Intel (NASDAQ:INTC), a designer and manufacturer of microprocessors and related semiconductor products, closed Tuesday at $48.56, up 3.41%. Shares moved higher after multiple brokerages upgraded the stock ahead of fourth-quarter earnings. Investors are also watching upcoming results and guidance for confirmation of improving AI-driven server central processing unit (CPU) demand.Trading volume reached 145.1 million shares, coming in about 56% above compared with its three-month average of 93 million shares. ...