Thanks in no small measure to Vanguard founder Jack Bogle, it's easy buy a low cost index fund, which should provide the average market return. But you can make superior returns by picking better-than average stocks. For example, the Pinnacle West Capital Corporation (NYSE:PNW) share price is up 21% in the last three years, slightly above the market return. More recently the stock has gained 19% in a year, which isn't too bad.

So let's investigate and see if the longer term performance of the company has been in line with the underlying business' progress.

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

During three years of share price growth, Pinnacle West Capital achieved compound earnings per share growth of 2.2% per year. In comparison, the 7% per year gain in the share price outpaces the EPS growth. This suggests that, as the business progressed over the last few years, it gained the confidence of market participants. It is quite common to see investors become enamoured with a business, after a few years of solid progress.

You can see below how EPS has changed over time (discover the exact values by clicking on the image).

We know that Pinnacle West Capital has improved its bottom line lately, but is it going to grow revenue? Check if analysts think Pinnacle West Capital will grow revenue in the future.

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. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. We note that for Pinnacle West Capital the TSR over the last 3 years was 39%, which is better than the share price return mentioned above. This is largely a result of its dividend payments!

A Different Perspective

Pinnacle West Capital shareholders have received returns of 24% over twelve months (even including dividends), which isn't far from the general market return. That gain looks pretty satisfying, and it is even better than the five-year TSR of 4% per year. It is possible that management foresight will bring growth well into the future, even if the share price slows down. 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. Take risks, for example - Pinnacle West Capital has 3 warning signs (and 1 which is significant) we think you should know about.

We will like Pinnacle West Capital better if we see some big insider buys. While we wait, check out this free list of undervalued stocks (mostly small caps) with considerable, recent, insider buying.

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