U.S. Markets open in 3 hrs 9 mins

Announcing: Marinus Pharmaceuticals (NASDAQ:MRNS) Stock Increased An Energizing 187% In The Last Three Years

Simply Wall St

Want to participate in a short research study? Help shape the future of investing tools and you could win a $250 gift card!

It might seem bad, but the worst that can happen when you buy a stock (without leverage) is that its share price goes to zero. But when you pick a company that is really flourishing, you can make more than 100%. To wit, the Marinus Pharmaceuticals, Inc. (NASDAQ:MRNS) share price has flown 187% in the last three years. That sort of return is as solid as granite. In the last week shares have slid back 2.8%.

Check out our latest analysis for Marinus Pharmaceuticals

With zero revenue generated over twelve months, we don't think that Marinus Pharmaceuticals has proved its business plan yet. As a result, we think it's unlikely shareholders are paying much attention to current revenue, but rather speculating on growth in the years to come. It seems likely some shareholders believe that Marinus Pharmaceuticals will significantly advance the business plan before too long.

As a general rule, if a company doesn't have much revenue, and it loses money, then it is a high risk investment. You should be aware that there is always a chance that this sort of company will need to issue more shares to raise money to continue pursuing its business plan. While some companies like this go on to deliver on their plan, making good money for shareholders, many end in painful losses and eventual de-listing. Marinus Pharmaceuticals has already given some investors a taste of the sweet gains that high risk investing can generate, if your timing is right.

When it last reported its balance sheet in March 2019, Marinus Pharmaceuticals had cash in excess of all liabilities of US$51m. That's not too bad but management may have to think about raising capital or taking on debt, unless the company is close to breaking even. With the share price up 42% per year, over 3 years, the market is seems hopeful about the potential, despite the cash burn. You can see in the image below, how Marinus Pharmaceuticals's cash levels have changed over time (click to see the values).

NasdaqGM:MRNS Historical Debt, June 20th 2019

In reality it's hard to have much certainty when valuing a business that has neither revenue or profit. One thing you can do is check if company insiders are buying shares. It's usually a positive if they have, as it may indicate they see value in the stock. You can click here to see if there are insiders buying.

A Different Perspective

Marinus Pharmaceuticals shareholders are down 38% for the year, but the broader market is up 5.0%. Of course the long term matters more than the short term, and even great stocks will sometimes have a poor year. Fortunately the longer term story is brighter, with total returns averaging about 42% per year over three years. The recent sell-off could be an opportunity if the business remains sound, so it may be worth checking the fundamental data for signs of a long-term growth trend. Most investors take the time to check the data on insider transactions. You can click here to see if insiders have been buying or selling.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.