Merck KGaA (OTCMKTS:MKGAF – Get Free Report) saw a significant increase in short interest in the month of November. As of November 15th, there was short interest totalling 499,700 shares, an increase of 25.6% from the October 31st total of 397,900 shares. Based on an average trading volume of 4,600 shares, the days-to-cover ratio is […]