Looking into the current session, Planet Fitness Inc. (NYSE:PLNT) shares are trading at $58.19, after a 3.16% increase. Moreover, over the past month, the stock spiked by 8.03%, but in the past year, fell by 16.88%. Shareholders might be interested in knowing whether the stock is undervalued, even if the company is performing up to par in the current session.

The stock is currently above from its 52 week low by 144.80%. Assuming that all other factors are held constant, this could present itself as an opportunity for investors trying to diversify their portfolio with Leisure stocks, and capitalize on the lower share price observed over the year.

The P/E ratio is used by long-term shareholders to assess the company’s market performance against aggregate market data, historical earnings, and the industry at large. A lower P/E indicates that shareholders do not expect the stock to perform better in the future, and that the company is probably undervalued. It shows that shareholders are less than willing to pay a high share price, because they do not expect the company to exhibit growth, in terms of future earnings.

Most often, an industry will prevail in a particular phase of a business cycle, than other industries.

Planet Fitness Inc. has a better P/E ratio of 137.59 than the aggregate P/E ratio of 11.27 of the Leisure industry. Ideally, one might believe that Planet Fitness Inc. might perform better in the future than it’s industry group, but it’s probable that the stock is overvalued.

There are many limitations to P/E ratio. It is sometimes difficult to determine the nature of the earnings makeup of a company. Shareholders might not get what they're looking for, from trailing earnings.