If you are building a properly diversified stock portfolio, the chances are some of your picks will perform badly. But the long term shareholders of On the Beach Group plc (LON:OTB) have had an unfortunate run in the last three years. So they might be feeling emotional about the 70% share price collapse, in that time.

It's worthwhile assessing if the company's economics have been moving in lockstep with these underwhelming shareholder returns, or if there is some disparity between the two. So let's do just that.

See our latest analysis for On the Beach Group

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' 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.

During five years of share price growth, On the Beach Group moved from a loss to profitability. That would generally be considered a positive, so we are surprised to see the share price is down. So given the share price is down it's worth checking some other metrics too.

Revenue is actually up 77% over the three years, so the share price drop doesn't seem to hinge on revenue, either. It's probably worth investigating On the Beach Group further; while we may be missing something on this analysis, there might also be an opportunity.

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 consider it positive that insiders have made significant purchases in the last year. 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 On the Beach Group will earn in the future (free profit forecasts).

A Different Perspective

On the Beach Group shareholders are down 4.1% for the year, but the market itself is up 4.1%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. However, the loss over the last year isn't as bad as the 11% per annum loss investors have suffered over the last half decade. We'd need to see some sustained improvements in the key metrics before we could muster much enthusiasm. 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. To that end, you should be aware of the 1 warning sign we've spotted with On the Beach Group .