As Pan Ocean (KRX:028670) grows 4.4% this past week, investors may now be noticing the company's three-year earnings growth

As an investor its worth striving to ensure your overall portfolio beats the market average. But in any portfolio, there are likely to be some stocks that fall short of that benchmark. We regret to report that long term Pan Ocean Co., Ltd. (KRX:028670) shareholders have had that experience, with the share price dropping 45% in three years, versus a market decline of about 1.8%.

Although the past week has been more reassuring for shareholders, they're still in the red over the last three years, so let's see if the underlying business has been responsible for the decline.

Check out our latest analysis for Pan Ocean

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 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.

During the unfortunate three years of share price decline, Pan Ocean actually saw its earnings per share (EPS) improve by 0.7% per year. This is quite a puzzle, and suggests there might be something temporarily buoying the share price. Alternatively, growth expectations may have been unreasonable in the past.

After considering the numbers, we'd posit that the the market had higher expectations of EPS growth, three years back. But it's possible a look at other metrics will be enlightening.

Arguably the revenue decline of 4.5% per year has people thinking Pan Ocean is shrinking. After all, if revenue keeps shrinking, it may be difficult to find earnings growth in the future.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

Take a more thorough look at Pan Ocean's financial health with this free report on its balance sheet.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). 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. In the case of Pan Ocean, it has a TSR of -40% for the last 3 years. That exceeds its share price return that we previously mentioned. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

We regret to report that Pan Ocean shareholders are down 19% for the year (even including dividends). Unfortunately, that's worse than the broader market decline of 1.7%. However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. Longer term investors wouldn't be so upset, since they would have made 0.3%, 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. Consider risks, for instance. Every company has them, and we've spotted 1 warning sign for Pan Ocean you should know about.

But note: Pan Ocean may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

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