Among the largest underlying components of FXZ, in trading today CF Industries Holdings Inc ( NYSE: CF) is off about 0.3%, LyondellBasell Industries NV ( NYSE: LYB) is down about 0.9%, and Timken Co. ( NYSE: TKR) is lower by about 0.2%.

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Among the largest underlying components of VXF, in trading today Las Vegas Sands Corp ( NYSE: LVS) is down about 1.7%, LyondellBasell Industries NV ( NYSE: LYB) is off about 3.8%, and General Motors Co. ( NYSE: GM) is lower by about 0.4%.

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Among the largest underlying components of SMH, in trading today Texas Instruments Inc. ( NASD: TXN) is up about 0.5%, ASML Holding NV ( NASD: ASML) is up about 2.3%, and Applied Materials, Inc. ( NASD: AMAT) is up by about 1%.

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