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. But the reality is that when a company loses money each year, for long enough, its investors will usually take their share of those losses. A loss-making company is yet to prove itself with profit, and eventually the inflow of external capital may dry up.

If this kind of company isn't your style, you like companies that generate revenue, and even earn profits, then you may well be interested in Duke Energy (NYSE:DUK). While this doesn't necessarily speak to whether it's undervalued, the profitability of the business is enough to warrant some appreciation - especially if its growing.

See our latest analysis for Duke Energy

Duke Energy's Earnings Per Share Are Growing

Generally, companies experiencing growth in earnings per share (EPS) should see similar trends in share price. That means EPS growth is considered a real positive by most successful long-term investors. We can see that in the last three years Duke Energy grew its EPS by 13% per year. That growth rate is fairly good, assuming the company can keep it up.

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. The music to the ears of Duke Energy shareholders is that EBIT margins have grown from 24% to 26% in the last 12 months and revenues are on an upwards trend as well. Ticking those two boxes is a good sign of growth, in our book.

You can take a look at the company's revenue and earnings growth trend, in the chart below. 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 Duke Energy's future profits.

Are Duke Energy Insiders Aligned With All Shareholders?

Owing to the size of Duke Energy, 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$119m. While that is a lot of skin in the game, we note this holding only totals to 0.1% of the business, which is a result of the company being so large. This still shows shareholders there is a degree of alignment between management and themselves.

Does Duke Energy Deserve A Spot On Your Watchlist?

One important encouraging feature of Duke Energy is that it is growing profits. If that's not enough on its own, there is also the rather notable levels of insider ownership. The combination definitely favoured by investors so consider keeping the company on a watchlist. We don't want to rain on the parade too much, but we did also find 3 warning signs for Duke Energy (1 is significant!) that you need to be mindful of.

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.