NEW YORK ( TheStreet) -- Tetra Technologies (NYSE: TTI) is trading at unusually high volume Tuesday with 2.9 million shares changing hands. It is currently at 5.7 times its average daily volume and trading down 24 cents (-2.8%) at $8.36 as of 3 p.m. ET. Tetra has a market cap of $702.9 million and is part of the basic materials sector and energy industry. Shares are down 7.9% year to date as of the close of trading on Monday. TETRA Technologies, Inc. operates as a diversified oil and gas services company. The company operates in three divisions: Fluids, Production Enhancement, and Offshore. The company has a P/E ratio of 180.6, below the average energy industry P/E ratio of 181.4 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Tetra as a hold. The company's strengths can be seen in multiple areas, such as its impressive record of earnings per share growth, compelling growth in net income and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, weak operating cash flow and poor profit margins. You can view the full Tetra 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 falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.