One simple way to benefit from the stock market is to buy an index fund. But if you pick the right individual stocks, you could make more than that. Just take a look at Kratos Defense & Security Solutions, Inc. (NASDAQ:KTOS), which is up 93%, over three years, soundly beating the market return of 30% (not including dividends).

Although Kratos Defense & Security Solutions has shed US$168m from its market cap this week, let's take a look at its longer term fundamental trends and see if they've driven returns.

View our latest analysis for Kratos Defense & Security Solutions

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. 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.

During three years of share price growth, Kratos Defense & Security Solutions moved from a loss to profitability. So we would expect a higher share price over the period.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

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

A Different Perspective

We're pleased to report that Kratos Defense & Security Solutions shareholders have received a total shareholder return of 83% over one year. That's better than the annualised return of 9% over half a decade, implying that the company is doing better recently. In the best case scenario, this may hint at some real business momentum, implying that now could be a great time to delve deeper. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. To that end, you should be aware of the 1 warning sign we've spotted with Kratos Defense & Security Solutions .

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of undervalued small cap companies that insiders are buying.

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.