If you are building a properly diversified stock portfolio, the chances are some of your picks will perform badly. But the long term shareholders of Y-mAbs Therapeutics, Inc. (NASDAQ:YMAB) have had an unfortunate run in the last three years. Sadly for them, the share price is down 57% in that time. The last week also saw the share price slip down another 17%. Importantly, this could be a market reaction to the recently released financial results. You can check out the latest numbers in our company report.

Given the past week has been tough on shareholders, let's investigate the fundamentals and see what we can learn.

Given that Y-mAbs Therapeutics didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. When a company doesn't make profits, we'd generally hope to see good revenue growth. Some companies are willing to postpone profitability to grow revenue faster, but in that case one would hope for good top-line growth to make up for the lack of earnings.

Over three years, Y-mAbs Therapeutics grew revenue at 39% per year. That is faster than most pre-profit companies. In contrast, the share price is down 16% compound, over three years - disappointing by most standards. This could mean hype has come out of the stock because the losses are concerning investors. But a share price drop of that magnitude could well signal that the market is overly negative on the stock.

You can see below how earnings and revenue have changed over time (discover the exact values by clicking on the image).

Balance sheet strength is crucial. It might be well worthwhile taking a look at our free report on how its financial position has changed over time.

A Different Perspective

We're pleased to report that Y-mAbs Therapeutics shareholders have received a total shareholder return of 37% over one year. Notably the five-year annualised TSR loss of 7% per year compares very unfavourably with the recent share price performance. We generally put more weight on the long term performance over the short term, but the recent improvement could hint at a (positive) inflection point within the business. 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 learn about the 4 warning signs we've spotted with Y-mAbs Therapeutics (including 1 which is significant) .

If you are like me, then you will not want to miss this free list of growing 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.