It hasn't been the best quarter for Green Plains Inc. (NASDAQ:GPRE) shareholders, since the share price has fallen 21% in that time. But that doesn't change the fact that the returns over the last three years have been pleasing. In fact, the company's share price bested the return of its market index in that time, posting a gain of 68%.

Since the stock has added US$79m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

Check out our latest analysis for Green Plains

Green Plains wasn't profitable in the last twelve months, it is unlikely we'll see a strong correlation between its share price and its earnings per share (EPS). Arguably revenue is our next best option. When a company doesn't make profits, we'd generally expect to see good revenue growth. As you can imagine, fast revenue growth, when maintained, often leads to fast profit growth.

In the last 3 years Green Plains saw its revenue grow at 23% per year. That's much better than most loss-making companies. The share price rise of 19% per year throughout that time is nice to see, and given the revenue growth, that gain seems somewhat justified. So now might be the perfect time to put Green Plains on your radar. If the company is trending towards profitability then it could be very interesting.

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

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. So we recommend checking out this free report showing consensus forecasts

A Different Perspective

While the broader market gained around 13% in the last year, Green Plains shareholders lost 6.3%. 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. Longer term investors wouldn't be so upset, since they would have made 10%, each year, over five years. 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. Investors who like to make money usually check up on insider purchases, such as the price paid, and total amount bought. You can find out about the insider purchases of Green Plains by clicking this link.

Green Plains is not the only stock that insiders are buying. For those who like to find winning investments this free list of growing 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 American 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.