UnitedHealth Group quarterly net profit rises 21%

LONDON (MarketWatch) -- UnitedHealth Group /quotes/comstock/13*!unh/quotes/nls/unh (UNH 31.23, +0.50, +1.63%) said that its first-quarter net profit rose to $1.19 billion, or $1.03 a share, up from $984 million, or...