While Atkore Inc. (NYSE:ATKR) shareholders are probably generally happy, the stock hasn't had particularly good run recently, with the share price falling 14% in the last quarter. But in stark contrast, the returns over the last half decade have impressed. It's fair to say most would be happy with 101% the gain in that time. Generally speaking the long term returns will give you a better idea of business quality than short periods can. Of course, that doesn't necessarily mean it's cheap now. Unfortunately not all shareholders will have held it for the long term, so spare a thought for those caught in the 36% decline over the last twelve months.

Since the long term performance has been good but there's been a recent pullback of 9.0%, let's check if the fundamentals match the share price.

See our latest analysis for Atkore

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).

Over half a decade, Atkore managed to grow its earnings per share at 41% a 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. The reasonably low P/E ratio of 5.66 also suggests market apprehension.

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

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

A Different Perspective

Investors in Atkore had a tough year, with a total loss of 35% (including dividends), against a market gain of about 32%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Longer term investors wouldn't be so upset, since they would have made 15%, each year, over five years. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. 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. To that end, you should be aware of the 1 warning sign we've spotted with Atkore .

If you are like me, then you will not want to miss this free list of undervalued small caps 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.