Mercury NZ's (NZSE:MCY) investors will be pleased with their splendid 115% return over the last five years

Generally speaking the aim of active stock picking is to find companies that provide returns that are superior to the market average. And the truth is, you can make significant gains if you buy good quality businesses at the right price. For example, long term Mercury NZ Limited (NZSE:MCY) shareholders have enjoyed a 78% share price rise over the last half decade, well in excess of the market return of around 2.4% (not including dividends). However, more recent returns haven't been as impressive as that, with the stock returning just 19% in the last year , including dividends .

Let's take a look at the underlying fundamentals over the longer term, and see if they've been consistent with shareholders returns.

View our latest analysis for Mercury NZ

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Mercury NZ's earnings per share are down 15% per year, despite strong share price performance over five years.

Essentially, it doesn't seem likely that investors are focused on EPS. Because earnings per share don't seem to match up with the share price, we'll take a look at other metrics instead.

On the other hand, Mercury NZ's revenue is growing nicely, at a compound rate of 7.3% over the last five years. It's quite possible that management are prioritizing revenue growth over EPS growth at the moment.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

Take a more thorough look at Mercury NZ's financial health with this free report on its balance sheet.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. The TSR incorporates the value of any spin-offs or discounted capital raisings, along with any dividends, based on the assumption that the dividends are reinvested. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. As it happens, Mercury NZ's TSR for the last 5 years was 115%, which exceeds the share price return mentioned earlier. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

It's nice to see that Mercury NZ shareholders have received a total shareholder return of 19% over the last year. Of course, that includes the dividend. Since the one-year TSR is better than the five-year TSR (the latter coming in at 17% per year), it would seem that the stock's performance has improved in recent times. Someone with an optimistic perspective could view the recent improvement in TSR as indicating that the business itself is getting better with time. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. For instance, we've identified 3 warning signs for Mercury NZ (1 is potentially serious) that you should be aware of.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on New Zealander exchanges.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.