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 completely lacks a track record of revenue and profit. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.'

In contrast to all that, I prefer to spend time on companies like IGO (ASX:IGO), which has not only revenues, but also profits. While profit is not necessarily a social good, it's easy to admire a business that can consistently produce it. 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 IGO

How Quickly Is IGO Increasing Earnings Per Share?

If a company can keep growing earnings per share (EPS) long enough, its share price will eventually follow. It's no surprise, then, that I like to invest in companies with EPS growth. Impressively, IGO has grown EPS by 20% per year, compound, in the last three years. As a result, we can understand why the stock trades on a high multiple of trailing twelve month earnings.

I like to take a look at earnings before interest and (EBIT) tax margins, as well as revenue growth, to get another take on the quality of the company's growth. The good news is that IGO is growing revenues, and EBIT margins improved by 11.1 percentage points to 26%, over the last year. Ticking those two boxes is a good sign of growth, in my book.

The chart below shows how the company's bottom and top lines have progressed 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 IGO?

Are IGO Insiders Aligned With All Shareholders?

Like standing at the lookout, surveying the horizon at sunrise, insider buying, for some investors, sparks joy. Because oftentimes, the purchase of stock is a sign that the buyer views it as undervalued. However, small purchases are not always indicative of conviction, and insiders don't always get it right.

Any way you look at it IGO shareholders can gain quiet confidence from the fact that insiders shelled out AU$352k to buy stock, over the last year. When you contrast that with the complete lack of sales, it's easy for shareholders to brim with joyful expectancy. Zooming in, we can see that the biggest insider purchase was by Independent Non-Executive Chairman Michael P. Nossal for AU$256k worth of shares, at about AU$6.40 per share.

Along with the insider buying, another encouraging sign for IGO is that insiders, as a group, have a considerable shareholding. To be specific, they have AU$37m worth of shares. That's a lot of money, and no small incentive to work hard. Even though that's only about 0.6% of the company, it's enough money to indicate alignment between the leaders of the business and ordinary shareholders.

Does IGO Deserve A Spot On Your Watchlist?

Given my belief that share price follows earnings per share you can easily imagine how I feel about IGO's strong EPS growth. Not only that, but we can see that insiders both own a lot of, and are buying more, shares in the company. So I do think this is one stock worth watching. Before you take the next step you should know about the 1 warning sign for IGO that we have uncovered.

As a growth investor I do like to see insider buying. But IGO isn't the only one. You can see a a free list of them here.

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

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.

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