Iron Mountain's (NYSE:IRM) 19% CAGR outpaced the company's earnings growth over the same three-year period

One simple way to benefit from the stock market is to buy an index fund. But if you choose individual stocks with prowess, you can make superior returns. Just take a look at Iron Mountain Incorporated (NYSE:IRM), which is up 38%, over three years, soundly beating the market return of 22% (not including dividends). On the other hand, the returns haven't been quite so good recently, with shareholders up just 7.5% , including dividends .

Since it's been a strong week for Iron Mountain shareholders, let's have a look at trend of the longer term fundamentals.

Check out our latest analysis for Iron Mountain

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 imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

During three years of share price growth, Iron Mountain achieved compound earnings per share growth of 0.8% per year. In comparison, the 11% per year gain in the share price outpaces the EPS growth. So it's fair to assume the market has a higher opinion of the business than it did three years ago. It is quite common to see investors become enamoured with a business, after a few years of solid progress.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

earnings-per-share-growth
earnings-per-share-growth

Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of Iron Mountain, it has a TSR of 69% for the last 3 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

We're pleased to report that Iron Mountain shareholders have received a total shareholder return of 7.5% over one year. Of course, that includes the dividend. However, that falls short of the 11% TSR per annum it has made for shareholders, each year, over five years. 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. Even so, be aware that Iron Mountain is showing 4 warning signs in our investment analysis , and 2 of those are potentially serious...

Of course Iron Mountain may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

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

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

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