On 11/26/12, Mattel Inc (MAT) will trade ex-dividend, for its quarterly dividend of $0.31, payable on 12/14/12. As a percentage of MAT's recent stock price of $36.49, this dividend works out to approximately 0.85%, so look for shares of Mattel Inc to trade 0.85% lower all else being equal when MAT shares open for trading on 11/26/12.