It might seem bad, but the worst that can happen when you buy a stock (without leverage) is that its share price goes to zero. But when you pick a company that is really flourishing, you can make more than 100%. To wit, the SF Oilless Bearing Group Co., Ltd. (SZSE:300817) share price has flown 232% in the last three years. Most would be happy with that. It's also good to see the share price up 100% over the last quarter. This could be related to the recent financial results, released recently - you can catch up on the most recent data by reading our company report.

The past week has proven to be lucrative for SF Oilless Bearing Group investors, so let's see if fundamentals drove the company's three-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.

Over the last three years, SF Oilless Bearing Group failed to grow earnings per share, which fell 10% (annualized).

Thus, it seems unlikely that the market is focussed on EPS growth at the moment. 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.

Languishing at just 0.7%, we doubt the dividend is doing much to prop up the share price. Do you think that shareholders are buying for the 2.3% per annum revenue growth trend? We don't. So truth be told we can't see an easy explanation for the share price action, but perhaps you can...

You can see below how earnings and revenue have changed over time (discover the exact values by clicking on the image).

You can see how its balance sheet has strengthened (or weakened) over time in this free interactive graphic.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of SF Oilless Bearing Group, it has a TSR of 248% 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

It's good to see that SF Oilless Bearing Group has rewarded shareholders with a total shareholder return of 192% in the last twelve months. And that does include 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. 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 - SF Oilless Bearing Group has 3 warning signs (and 2 which are concerning) we think you should know about.

But note: SF Oilless Bearing Group 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 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.