It might be of some concern to shareholders to see the Bethel Automotive Safety Systems Co., Ltd (SHSE:603596) share price down 20% in the last month. But in stark contrast, the returns over the last half decade have impressed. It's fair to say most would be happy with 251% the gain in that time. Generally speaking the long term returns will give you a better idea of business quality than short periods can. The more important question is whether the stock is too cheap or too expensive today. Unfortunately not all shareholders will have held it for the long term, so spare a thought for those caught in the 38% decline over the last twelve months.

While this past week has detracted from the company's five-year return, let's look at the recent trends of the underlying business and see if the gains have been in alignment.

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. 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 half a decade, Bethel Automotive Safety Systems managed to grow its earnings per share at 27% a year. So the EPS growth rate is rather close to the annualized share price gain of 29% per year. Therefore one could conclude that sentiment towards the shares hasn't morphed very much. In fact, the share price seems to largely reflect the EPS growth.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

We know that Bethel Automotive Safety Systems has improved its bottom line lately, but is it going to grow revenue? If you're interested, you could check this free report showing consensus revenue forecasts.

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. As it happens, Bethel Automotive Safety Systems' TSR for the last 5 years was 258%, which exceeds the share price return mentioned earlier. This is largely a result of its dividend payments!

A Different Perspective

We regret to report that Bethel Automotive Safety Systems shareholders are down 37% for the year (even including dividends). Unfortunately, that's worse than the broader market decline of 17%. Having said that, it's inevitable that some stocks will be oversold in a falling market. The key is to keep your eyes on the fundamental developments. On the bright side, long term shareholders have made money, with a gain of 29% per year over half a decade. 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. It's always interesting to track share price performance over the longer term. But to understand Bethel Automotive Safety Systems better, we need to consider many other factors. Even so, be aware that Bethel Automotive Safety Systems is showing 2 warning signs in our investment analysis , and 1 of those is potentially serious...

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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.