Imerys S.A. (OTCMKTS:IMYSF – Get Free Report) was the target of a significant increase in short interest during the month of December. As of December 15th, there was short interest totalling 3,900 shares, an increase of 8.3% from the November 30th total of 3,600 shares. Based on an average daily trading volume, of 0 shares, […]