On 2/1/13, Global Partners LP (GLP) will trade ex-dividend, for its quarterly dividend of $0.57, payable on 2/14/13. As a percentage of GLP's recent stock price of $33.20, this dividend works out to approximately 1.72%, so look for shares of Global Partners LP to trade 1.72% lower all else being equal when GLP shares open for trading on 2/1/13.