Shares of Monolithic Power Systems Inc. MPWR advanced 5.86% to $636.89 Friday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 ...

Exxon Mobil and Chevron reported better-than-expected first-quarter profit early Friday. Exxon executives claimed, despite pressure on prices and margins, their "strategy remains unchanged." Meanwhile ...