GameStop shares jumped 25.2% after it said it raised $933.4 million in cash through a previously announced sale of stock. The company, whose stock price has often moved more on investors' enthusiasm than any change to its profit prospects, said it could use the cash for acquisitions, investments or other general corporate purposes.

Stock futures are quiet to start the holiday-shortened week, following mixed weekly results for the major indexes. Investors are preparing for some end-of-week inflation data that could provide key insight into the state of the U.