Myriad Genetics (MYGN - Get Report) was trading higher after the company reported a fiscal second-quarter loss that beat analysts' expectations. After touching a 52-week high of $37.35, the stock was recently up $1.28, or 3.7%, to $36.33.
Shares of MedImmune (MEDI) were rising 1.7% even after Thomas Weisel Partners downgraded the stock to market-weight from overweight, citing a lack of new drugs in the pipeline. MedImmune, which is set to report fourth-quarter earnings on Wednesday, was recently up 58 cents to $34.22.
Among losers, Mentor (MNT), a Santa Barbara, Calif.-based maker of breast implants, posted fiscal third-quarter earnings that beat the Thomson First Call consensus, but its shares were still falling. Mentor was down $2.36, or 4.5%, to $50.32.