 Looking into the current session, OpGen Inc. NASDAQ: OPGN shares are trading at 2.13, after a 7.03 spike. Moreover, over the past month, the stock went up by 4.93, but in the past year, fell by 74.82. 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 higher from its 52 week low by 913.27. Assuming that all other factors are held constant, this could present itself as an opportunity for investors trying to diversify their portfolio with Diagnostics Research stocks, and capitalize on the lower share price observed over the year.The PE ratio is used by long-term shareholders to assess the companys market performance against aggregate market data, historical earnings, and the industry at large. A lower PE 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.Depending on the particular phase of a business cycle, some industries will perform better than others.OpGen Inc. has a better PE ratio of 99.5 than the aggregate PE ratio of 2.38 of the Diagnostics Research industry. Ideally, one might believe that OpGen Inc. might perform better in the future than its industry group, but its probable that the stock is overvalued.Price to earnings ratio is not always a great indicator of the companys performance. Depending on the earnings makeup of a company, investors may not be able to attain key insights from trailing earnings.See more from Benzinga Morning Market Stats in 5 Minutes Benzingas Top Upgrades, Downgrades For June 9, 2020 11 Consumer Defensive Stocks Moving In Tuesdays Pre-Market SessionC 2020 Benzinga.com. Benzinga does not provide investment advice. All rights reserved. 