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. Unfortunately, these high risk investments often have little probability of ever paying off, and many investors pay a price to learn their lesson. A loss-making company is yet to prove itself with profit, and eventually the inflow of external capital may dry up.

Despite being in the age of tech-stock blue-sky investing, many investors still adopt a more traditional strategy; buying shares in profitable companies like 3SBio (HKG:1530). 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.

Check out our latest analysis for 3SBio

How Fast Is 3SBio 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) outcomes. Therefore, there are plenty of investors who like to buy shares in companies that are growing EPS. We can see that in the last three years 3SBio grew its EPS by 15% per year. That's a good rate of growth, if it can be sustained.

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. 3SBio shareholders can take confidence from the fact that EBIT margins are up from 26% to 31%, and revenue is growing. Ticking those two boxes is a good sign of growth, in our book.

The chart below shows how the company's bottom and top lines have progressed over time. For finer detail, click on the image.

While we live in the present moment, there's little doubt that the future matters most in the investment decision process. So why not check this interactive chart depicting future EPS estimates, for 3SBio?

Are 3SBio Insiders Aligned With All Shareholders?

It's a necessity that company leaders act in the best interest of shareholders and so insider investment always comes as a reassurance to the market. 3SBio followers will find comfort in knowing that insiders have a significant amount of capital that aligns their best interests with the wider shareholder group. We note that their impressive stake in the company is worth CN¥1.1b. This suggests that leadership will be very mindful of shareholders' interests when making decisions!

Does 3SBio Deserve A Spot On Your Watchlist?

As previously touched on, 3SBio is a growing business, which is encouraging. For those who are looking for a little more than this, the high level of insider ownership enhances our enthusiasm for this growth. The combination definitely favoured by investors so consider keeping the company on a watchlist. While we've looked at the quality of the earnings, we haven't yet done any work to value the stock. So if you like to buy cheap, you may want to check if 3SBio is trading on a high P/E or a low P/E, relative to its industry.

The beauty of investing is that you can invest in almost 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.

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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.