaking.
CBS's Debt And Its 65% ROE
CBS clearly uses a significant amount of debt to boost returns, as it has a debt to equity ratio of 1.96. There's no doubt its ROE is impressive, but the company appears to use its debt to boost that metric. Investors should think carefully about how a company might perform if it was unable to borrow so easily, because credit markets do change over time.