Statistically speaking, long term investing is a profitable endeavour. But unfortunately, some companies simply don't succeed. To wit, the Stoneridge, Inc. (NYSE:SRI) share price managed to fall 59% over five long years. That is extremely sub-optimal, to say the least. We also note that the stock has performed poorly over the last year, with the share price down 38%. Furthermore, it's down 20% in about a quarter. That's not much fun for holders.

Now let's have a look at the company's fundamentals, and see if the long term shareholder return has matched the performance of the underlying business.

See our latest analysis for Stoneridge

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.

During five years of share price growth, Stoneridge moved from a loss to profitability. Most would consider that to be a good thing, so it's counter-intuitive to see the share price declining. Other metrics might give us a better handle on how its value is changing over time.

In contrast to the share price, revenue has actually increased by 5.8% a year in the five year period. So it seems one might have to take closer look at the fundamentals to understand why the share price languishes. After all, there may be an opportunity.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

We like that insiders have been buying shares in the last twelve months. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. This free report showing analyst forecasts should help you form a view on Stoneridge

A Different Perspective

While the broader market gained around 33% in the last year, Stoneridge shareholders lost 38%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 10% over the last half decade. We realise that Baron Rothschild has said investors should "buy when there is blood on the streets", but we caution that investors should first be sure they are buying a high quality business. 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. Like risks, for instance. Every company has them, and we've spotted 3 warning signs for Stoneridge (of which 2 are potentially serious!) you should know about.