Among the largest underlying components of FXL, in trading today Western Digital Corp. ( NASD: WDC) is off about 1.9%, Avnet Inc ( NYSE: AVT) is down about 2.1%, and Arrow Electronics, Inc. ( NYSE: ARW) is lower by about 2.2%.

FORBES: First Trust Technology AlphaDEX Fund Experiences Big Outflow

Among the largest underlying components of FEX, in trading today Advanced Micro Devices, Inc. ( NYSE: AMD) is down about 1.1%, Western Digital Corp. ( NYSE: WDC) is up about 1.2%, and Marathon Petroleum Corp. ( NYSE: MPC) is higher by about 0.8%.

FORBES: Noteworthy ETF Inflows: FEX, AMD, WDC, MPC