Some have more dollars than sense, they say, so even companies that have no revenue, no profit, and a record of falling short, can easily find investors. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.'

In the age of tech-stock blue-sky investing, my choice may seem old fashioned; I still prefer profitable companies like Robert Half International (NYSE:RHI). While that doesn't make the shares worth buying at any price, you can't deny that successful capitalism requires profit, eventually. Conversely, a loss-making company is yet to prove itself with profit, and eventually the sweet milk of external capital may run sour.

Check out our latest analysis for Robert Half International

Robert Half International's Earnings Per Share Are Growing.

If you believe that markets are even vaguely efficient, then over the long term you'd expect a company's share price to follow its earnings per share (EPS). That means EPS growth is considered a real positive by most successful long-term investors. We can see that in the last three years Robert Half International grew its EPS by 12% per year. That growth rate is fairly good, assuming the company can keep it up.

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 Robert Half International's EBIT margins were flat over the last year, revenue grew by a solid 6.2% to US$6.0b. That's a real positive.

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.

Of course the knack is to find stocks that have their best days in the future, not in the past. You could base your opinion on past performance, of course, but you may also want to check this interactive graph of professional analyst EPS forecasts for Robert Half International.

Are Robert Half International Insiders Aligned With All Shareholders?

We would not expect to see insiders owning a large percentage of a US$7.2b company like Robert Half International. But we are reassured by the fact they have invested in the company. Notably, they have an enormous stake in the company, worth US$210m. This suggests to me that leadership will be very mindful of shareholders' interests when making decisions!

Is Robert Half International Worth Keeping An Eye On?

One important encouraging feature of Robert Half International is that it is growing profits. If that's not enough on its own, there is also the rather notable levels of insider ownership. That combination appeals to me, for one. So yes, I do think the stock is worth keeping an eye on. Of course, just because Robert Half International 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.

You can invest in any company you want. But if you prefer to focus on stocks that have demonstrated insider buying, here is a list of companies with insider buying in the last three months.

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

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Thank you for reading.