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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. To keep the lesson grounded in practicality, we'll use ROE to better understand Spark New Zealand Limited (NZSE:SPK).
Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors’ money. Put another way, it reveals the company's success at turning shareholder investments into profits.
Check out our latest analysis for Spark New Zealand
How To Calculate Return On Equity?
The formula for return on equity is:
Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity
So, based on the above formula, the ROE for Spark New Zealand is:
28% = NZ$416m ÷ NZ$1.5b (Based on the trailing twelve months to December 2021).
The 'return' refers to a company's earnings over the last year. One way to conceptualize this is that for each NZ$1 of shareholders' capital it has, the company made NZ$0.28 in profit.
Does Spark New Zealand 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. However, this method is only useful as a rough check, because companies do differ quite a bit within the same industry classification. As you can see in the graphic below, Spark New Zealand has a higher ROE than the average (6.0%) in the Telecom industry.
That's what we like to see. With that said, a high ROE doesn't always indicate high profitability. Especially when a firm uses high levels of debt to finance its debt which may boost its ROE but the high leverage puts the company at risk. To know the 3 risks we have identified for Spark New Zealand visit our risks dashboard for free.
The Importance Of Debt To Return On Equity
Most companies need money -- from somewhere -- to grow their profits. That cash can come from retained earnings, issuing new shares (equity), or debt. In the first two cases, the ROE will capture this use of capital to grow. In the latter case, the debt required for growth will boost returns, but will not impact the shareholders' equity. Thus the use of debt can improve ROE, albeit along with extra risk in the case of stormy weather, metaphorically speaking.
Spark New Zealand's Debt And Its 28% ROE
It's worth noting the high use of debt by Spark New Zealand, leading to its debt to equity ratio of 1.03. There's no doubt the ROE is impressive, but it's worth keeping in mind that the metric could have been lower if the company were to reduce its 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.