The traders who showed up weren't making many big moves in the extra session Tuesday, as a general lack of news kept buyers and sellers on the sidelines. The Nasdaq 100 Unit Trust ( QQQ) was the most active issue on Instinet after the bell, where it lost 0.6% to $30.92. Overall, volume was on the light side. More than an hour into extra trading, around 1.8 million shares changed hands among the 20 most active stocks on Instinet. Chip-equipment maker Novellus ( NVLS) was off 2.4% to $45.54 as the company offered essentially lukewarm comments during its midquarter update. Semiconductor gearmaker Applied Materials ( AMAT) was down 1.9%. Among other active stocks, Oracle ( ORCL) was flat at $9, and Cisco ( CSCO) was up 0.4% to $16.45. Intel ( INTC) was down 0.5% at $28.20. AT&T Wireless ( AWE) and Sun Micro ( SUNW) were each up 0.1%. Microsoft ( MSFT) was slipping 0.1%, and WorldCom ( WCOM) was unchanged. Williams ( WMB) was down 2% to $16.77 after Standard & Poor's cut the company's debt rating to triple-B from triple-B-plus, but volume was light. Bebe Stores ( BEBE) was one of the biggest losers, falling 6.6% to $18.05 on word the apparel chain's president and chief operating officer resigned.