TETRA Technologies saw a increase in short interest in the month of June. As of June 30th, there was short interest totaling 8,870,000 shares, an increase of 77.8% from the June 15th total of 4,990,000 shares. Based on an average daily volume of 5,450,000 shares, the short-interest ratio is presently 1.6 days. Currently, 7.3% of the shares of the stock are short sold