On 11/20/12, Medical Properties Trust Inc (MPW) will trade ex-dividend, for its quarterly dividend of $0.20, payable on 1/5/13. As a percentage of MPW's recent stock price of $11.24, this dividend works out to approximately 1.78%, so look for shares of Medical Properties Trust Inc to trade 1.78% lower all else being equal when MPW shares open for trading on 11/20/12.