HealthShares Composite Exchange-Traded Fund seeks to track the performance of the HealthShares Composite Index. The Composite Index is an index of United States and foreign equity securities of healthcare, life sciences and/or biotechnology companies that have been included in the HealthShares Autoimmune-Inflammation Index, the HealthShares Cancer Index, the HealthShares Cardio Devices Index, the HealthShares Cardiology Index, the HealthShares Dermatology & Wound Care Index, the HealthShares Diagnostics Index, the HealthShares Emerging Cancer Index, the HealthShares Enabling Technologies Index, the HealthShares GI/Gender Health Index, the HealthShares Infectious Disease Index, the HealthShares Metabolic-Endocrine Disorders Index, the HealthShares Neuroscience Index, the HealthShares Ophthalmology Index, the HealthShares Orthopedic Repair Index, the HealthShares Patient Care Services Index and the HealthShares Respiratory/Pulmonary Index. XShares Advisors LLC is its investment advisor.