The most you can lose on any stock (assuming you don't use leverage) is 100% of your money. But on the bright side, you can make far more than 100% on a really good stock. For example, the ALS Limited (ASX:ALQ) share price has soared 105% in the last half decade. Most would be very happy with that. On top of that, the share price is up 15% in about a quarter. But this move may well have been assisted by the reasonably buoyant market (up 10% in 90 days).

So let's assess the underlying fundamentals over the last 5 years and see if they've moved in lock-step with shareholder returns.

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There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

During five years of share price growth, ALS achieved compound earnings per share (EPS) growth of 26% per year. The EPS growth is more impressive than the yearly share price gain of 15% over the same period. So it seems the market isn't so enthusiastic about the stock these days.

You can see how EPS has changed over time in the image below (click on the chart to see the exact values).

We like that insiders have been buying shares in the last twelve months. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. It might be well worthwhile taking a look at our free report on ALS' earnings, revenue and cash flow.

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. We note that for ALS the TSR over the last 5 years was 134%, which is better than the share price return mentioned above. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

It's nice to see that ALS shareholders have received a total shareholder return of 25% over the last year. And that does include the dividend. Since the one-year TSR is better than the five-year TSR (the latter coming in at 19% 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. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Consider risks, for instance. Every company has them, and we've spotted 1 warning sign for ALS you should know about.

ALS is not the only stock insiders are buying. So take a peek at this free list of small cap companies at attractive valuations which insiders have been buying.

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