Boeing (BA -3.8%) shares slide at the open after posting a sharp drop in Q4 operating income -...

|About: The Boeing Company (BA)|By:, SA News Editor

Boeing (BA -3.8%) shares slide at the open after posting a sharp drop in Q4 operating income - down 35% Y/Y - and guiding 2011 numbers lower, citing delays to its new 787 Dreamliner and higher pension expenses. Boeing has not said how much it has invested in the Dreamliner or how much over budget the project is.