Looking into the current session, ReneSola Inc. SOL is trading at $6.81, after a 0.87% decrease. Over the past month, the stock decreased by 8.47%, but over the past year, it actually spiked by 206.76%. With questionable short-term performance like this, and great long-term performance, long-term shareholders might want to start looking into the company's price-to-earnings ratio.

Assuming that all other factors are held constant, this could present itself as an opportunity for shareholders trying to capitalize on the higher share price. The stock is currently under from its 52 week high by 80.96%.

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 can either represent a company's poor future earnings potential or a buying opportunity relative to other stocks. 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.

ReneSola Inc. has a better P/E ratio of 42.94 than the aggregate P/E ratio of 27.49 of the Construction & Engineering industry. Ideally, one might believe that ReneSola 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 price to earnings 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.