KMG Chemicals (KMG) Shares Cross Below 200 DMA By: Market News Video August 15, 2014 at 11:12 AM EDT In trading on Friday, shares of KMG Chemicals, Inc. (KMG) crossed below their 200 day moving average of $16.59, changing hands as low as $16.56 per share.. Read More >> Related Stocks: KMG Chemicals