Buying shares in the best businesses can build meaningful wealth for you and your family. While the best companies are hard to find, but they can generate massive returns over long periods. Just think about the savvy investors who held Saia, Inc. (NASDAQ:SAIA) shares for the last five years, while they gained 329%. If that doesn't get you thinking about long term investing, we don't know what will. Better yet, the share price has risen 7.1% in the last week.

The past week has proven to be lucrative for Saia investors, so let's see if fundamentals drove the company's five-year performance.

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' 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.

Over half a decade, Saia managed to grow its earnings per share at 27% a year. This EPS growth is slower than the share price growth of 34% per year, over the same period. This suggests that market participants hold the company in higher regard, these days. And that's hardly shocking given the track record of growth.

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

It's good to see that there was some significant insider buying in the last three months. That's a positive. On the other hand, we think the revenue and earnings trends are much more meaningful measures of the business. It might be well worthwhile taking a look at our free report on Saia's earnings, revenue and cash flow.

A Different Perspective

Investors in Saia had a tough year, with a total loss of 5.9%, against a market gain of about 21%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. On the bright side, long term shareholders have made money, with a gain of 34% per year over half a decade. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. 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. For instance, we've identified 1 warning sign for Saia that you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: most of them are flying under the radar).

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.