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iShares Russell 2000 ETF (the Fund) is an exchange-traded fund. The Fund seeks investment results that correspond generally to the price and yield performance of the Russell 2000 Index (the Index). The Index is a float-adjusted capitalization weighted index that measures the performance of the small-capitalization sector of the United States equity market and includes securities issued by the approximately 2,000 smallest issuers in the Russell 3000 Index. The Fund invests in a representative sample of securities included in the Index that collectively has an investment profile similar to the Index. The Index is a subset of the Russell 3000 Index, and serves as the underlying index for the Russell 2000 Growth and Value Index series. Component companies are adjusted for available float and must meet objective criteria for inclusion to the Index. The Fund's investment adviser is BlackRock Fund Advisors (BFA).

PowerShares QQQ Trust, Series 1 is a unit investment trust that issues securities called Nasdaq-100 Index Tracking Stock. The Trust's investment objective is to provide investment results that generally correspond to the price and yield performance of the Nasdaq-100 Index. The Trust provides investors with the opportunity to purchase units of beneficial interest in the Trust representing proportionate undivided interests in the portfolio of securities held by the Trust, which consists of substantially all of the securities, in substantially the same weighting, as the component securities of the Nasdaq-100 Index. Invesco PowerShares Capital Management, LLC is the Sponsor of the Trust and The Bank of New York Mellon is the Trustee.

SPDR S&P 500 ETF Trust (the Trust) is a unit investment trust. The Trust seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of the S&P 500 Index (the Index). The Trust seeks to achieve this investment objective by holding a portfolio of the common stocks that are included in the Index (the Portfolio), with the weight of each stock in the Portfolio substantially corresponding to the weight of such stock in the Index. The Trust invests in a range of sectors, including pharmaceuticals; oil, gas and consumable fuels; technology hardware storage and peripherals; insurance; information technology (IT) services; healthcare providers and services; semiconductors and semiconductor equipment; hotels, restaurants and leisure, communications equipment; commercial services and supplies; road and rail; real estate management and development; containers and packaging; professional services, and paper and forest products.

U Power Limited, together with its subsidiaries, engages in the development, manufacture, and sale of new energy vehicles and battery swapping stations in the People's Republic of China. It also offers battery swapping and sourcing, as well as technical and consultation services. The company was founded in 2013 and is headquartered in Wuhu, the People's Republic of China.