TransMedics Group, Inc. (NASDAQ:TMDX) shareholders have seen the share price descend 17% over the month. But that doesn't change the fact that the returns over the last half decade have been spectacular. In fact, during that period, the share price climbed 540%. Impressive! So we don't think the recent decline in the share price means its story is a sad one. Only time will tell if there is still too much optimism currently reflected in the share price. It really delights us to see such great share price performance for investors.

While the stock has fallen 9.8% this week, it's worth focusing on the longer term and seeing if the stocks historical returns have been driven by the underlying 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 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 the last half decade, TransMedics Group became profitable. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

It is of course excellent to see how TransMedics Group has grown profits over the years, but the future is more important for shareholders.

A Different Perspective

Investors in TransMedics Group had a tough year, with a total loss of 22%, against a market gain of about 16%. 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. On the bright side, long term shareholders have made money, with a gain of 45% per year over half a decade. 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 TransMedics Group better, we need to consider many other factors. Consider risks, for instance.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: many of them are unnoticed AND have attractive valuation).

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on American exchanges.

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.