For beginners, it can seem like a good idea (and an exciting prospect) to buy a company that tells a good story to investors, even if it currently lacks a track record of revenue and profit. Unfortunately, these high risk investments often have little probability of ever paying off, and many investors pay a price to learn their lesson. Loss-making companies are always racing against time to reach financial sustainability, so investors in these companies may be taking on more risk than they should.

So if this idea of high risk and high reward doesn't suit, you might be more interested in profitable, growing companies, like Nu Holdings (NYSE:NU). Even if this company is fairly valued by the market, investors would agree that generating consistent profits will continue to provide Nu Holdings with the means to add long-term value to shareholders.

Nu Holdings' Improving Profits

In the last three years Nu Holdings' earnings per share took off; so much so that it's a bit disingenuous to use these figures to try and deduce long term estimates. Thus, it makes sense to focus on more recent growth rates, instead. Outstandingly, Nu Holdings' EPS shot from US$0.22 to US$0.41, over the last year. It's not often a company can achieve year-on-year growth of 88%. The best case scenario? That the business has hit a true inflection point.

It's often helpful to take a look at earnings before interest and tax (EBIT) margins, as well as revenue growth, to get another take on the quality of the company's growth. Not all of Nu Holdings' revenue this year is revenue from operations, so keep in mind the revenue and margin numbers used in this article might not be the best representation of the underlying business. Nu Holdings maintained stable EBIT margins over the last year, all while growing revenue 49% to US$5.5b. That's a real positive.

In the chart below, you can see how the company has grown earnings and revenue, over time. Click on the chart to see the exact numbers.

You don't drive with your eyes on the rear-view mirror, so you might be more interested in this free report showing analyst forecasts for Nu Holdings' future profits.

Are Nu Holdings Insiders Aligned With All Shareholders?

Owing to the size of Nu Holdings, we wouldn't expect insiders to hold a significant proportion of the company. But thanks to their investment in the company, it's pleasing to see that there are still incentives to align their actions with the shareholders. Indeed, they have a considerable amount of wealth invested in it, currently valued at US$1.4b. Holders should find this level of insider commitment quite encouraging, since it would ensure that the leaders of the company would also experience their success, or failure, with the stock.

Is Nu Holdings Worth Keeping An Eye On?

Nu Holdings' earnings per share growth have been climbing higher at an appreciable rate. That sort of growth is nothing short of eye-catching, and the large investment held by insiders should certainly brighten the view of the company. The hope is, of course, that the strong growth marks a fundamental improvement in the business economics. Based on the sum of its parts, we definitely think its worth watching Nu Holdings very closely. If you think Nu Holdings might suit your style as an investor, you could go straight to its annual report, or you could first check our discounted cash flow (DCF) valuation for the company.

While opting for stocks without growing earnings and absent insider buying can yield results, for investors valuing these key metrics, here is a carefully selected list of companies in the US with promising growth potential and insider confidence.

Please note the insider transactions discussed in this article refer to reportable transactions in the relevant jurisdiction.

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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.