AZZ Inc. (NYSE:AZZ) shareholders might be concerned after seeing the share price drop 15% in the last month. But the silver lining is the stock is up over five years. Unfortunately its return of 77% is below the market return of 97%.

Although AZZ has shed US$383m from its market cap this week, let's take a look at its longer term fundamental trends and see if they've driven returns.

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. 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).

AZZ's earnings per share are down 12% 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.

We doubt the modest 0.8% dividend yield is attracting many buyers to the stock. On the other hand, AZZ's revenue is growing nicely, at a compound rate of 15% over the last five years. In that case, the company may be sacrificing current earnings per share to drive growth.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

You can see how its balance sheet has strengthened (or weakened) over time in this free interactive graphic.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. In the case of AZZ, it has a TSR of 91% for the last 5 years. That exceeds its share price return that we previously mentioned. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

We're pleased to report that AZZ shareholders have received a total shareholder return of 45% over one year. That's including the dividend. That's better than the annualised return of 14% over half a decade, implying that the company is doing better recently. Given the share price momentum remains strong, it might be worth taking a closer look at the stock, lest you miss an opportunity. It's always interesting to track share price performance over the longer term. But to understand AZZ better, we need to consider many other factors. Even so, be aware that AZZ is showing 3 warning signs in our investment analysis , and 1 of those is significant...

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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.