NEW YORK ( TheStreet) -- Shares of Tsakos Energy Navigation (NYSE: TNP) were gapping down Monday morning with an open price 10.4% lower than Friday's closing price. The stock closed at $7.01 Friday and opened today's trading at $6.28. The average volume for Tsakos Energy Navigation has been 123,900 shares per day over the past 30 days. Tsakos Energy Navigation has a market cap of $344.2 million and is part of the services sector and transportation industry. Shares are down 29.9% year to date as of the close of trading on Friday. Tsakos Energy Navigation Limited, together with its subsidiaries, provides seaborne crude oil and petroleum product transportation services worldwide. TheStreet Ratings rates Tsakos Energy Navigation as a hold. The company's strongest point has been its a solid financial position based on a variety of debt and liquidity measures that we have looked at. At the same time, however, we also find weaknesses including feeble growth in the company's earnings per share, deteriorating net income and disappointing return on equity. You can view the full Tsakos Energy Navigation Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping down? Get free SMS text alerts sent to you when the action happens by texting DOWN to 95370 or select from multiple alert options.