The five-year decline in earnings for Corning NYSE:GLW) isn't encouraging, but shareholders are still up 169% over that period

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But on a lighter note, a good company can see its share price rise well over 100%. For instance, the price of Corning Incorporated (NYSE:GLW) stock is up an impressive 132% over the last five years. Then again, the 8.7% share price decline hasn't been so fun for shareholders. We note that the broader market is down 6.4% in the last month, and this may have impacted Corning's share price.

Although Corning has shed US$3.5b from its market cap this week, let's take a look at its longer term fundamental trends and see if they've driven returns.

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

During five years of share price growth, Corning actually saw its EPS drop 12% per year.

This means it's unlikely the market is judging the company based on earnings growth. 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.

The revenue growth of 2.7% per year hardly seems impressive. So why is the share price up? It's not immediately obvious to us, but a closer look at the company's progress over time might yield answers.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

Corning is a well known stock, with plenty of analyst coverage, suggesting some visibility into future growth. So it makes a lot of sense to check out what analysts think Corning will earn in the future (free analyst consensus estimates)

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. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. We note that for Corning the TSR over the last 5 years was 169%, which is better than the share price return mentioned above. This is largely a result of its dividend payments!

A Different Perspective

It's nice to see that Corning shareholders have received a total shareholder return of 44% over the last year. And that does include the dividend. That gain is better than the annual TSR over five years, which is 22%. Therefore it seems like sentiment around the company has been positive lately. In the best case scenario, this may hint at some real business momentum, implying that now could be a great time to delve deeper. 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. Take risks, for example - Corning has 4 warning signs (and 1 which makes us a bit uncomfortable) we think you should know about.

We will like Corning better if we see some big insider buys. While we wait, check out this free list of undervalued stocks (mostly small caps) with considerable, recent, insider buying.

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.