The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But in contrast you can make much more than 100% if the company does well. For example, the Exelixis, Inc. (NASDAQ:EXEL) share price has soared 127% in the last three years. How nice for those who held the stock! On top of that, the share price is up 38% in about a quarter.

With that in mind, it's worth seeing if the company's underlying fundamentals have been the driver of long term performance, or if there are some discrepancies.

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. 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.

Exelixis was able to grow its EPS at 46% per year over three years, sending the share price higher. This EPS growth is higher than the 31% average annual increase in the share price. So one could reasonably conclude that the market has cooled on the stock.

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

We know that Exelixis has improved its bottom line over the last three years, but what does the future have in store? This free interactive report on Exelixis' balance sheet strength is a great place to start, if you want to investigate the stock further.

A Different Perspective

It's good to see that Exelixis has rewarded shareholders with a total shareholder return of 64% in the last twelve months. That gain is better than the annual TSR over five years, which is 16%. Therefore it seems like sentiment around the company has been positive lately. 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. Consider for instance, the ever-present spectre of investment risk. We've identified 1 warning sign with Exelixis , and understanding them should be part of your investment process.

For those who like to find winning investments this free list of undervalued 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.