On 3/11/13, Public Storage (PSA) will trade ex-dividend, for its quarterly dividend of $1.25, payable on 3/28/13. As a percentage of PSA's recent stock price of $152.75, this dividend works out to approximately 0.82%, so look for shares of Public Storage to trade 0.82% lower all else being equal when PSA shares open for trading on 3/11/13.