Wärtsilä Oyj Abp (OTCMKTS:WRTBY – Get Free Report) was the target of a significant drop in short interest in the month of January. As of January 15th, there was short interest totalling 4,600 shares, a drop of 47.7% from the December 31st total of 8,800 shares. Based on an average daily volume of 1,800 shares, […]