tellabs fell almost 3% on stronger than usual volume. an analyst at morgan keegan downgraded tellabs over flat sales expectations and weak investor sentiment. watching hewlett packard after the close as the company announced its new c.e.o. shares ended the day down 1%, and fell another 4% after the close. shares traded above $46 the day before mark hurd was forced out from the corner office; after the close, shares were trading below $41. another tech stock to watch is comverse technology. it makes telecommunications software, and may be the focus of some buyout interest. shares bucked the weak market today, jumping more than 15% on six times its usual volume. "the wall street journal" reports oracle and others are kicking the wheels. apple always is the source of market rumors, and today, the focus fell on possible suppliers for the next iphone that is in the works. that may help explain some of the buying interest in wireless technology firm qualcomm. shares added almost 2% on twice its usual volume. this is its highest price since lat