The main aim of stock picking is to find the market-beating stocks. But even the best stock picker will only win with some selections. At this point some shareholders may be questioning their investment in China Aviation Oil (Singapore) Corporation Ltd (SGX:G92), since the last five years saw the share price fall 43%. The falls have accelerated recently, with the share price down 13% in the last three months.

Since shareholders are down over the longer term, lets look at the underlying fundamentals over the that time and see if they've been consistent with returns.

See our latest analysis for China Aviation Oil (Singapore)

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 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 five years over which the share price declined, China Aviation Oil (Singapore)'s earnings per share (EPS) dropped by 17% each year. The share price decline of 11% per year isn't as bad as the EPS decline. So the market may previously have expected a drop, or else it expects the situation will improve.

You can see below how EPS has changed over time (discover the exact values by clicking on the image).

It's probably worth noting that the CEO is paid less than the median at similar sized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. This free interactive report on China Aviation Oil (Singapore)'s earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of China Aviation Oil (Singapore), it has a TSR of -35% for the last 5 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

We're pleased to report that China Aviation Oil (Singapore) shareholders have received a total shareholder return of 3.5% over one year. Of course, that includes the dividend. That certainly beats the loss of about 6% per year over the last half decade. This makes us a little wary, but the business might have turned around its fortunes. 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 1 warning sign with China Aviation Oil (Singapore) , 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 Singaporean 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.

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