NEW YORK, Oct. 10 /PRNewswire/ -- Mergent, Inc., administrator for the HealthShares(TM) Indexes, a series of 5 underlying indexes for the HealthShares(TM) Exchange Traded Funds, today announced the quarterly rebalancing of the Indexes. This is the first rebalance of the funds reflecting the revised Index Methodologies. The following securities will be added and deleted in the Indexes effective before the opening of trading on NYSE Arca on October 21, 2008.

    (Logo:  http://www.newscom.com/cgi-bin/prnh/20080204/CLM073LOGO )

    HealthShares(TM) Cancer Index (HHK)
    Drop
    NEUROSEARCH A/S (OMX Nordic Exchange Copenhagen: NEUR)

    Add
    ARIAD PHARMACEUTICALS INC (NASDAQ: ARIA)
    BTG (London Main Market, U.K.: BGC)
    CYTOKINETICS INC (NASDAQ: CYTK)
    CHUGAI PHARM CO (Tokyo SE: 4519)
    ENZON PHARMACEUTICALS INC. (NASDAQ: ENZN)
    EXELIXIS INC (NASDAQ: EXEL)
    GERON CORP (NASDAQ: GERN)
    GTX INC (NASDAQ: GTXI)
    HALOZYME THERAPEUTICS INC. (NASDAQ: HALO)
    LIGAND PHARMACEUTICALS INC (NASDAQ: LGND)
    NEKTAR THERAPEUTICS (NASDAQ: NKTR)

    HealthShares(TM) Diagnostics Index (HHD)
    Drop
    DIASORIN SPA (Borsa Italiana MTA: DIA)
    ORION CORPORATION (OMX Nordic Exchange Helsinki: ORNAV)

    Add
    ABAXIS INC. (NASDAQ: ABAX)
    AFFYMETRIX INC. (NASDAQ: AFFX)
    AMAG PHARMACEUTICALS INC. (NASDAQ: AMAG)
    ANGIODYNAMICS INC. (NASDAQ: ANGO)
    ENZO BIOCHEM INC. (NYSE: ENZ)
    GIVEN IMAGING LTD (NASDAQ: GIVN)
    MERIT MEDICAL SYSTEMS INC. (NASDAQ: MMSI)
    NATUS MEDICAL INC (NASDAQ: BABY)
    NEOGEN CORP (NASDAQ: NEOG)
    NIGHTHAWK RADIOLOGY (NASDAQ: NHWK)
    QUIDEL CORP (NASDAQ: QDEL)
    SONOSITE INC (NASDAQ: SONO)
    TOMOTHERAPY INC (NASDAQ: TOMO)
    TOPCON CORPORATION (Tokyo SE: 7732)
    VOLCANO CORPORATION (NASDAQ: VOLC)

    HealthShares(TM) Drug Discovery Tools Index (HHV)
    Drop
    BIODEL INC (NASDAQ: BIOD)

    Add
    ARIAD PHARMACEUTICALS INC (NASDAQ: ARIA)
    CYTOKINETICS (NASDAQ: CYTK)
    ENZON PHARMACEUTICALS INC. (NASDAQ: ENZN)
    I-FLOW CORP (NASDAQ: IFLO)
    INSULET CORP (NASDAQ: PODD)
    MANNKIND CORP (NASDAQ: MNKD)
    NEKTAR THERAPEUTICS (NASDAQ: NKTR)
    OBAGI MEDICAL PRODUCTS INC (NASDAQ: OMPI)
    VITAL IMAGES INC (NASDAQ: VTAL)

    HealthShares(TM) European Drugs Index (HRJ)
    Drop
    SCHWARZ PHARMA AG (Frankfurt, Germany: SRZ GR)
    PRONOVA BIOPHARMA (Oslo, Norway: PRON)

    Add
    BTG (London Main Market, U.K.: BGC)
    CRUCELL NV (Euronext, Amsterdam: CRXL)
    ELAN CORP (Irish Main Market, Ireland: DRX)
    EURAND N.V. (NASDAQ: EURX)
    MEDIGENE AG (Frankfurt, Germany: MDG)
    MORPHOSYS (Frankfurt, Germany: MOR)
    NEUROSEARCH A/S (OMX Nordic Exchange Copenhagen: NEUR)
    NICOX SA (Euronext, Paris: COX)

The rebalanced Indexes, including the rebalanced Index Shares, are based on the closing prices as of October 9, 2008.

In accordance with the Exemptive Order, a complete list of the constituents reflecting the rebalancing will be posted at: http://www.xsharesadvisors.com/healthshares/content/view/53/274/

About Mergent

Mergent, Inc. is a leading provider of business and financial data on global publicly listed companies. Based in the U.S., the company maintains a strong global presence, with offices in New York, Charlotte, San Diego, London, Tokyo and Melbourne.

Founded in 1900, Mergent operates the longest continuously collected database of: descriptive and fundamental information on domestic and international companies; pricing and terms and conditions data on fixed income and equity securities; and corporate action data. In addition, Mergent develops and licenses equity and fixed income investment products based on its proprietary investment methodologies. Mergent-licensed products have approximately $3.5 billion in assets under management and are offered by major investment management firms. Mergent's index calculation platform is the chosen technology for some of the world's largest index companies. Its index calculation and pricing distribution protocols are used to administer index rules and distribute real-time pricing data.

For more information, please visit www.mergent.com and www.dividendachievers.com .

SOURCE Mergent, Inc.