Investors are often guided by the idea of discovering 'the next big thing', even if that means buying 'story stocks' without any revenue, let alone profit. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.' Loss making companies can act like a sponge for capital - so investors should be cautious that they're not throwing good money after bad.

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 Interface (NASDAQ:TILE). Even if this company is fairly valued by the market, investors would agree that generating consistent profits will continue to provide Interface with the means to add long-term value to shareholders.

How Quickly Is Interface Increasing Earnings Per Share?

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. It certainly is nice to see that Interface has managed to grow EPS by 21% per year over three years. As a general rule, we'd say that if a company can keep up that sort of growth, shareholders will be beaming.

Careful consideration of revenue growth and earnings before interest and taxation (EBIT) margins can help inform a view on the sustainability of the recent profit growth. While we note Interface achieved similar EBIT margins to last year, revenue grew by a solid 5.1% to US$1.4b. That's progress.

You can take a look at the company's revenue and earnings growth trend, in the chart below. To see the actual numbers, click on the chart.

Fortunately, we've got access to analyst forecasts of Interface's future profits. You can do your own forecasts without looking, or you can take a peek at what the professionals are predicting.

Are Interface Insiders Aligned With All Shareholders?

It should give investors a sense of security owning shares in a company if insiders also own shares, creating a close alignment their interests. Shareholders will be pleased by the fact that insiders own Interface shares worth a considerable sum. As a matter of fact, their holding is valued at US$38m. That shows significant buy-in, and may indicate conviction in the business strategy. Despite being just 2.1% of the company, the value of that investment is enough to show insiders have plenty riding on the venture.

Should You Add Interface To Your Watchlist?

You can't deny that Interface has grown its earnings per share at a very impressive rate. That's attractive. With EPS growth rates like that, it's hardly surprising to see company higher-ups place confidence in the company through continuing to hold a significant investment. On the balance of its merits, solid EPS growth and company insiders who are aligned with the shareholders would indicate a business that is worthy of further research. Of course, just because Interface is growing does not mean it is undervalued. If you're wondering about the valuation, check out this gauge of its price-to-earnings ratio, as compared to its industry.

Although Interface certainly looks good, it may appeal to more investors if insiders were buying up shares. If you like to see companies with more skin in the game, then check out this handpicked selection of companies that not only boast of strong growth but have strong insider backing.

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.