AECOM (NYSE:ACM – Get Rating) was the target of a large increase in short interest during the month of April. As of April 30th, there was short interest totalling 1,840,000 shares, an increase of 6.4% from the April 15th total of 1,730,000 shares. Based on an average trading volume of 1,040,000 shares, the days-to-cover ratio […]