It's easy to match the overall market return by buying an index fund. But if you buy individual stocks, you can do both better or worse than that. For example, the O-I Glass, Inc. (NYSE:OI) share price is down 40% in the last year. That's well below the market return of 25%. Longer term shareholders haven't suffered as badly, since the stock is down a comparatively less painful 16% in three years. Even worse, it's down 22% in about a month, which isn't fun at all.

Given the past week has been tough on shareholders, let's investigate the fundamentals and see what we can learn.

See our latest analysis for O-I Glass

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

O-I Glass fell to a loss making position during the year. While this may prove temporary, we'd consider it a negative, so it doesn't surprise us that the stock price is down. We hope for shareholders' sake that the company becomes profitable again soon.

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

It's probably worth noting we've seen significant insider buying in the last quarter, which we consider a positive. That said, we think earnings and revenue growth trends are even more important factors to consider. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

A Different Perspective

O-I Glass shareholders are down 40% for the year, but the market itself is up 25%. 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 3% over the last half decade. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. 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. For example, we've discovered 1 warning sign for O-I Glass that you should be aware of before investing here.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: most of them are flying under the radar).

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