The main point of investing for the long term is to make money. But more than that, you probably want to see it rise more than the market average. But Ciena Corporation (NYSE:CIEN) has fallen short of that second goal, with a share price rise of 78% over five years, which is below the market return. However, more recent buyers should be happy with the increase of 63% over the last year.

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

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. 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).

During five years of share price growth, Ciena actually saw its EPS drop 9.2% per year.

Essentially, it doesn't seem likely that investors are focused on EPS. Since the change in EPS doesn't seem to correlate with the change in share price, it's worth taking a look at other metrics.

On the other hand, Ciena's revenue is growing nicely, at a compound rate of 4.2% over the last five years. In that case, the company may be sacrificing current earnings per share to drive growth.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

Ciena is well known by investors, and plenty of clever analysts have tried to predict the future profit levels. If you are thinking of buying or selling Ciena stock, you should check out this free report showing analyst consensus estimates for future profits.

A Different Perspective

It's nice to see that Ciena shareholders have received a total shareholder return of 63% over the last year. That's better than the annualised return of 12% over half a decade, implying that the company is doing better recently. 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 for instance, the ever-present spectre of investment risk. We've identified 2 warning signs with Ciena , and understanding them should be part of your investment process.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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.