NEW YORK ( TheStreet) -- Teekay Corporation (NYSE: TK) is trading at unusually high volume Thursday with 2.1 million shares changing hands. It is currently at 6.6 times its average daily volume and trading up $1.20 (+4%) at $31.50 as of 3:35 p.m. ET. Teekay has a market cap of $1.85 billion and is part of the services sector and transportation industry. Shares are up 13.4% year to date as of the close of trading on Wednesday. Teekay Corporation engages in the marine transportation of crude oil and gas in Bermuda and internationally. TheStreet Ratings rates Teekay as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, generally poor debt management and disappointing return on equity. You can view the full Teekay Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.