When I ran a query for all stocks that were underperforming the Dow by at least 25%, I found this one, which indicated a 50.74% price drop today.  I checked out the fundamentals and the news, and the price drop indicated made no sense!  This was a good stock that had no reason to be cut like that; also, the charts didn't show such a drop.  This could only mean one thing: KMT was recently split.

Stocks that split usually go up in price.  Keep an eye on KMT, it may be a buying opportunity.