For many, the main point of investing in the stock market is to achieve spectacular returns. And highest quality companies can see their share prices grow by huge amounts. Don't believe it? Then look at the CECO Environmental Corp. (NASDAQ:CECO) share price. It's 377% higher than it was five years ago. If that doesn't get you thinking about long term investing, we don't know what will. Also pleasing for shareholders was the 72% gain in the last three months.

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

This technology could replace computers: discover the 20 stocks are working to make quantum computing a reality.

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. 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.

Over half a decade, CECO Environmental managed to grow its earnings per share at 20% a year. This EPS growth is slower than the share price growth of 37% per year, over the same period. So it's fair to assume the market has a higher opinion of the business than it did five years ago. That's not necessarily surprising considering the five-year track record of earnings growth.

The image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. Dive deeper into the earnings by checking this interactive graph of CECO Environmental's earnings, revenue and cash flow.

A Different Perspective

CECO Environmental shareholders gained a total return of 6.3% during the year. Unfortunately this falls short of the market return. If we look back over five years, the returns are even better, coming in at 37% per year for five years. It may well be that this is a business worth popping on the watching, given the continuing positive reception, over time, from the market. 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. Consider for instance, the ever-present spectre of investment risk. We've identified 3 warning signs with CECO Environmental (at least 2 which shouldn't be ignored) , and understanding them should be part of your investment process.

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of undervalued small cap companies that insiders are buying.

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