It's only natural that many investors, especially those who are new to the game, prefer to buy shares in 'sexy' stocks with a good story, even if those businesses lose money. Unfortunately, high risk investments often have little probability of ever paying off, and many investors pay a price to learn their lesson.

In contrast to all that, I prefer to spend time on companies like ACI Worldwide (NASDAQ:ACIW), which has not only revenues, but also profits. Even if the shares are fully valued today, most capitalists would recognize its profits as the demonstration of steady value generation. Loss-making companies are always racing against time to reach financial sustainability, but time is often a friend of the profitable company, especially if it is growing.

See our latest analysis for ACI Worldwide

How Fast Is ACI Worldwide Growing Its Earnings Per Share?

In the last three years ACI Worldwide's earnings per share took off like a rocket; fast, and from a low base. So the actual rate of growth doesn't tell us much. As a result, I'll zoom in on growth over the last year, instead. Like a wedge-tailed eagle on the wind, ACI Worldwide's EPS soared from US$0.53 to US$0.73, in just one year. That's a commendable gain of 38%.

One way to double-check a company's growth is to look at how its revenue, and earnings before interest and tax (EBIT) margins are changing. It seems ACI Worldwide is pretty stable, since revenue and EBIT margins are pretty flat year on year. That's not a major concern but nor does it point to the long term growth we like to see.

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.

While we live in the present moment at all times, there's no doubt in my mind that the future matters more than the past. So why not check this interactive chart depicting future EPS estimates, for ACI Worldwide?

Are ACI Worldwide Insiders Aligned With All Shareholders?

It makes me feel more secure owning shares in a company if insiders also own shares, thusly more closely aligning our interests. So it is good to see that ACI Worldwide insiders have a significant amount of capital invested in the stock. Indeed, they hold US$47m worth of its stock. That's a lot of money, and no small incentive to work hard. Even though that's only about 1.2% of the company, it's enough money to indicate alignment between the leaders of the business and ordinary shareholders.

Does ACI Worldwide Deserve A Spot On Your Watchlist?

Given my belief that share price follows earnings per share you can easily imagine how I feel about ACI Worldwide's strong EPS growth. Further, the high level of insider ownership impresses me, and suggests that I'm not the only one who appreciates the EPS growth. So this is very likely the kind of business that I like to spend time researching, with a view to discerning its true value. It's still necessary to consider the ever-present spectre of investment risk. We've identified 2 warning signs with ACI Worldwide , and understanding them should be part of your investment process.

Although ACI Worldwide certainly looks good to me, I would like it more if insiders were buying up shares. If you like to see insider buying, too, then this free list of growing companies that insiders are buying, could be exactly what you're looking for.

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.