Wireless Telecom Group, Inc. (NYSEAMERICAN:WTT – Get Rating) saw a significant increase in short interest during the month of May. As of May 31st, there was short interest totalling 84,000 shares, an increase of 189.7% from the May 15th total of 29,000 shares. Approximately 0.4% of the shares of the company are short sold. Based […]