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ProShares UltraShort Dow30 (the Fund), formerly UltraShort Dow30 ProShares, seeks daily investment results that correspond to twice (200%) the inverse (opposite) of the daily performance of the Dow Jones Industrial Average (DJIA). The DJIA is a price-weighted index maintained by editors of The Wall Street Journal. The Index includes 30 large-cap, blue-chip United States stocks, excluding utility and transportation companies. Components are selected through a discretionary process with no predetermined criteria except that components should be established United States companies. The DJIA is not limited to traditionally defined industrial stocks, instead, the Index serves as a measure of the entire United States market, covering such diverse industries as financial services, technology, retail, entertainment and consumer goods. The Index is a price return index. The Fund's investment advisor is ProShare Advisors LLC.

Imaging Dynamics Company Ltd., a medical technology company, manufactures and sells medical imaging devices in the Americas and internationally. The company researches and develops digital radiography (DR) equipment, including medical charge coupled device (CCD) detectors, medical flat panel detectors, multifunction X-ray machines, and veterinary X-ray machines. It also offers imaging detectors; flat panel detectors under Aquarius 8600 and VetnovaXion names; Magellan, a medical image processing software; and Sirius, a veterinary image processing software. In addition, the company provides 1600 Plus X-Series, a DR solution with a floor mounted U-arm multi-axis positioning device that includes X-ray tube, collimator, and generator; and veterinary DR systems. It offers products through dealers, distributors, and original equipment manufacturer partners. The company was formerly known as Imaging Dynamics Corporation and changed its name to Imaging Dynamics Company Ltd. in October 2001. Imaging Dynamics Company Ltd. was incorporated in 1995 and is headquartered in Toronto, Canada.