Among the largest underlying components of IYW, in trading today Texas Instruments Incorporated ( NYSE: TXN) is off about 1.2%, Dell Corporation ( NASD: DELL) is down about 1.8%, and Corning Incorporated ( NYSE: GLW) is lower by about 1.8%.

FORBES: Tech Stocks Continue To Slide Due To Global Economic Concerns

Among the largest underlying components of IYW, in trading today Texas Instruments Incorporated ( NYSE: TXN) is up about 1.7%, Dell Corporation ( NASD: DELL) is down about 0.9%, and Corning Incorporated ( NYSE: GLW) is lower by about 2.3%.

FORBES: Tech Fund Sees Significant Outflows -- DELL, TXN, GLW Impacted

Dell's fiscal year 2012 had an extra week, which was incorporated into the company's Q4 results.

ENGADGET: Dell reports Q4 2013 earnings: $14.3 billion in revenue as profits plummet 31 percent year-over-year