Teradyne's stock up 18.5% post-results. Nova's stock up 31.6...

Teradyne's stock up 18.5% post-results. Nova's stock up 31.6% after beating analyst estimates. Despite weak quarters, IPG Photonics and Marvell Technology's stocks are up 19.5% and 17.5% respectively. Applied Materials' stock down 2.2% despite strong quarter.