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 example, the China National Nuclear Power Co., Ltd. (SHSE:601985) share price has soared 107% in the last half decade. Most would be very happy with that. It's also up 8.6% in about a month. But the price may well have benefitted from a buoyant market, since stocks have gained 24% in the last thirty days.

The past week has proven to be lucrative for China National Nuclear Power investors, so let's see if fundamentals drove the company's five-year performance.

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. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

During five years of share price growth, China National Nuclear Power achieved compound earnings per share (EPS) growth of 13% per year. So the EPS growth rate is rather close to the annualized share price gain of 16% per year. This indicates that investor sentiment towards the company has not changed a great deal. In fact, the share price seems to largely reflect the EPS growth.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

We know that China National Nuclear Power has improved its bottom line lately, but is it going to grow revenue? Check if analysts think China National Nuclear Power will grow revenue in the future.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. We note that for China National Nuclear Power the TSR over the last 5 years was 133%, which is better than the share price return mentioned above. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

It's good to see that China National Nuclear Power has rewarded shareholders with a total shareholder return of 55% in the last twelve months. Of course, that includes the dividend. That gain is better than the annual TSR over five years, which is 18%. Therefore it seems like sentiment around the company has been positive lately. Given the share price momentum remains strong, it might be worth taking a closer look at the stock, lest you miss an opportunity. 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. Even so, be aware that China National Nuclear Power is showing 2 warning signs in our investment analysis , and 1 of those is a bit unpleasant...

For those who like to find winning investments this free list of undervalued companies with recent insider purchasing, could be just the ticket.

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