Investing in TransMedics Group (NASDAQ:TMDX) five years ago would have delivered you a 433% gain

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Buying shares in the best businesses can build meaningful wealth for you and your family. While not every stock performs well, when investors win, they can win big. For example, the TransMedics Group, Inc. (NASDAQ:TMDX) share price is up a whopping 433% in the last half decade, a handsome return for long term holders. This just goes to show the value creation that some businesses can achieve. In more good news, the share price has risen 33% in thirty days.

Now it's worth having a look at the company's fundamentals too, because that will help us determine if the long term shareholder return has matched the performance of the underlying business.

Our free stock report includes 2 warning signs investors should be aware of before investing in TransMedics Group. Read for free now.

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 flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

During the five years of share price growth, TransMedics Group 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.

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

earnings-per-share-growth
NasdaqGM:TMDX Earnings Per Share Growth May 5th 2025

It is of course excellent to see how TransMedics Group has grown profits over the years, but the future is more important for shareholders. You can see how its balance sheet has strengthened (or weakened) over time in this free interactive graphic.

A Different Perspective

While the broader market gained around 11% in the last year, TransMedics Group shareholders lost 32%. 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 40% 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. 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 risks, for instance. Every company has them, and we've spotted 2 warning signs for TransMedics Group you should know about.

For those who like to find winning investments this free list of undervalued companies with recent insider purchasing, could be just the ticket.