If you are building a properly diversified stock portfolio, the chances are some of your picks will perform badly. Long term BlackLine, Inc. (NASDAQ:BL) shareholders know that all too well, since the share price is down considerably over three years. Unfortunately, they have held through a 57% decline in the share price in that time. The falls have accelerated recently, with the share price down 17% in the last three months.

While the last three years has been tough for BlackLine shareholders, this past week has shown signs of promise. So let's look at the longer term fundamentals and see if they've been the driver of the negative returns.

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

BlackLine became profitable within the last five years. We would usually expect to see the share price rise as a result. So given the share price is down it's worth checking some other metrics too.

We note that, in three years, revenue has actually grown at a 17% annual rate, so that doesn't seem to be a reason to sell shares. This analysis is just perfunctory, but it might be worth researching BlackLine more closely, as sometimes stocks fall unfairly. This could present an opportunity.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

It's good to see that there was some significant insider buying in the last three months. That's a positive. That said, we think earnings and revenue growth trends are even more important factors to consider. This free report showing analyst forecasts should help you form a view on BlackLine

A Different Perspective

Investors in BlackLine had a tough year, with a total loss of 15%, against a market gain of about 25%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Longer term investors wouldn't be so upset, since they would have made 0.7%, each year, over five years. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. It's always interesting to track share price performance over the longer term. But to understand BlackLine better, we need to consider many other factors. To that end, you should learn about the 4 warning signs we've spotted with BlackLine (including 2 which are significant) .

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.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com