Salesforce (CRM 144.91, -15.35, -9.6%): weakest performer in the sector, fell back below its 50-day moving average (151.74) to a level not seen in three weeks before narrowing its loss.
Micron (MU 55.81, -1.85, -3.2%): falling back to its 50-day moving average (54.99).
Lam Research (LRCX 462.68, -9.70, -2.1%): falling back below its 200-day moving average (461.11).
Applied Materials (AMAT 107.44, -2.16, -2.0%): falling back to its 200-day moving average (105.11).
Texas Instruments (TXN 177.65, -2.81, -1.6%): falling toward the midpoint of yesterday's range.
KLA Corp (KLAC 389.18, -3.97, -1.0%): inched to its best level since early August before turning negative.
Microsoft (MSFT 253.62, -1.52, -0.6%): hit its best level since mid-September before turning negative.
AMD (AMD 77.40, -0.24, -0.3%): hit its best level since mid-September before turning negative.
Apple (AAPL 148.10, +0.08, +0.1%): slipping back toward its 50-day moving average (145.83).