 CompX International Inc. NYSEAMERICAN:CIX saw a large decrease in short interest in May. As of May 29th, there was short interest totalling 31,000 shares, a decrease of 7.7 from the May 14th total of 33,600 shares. Currently, 1.9 of the shares of the company are short sold. Based on an average trading volume of 5,800 ... 