PHLX Semiconductor Sector Index (SOX)

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Definition of 'PHLX Semiconductor Sector Index (SOX)'

The PHLX Semiconductor Sector (SOX) is a modified capitalization-weighted Philadelphia Stock Exchange index composed of companies primarily involved in the design, distribution, manufacture, and sale of semiconductors.

The Index was set to an initial value of 200 on December 1, 1993 and was split two-for-one on July 24, 1995; options commenced trading on September 7, 1994.

As of June 20, 2010, there were 30 semiconductor companies represented in the index. The composition and weighting of the index is reported monthly on the nasdaqomx website
  • Altera Corp (ALTR) (4.3%)
  • Applied Materials (AMAT) (7.9%)
  • Adv Micro Devices (AMD) (3.4%)
  • Atheros Communicatio (ATHR) (1.3%)
  • Avago Technologies L (AVGO) (3.8%)
  • Broadcom Corp (BRCM) (8.3%)
  • Cree Inc (CREE) (3.6%)
  • Cirrus Logic Inc (CRUS) (0.8%)
  • Hittite Microwave Co (HITT) (1%)
  • Intel Corp (INTC) (7.7%)
  • K L A-Tencor Corp (KLAC) (4.2%)
  • Linear Technology (LLTC) (3.8%)
  • Lam Research Corp (LRCX) (3.6%)
  • Mks Instruments Inc (MKSI) (0.6%)
  • Marvell Tech Group (MRVL) (6.6%)
  • Micron Technology (MU) (3.9%)
  • Netlogic Microsystem (NETL) (1.2%)
  • Natl Semiconductor (NSM) (2.1%)
  • Nvidia Corporation (NVDA) (4.4%)
  • Novellus Systems Inc (NVLS) (1.7%)
  • Power Integratn (POWI) (0.6%)
  • Rubicon Technology (RBCN) (0.4%)
  • Sandisk Corporation (SNDK) (3.9%)
  • Stmicroelectronics (STM) (0.4%)
  • Teradyne Inc (TER) (1.4%)
  • Taiwan Semicond Ads (TSM) (3.8%)
  • Texas Instruments (TXN) (8.3%)
  • Veeco Instrument (VECO) (1%)
  • Memc Electronic Mtrl (WFR) (1.9%)
  • Xilinx Inc (XLNX) (3.9%)

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