(FFIV, IRBT, PCTI) CRWENewswire Stocks to Watch On its Fourth Quarter fiscal 2011, F5 Networks Incorporated - symbol FFIV - posted revenue of $314.6 million, an increase of 8% sequentially and 24% year over year. iRobot Corporation - symbol IRBT - reported third quarter 2011 results, posting revenue of $120.4 million, a 28% increase compared to the same period the prior year
