When we invest, we're generally looking for stocks that outperform the market average. Buying under-rated businesses is one path to excess returns. To wit, the Gogo share price has climbed 100% in five years, easily topping the market return of 80% (ignoring dividends).

Since it's been a strong week for Gogo shareholders, let's have a look at trend of the longer term fundamentals.

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 way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

During the five years of share price growth, Gogo moved from a loss to profitability. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

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

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. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

A Different Perspective

Investors in Gogo had a tough year, with a total loss of 27%, against a market gain of about 28%. 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 15%, 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. It's always interesting to track share price performance over the longer term. But to understand Gogo better, we need to consider many other factors. Take risks, for example - Gogo has 3 warning signs we think you should be aware of.

Gogo is not the only stock that insiders are buying. For those who like to find lesser know companies 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.