word op ex sucks because friday was the first you are getting ripped on a week of premium, you gotta have feb calls on aapl and goog, MM's rolling in it.
a) You possibly waste your time trying to explain "why" certain stocks went down.
b) If MU and JDSU are weak on unrelated earnings news, how bad will they do if the tech/semi sector gets downgraded outright or sector earnings reports come in weak?