Updated from 1:45 p.m. ESTWith a handful of financial updates in the pipeline, chipmakers' shares got a boost Wednesday. Texas Instruments ( TXN), which will deliver an update on its current quarter after the bell on Monday, rose nearly 8%, or $2.33, to close at $32.18. However, it wasn't immediately clear what drove the surge in TI shares. According to Standard & Poor's semiconductor analyst Tom Smith, Intel's ( INTC) recent decision to
National Semiconductor ( NSM), which is slated to report its third-quarter results on March 9, also got a boost after Morgan Stanley bumped up its 2006 and 2007 EPS estimates for the company on expectations of positive earnings surprise. The chipmaker's shares rose $1.42, or 5.1%, to $29.47. Morgan Stanley also revised its estimates for Advanced Micro Devices ( AMD), lifting projected 2006 EPS to $1.70 from $1.60 as a result of the company's increased penetration in the enterprise server market. Shares of AMD closed up $1.40, to 3.6%, to $40.07.