The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But on a lighter note, a good company can see its share price rise well over 100%. For example, the Insperity, Inc. (NYSE:NSP) share price has soared 161% in the last half decade. Most would be very happy with that. On top of that, the share price is up 15% in about a quarter.

So let’s investigate and see if the longer term performance of the company has been in line with the underlying business’ progress.

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To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it’s a weighing machine. 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.

Insperity’s earnings per share are down 8.0% per year, despite strong share price performance over five years.

Essentially, it doesn’t seem likely that investors are focused on EPS. Because earnings per share don’t seem to match up with the share price, we’ll take a look at other metrics instead.

In contrast revenue growth of 11% per year is probably viewed as evidence that Insperity is growing, a real positive. In that case, the company may be sacrificing current earnings per share to drive growth.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

It’s good to see that there was some significant insider buying in the last three months. That’s a positive. On the other hand, we think the revenue and earnings trends are much more meaningful measures of the business. So we recommend checking out this free report showing consensus forecasts

It is important to consider the total shareholder return, as well as the share price return, for any given stock. The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. In the case of Insperity, it has a TSR of 196% for the last 5 years. That exceeds its share price return that we previously mentioned. This is largely a result of its dividend payments!

While the broader market gained around 10% in the last year, Insperity shareholders lost 16% (even including dividends). Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. On the bright side, long term shareholders have made money, with a gain of 24% per year over half a decade. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. It’s always interesting to track share price performance over the longer term. But to understand Insperity better, we need to consider many other factors. To that end, you should be aware of the 3 warning signs we’ve spotted with Insperity .