Health Stocks in Motion

Hologic, commenting on the study, said "The most promising finding involved a subcategory of women incuding women under 50, women with dense breasts and premenopausal or perimenopausal women, which represented 65% of the study population, digital mammography had statistically greater diagnostic accuracy than film-based systems." Hologic, which develops digital imaging technology for general radiography and mammography applications, said the findings "will further promote the use of digital mammography and help provide women with more options for high quality breast imaging." Shares of Hologic were recently trading up $6.13 to $53.05.

Other health care volume movers included Pfizer(PFE Quote), up 9 cents to $25.79; Advancis Pharma(AVNC Quote), up 13 cents to $2.18; Amgen(AMGN Quote), unchanged at $83.58; Johnson & Johnson(JNJ Quote), up 34 cents to $64.71; Bristol-Myers Squibb(BMY Quote), up 29 cents to $24.89; Schering-Plough(SGP Quote), up 9 cents to $21.03; and UnitedHealth Group(UNH Quote), up 17 cents to $53.57.