It is not the X-div date for this large of a move. Somebody dumped a bunch of shares. Bids below the market bought the shares; thus, the drop today. Many times this action will reverse quickly. This is a good buying opportunity, provided this is not the result of unfavorable news that is not yet public. REITs were generally strong today. I like KPA, ENN, RFS, MT, HR, and now HUMP.