Active traders and day traders have many stocks to choose from this Tuesday morning.  We are tracking news and moves in shares of Amgen, Inc. (NASDAQ: AMBC), Genoptix, Inc. (NASDAQ: GXDX), and optionsXpress Holdings, Inc. (OXPS).

Amgen, Inc. (NASDAQ: AMBC) is up more than 5% premarket to $56.79, relative to a 52-week range of $50, after recent succesful trials of a cancer drug.

Genoptix, Inc. (NASDAQ: GXDX) has made major gains this morning, up 16.8% to $21.00, relative to a sizeable 52-week range of $13.51- $39.00. The company recently announced it would be selling itself at auction.

optionsXpress Holdings, Inc. (OXPS) is down more than 13% to $17.28 this morning on no major news. Shares of OXPS are trading within a range of $14.12-$21.07.