U.S. electronic manufacturing services (EMS) provider Jabil's credit measures have strengthened due to revenue growth and improving profitability, reflecting benefits of revenue mix change and prior restructurings. We are revising our rating outlook to positive from stable and affirming our 'BB+' corporate credit rating. The positive rating outlook reflects the potential for an upgrade if Jabil can sustain leverage at current levels for the next year, while maintaining adequate liquidity and moderate financial policies. NEW YORK (Standard&Poor's) Nov. 30, 2011--Standard&Poor's Rating Services said today that it revised its outlook on St. Petersburg, Fla.-based Jabil Circuit Inc. to positive from stable. At the same time, we affirmed our existing ratings on the company, including the 'BB+' corporate