The most you can lose on any stock (assuming you don't use leverage) is 100% of your money. But on the bright side, you can make far more than 100% on a really good stock. For instance, the price of Next Fifteen Communications Group plc (LON:NFC) stock is up an impressive 199% over the last five years. On top of that, the share price is up 32% in about a quarter.

View our latest analysis for Next Fifteen Communications Group

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Next Fifteen Communications Group's earnings per share are down 3.3% per year, despite strong share price performance over five years. This was, in part, due to extraordinary items impacting earning in the last twelve months.

By glancing at these numbers, we'd posit that the decline in earnings per share is not representative of how the business has changed over the years. Therefore, it's worth taking a look at other metrics to try to understand the share price movements.

In contrast revenue growth of 19% per year is probably viewed as evidence that Next Fifteen Communications Group is growing, a real positive. In that case, the company may be sacrificing current earnings per share to drive growth.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

We like that insiders have been buying shares in the last twelve months. Even so, future earnings will be far more important to whether current shareholders make money. So it makes a lot of sense to check out what analysts think Next Fifteen Communications Group will earn in the future (free profit forecasts).

What about the Total Shareholder Return (TSR)?

We'd be remiss not to mention the difference between Next Fifteen Communications Group's total shareholder return (TSR) and its share price return. Arguably the TSR is a more complete return calculation because it accounts for the value of dividends (as if they were reinvested), along with the hypothetical value of any discounted capital that have been offered to shareholders. Its history of dividend payouts mean that Next Fifteen Communications Group's TSR of 217% over the last 5 years is better than the share price return.

A Different Perspective

It's nice to see that Next Fifteen Communications Group shareholders have received a total shareholder return of 133% over the last year. Since the one-year TSR is better than the five-year TSR (the latter coming in at 26% per year), it would seem that the stock's performance has improved in recent times. Someone with an optimistic perspective could view the recent improvement in TSR as indicating that the business itself is getting better with time. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Consider risks, for instance. Every company has them, and we've spotted 2 warning signs for Next Fifteen Communications Group you should know about.

Next Fifteen Communications Group is not the only stock that insiders are buying. For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on GB exchanges.

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. 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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