Mayr-Melnhof Karton AG (OTCMKTS:MNHFF – Get Free Report) was the recipient of a significant growth in short interest in May. As of May 15th, there was short interest totalling 2,000 shares, a growth of 25.0% from the April 30th total of 1,600 shares. Based on an average trading volume of 0 shares, the short-interest ratio […]