-- Key rating strengths of the consolidated UnitedHealth Group Inc. include its very strong business profile, strong earnings and cash flow, and robust liquidity and financial flexibility. -- Offsetting factors include relatively aggressive share-repurchase activity relative to free cash flow generation, modest tangible net worth, and a pressured industry risk profile. -- We are affirming our 'A-' counterparty credit rating on UnitedHealth Group Inc. and our counterparty credit and financial strength ratings on its core and strategically important subsidiaries. -- The negative outlook reflects our belief that the organization could experience material adverse business development. NEW YORK (Standard&Poor's) Oct. 7, 2009--Standard&Poor's Ratings Services said today that it affirmed its 'A-' counterparty credit rating on UnitedHealth Group