Among the largest underlying components of TYH, in trading today AOL Inc. ( NYSE: AOL) is up about 0.8%, AVX Corp. ( NYSE: AVX) is up about 1%, and Acme Packet Inc ( NASD: APKT) is relatively unchanged.
Among the largest underlying components of TYH, in trading today Tellabs, Inc. ( NASD: TLAB) is down about 0.5%, MEMC Electronic Materials, Inc. ( NYSE: WFR) is down about 4%, and Brocade Communications Systems, Inc. ( NASD: BRCD) is lower by about 0.8%.