[The Three Major U.S. Stock Indexes Closed Mixed] The three major U.S. stock indexes closed mixed, with the Dow Jones up 0.02%, the Nasdaq up 0.17%, and the S&P 500 down 0.01%. Storage concept stocks rose, with Seagate Technology up more than 19%, Western Digital up more than 10%, SanDisk up more than 9%, and Micron Technology up more than 6%.