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American Tower, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of over 224,000 communications sites and a highly interconnected footprint of U.S. data center facilities.

Allianz SE, together with its subsidiaries, provides property-casualty insurance, life/health insurance, and asset management products and services worldwide. The company's Property-Casualty segment offers various insurance products, including motor liability and own damage, accident, general liability, fire and property, legal expense, credit, and travel insurance products to private and corporate customers. Its Life/Health segment provides a range of life and health insurance products on an individual and a group basis, such as annuities, endowment and term insurance, and unit-linked and investment-oriented products, as well as private health, supplemental health, and long-term care insurance products. The company's Asset Management segment offers institutional and retail asset management products and services to third-party investors comprising equity and fixed income funds, as well as alternative products; and investment management services. Its Corporate and Other segment provides various banking products for corporate and retail clients; and alternative investment management services in the private equity, real estate, renewable energy, and infrastructure sectors. Allianz SE was founded in 1890 and is headquartered in Munich, Germany.

Bank of China Limited, together with its subsidiaries, provides various banking and financial services in Chinese Mainland, Hong Kong, Macao, Taiwan, and internationally. It operates through Corporate Banking, Personal Banking, Treasury Operations, Investment Banking, Insurance, and Other segments. The Corporate Banking segment provides current accounts, deposits, overdrafts, loans, payments and settlements, trade-related products, and other credit facilities, as well as foreign currency, derivative, and wealth management products for corporate customers, government authorities, and financial institutions. The Personal Banking segment offers savings deposits, personal loans, credit cards and debit cards, payments and settlements, wealth management, and funds and insurance agency services to retail customers. The Treasury Operations segment offers foreign exchange transactions, customer-based interest rate, and foreign exchange derivative transactions, as well as money market transactions, proprietary trading, and asset and liability management. The Investment Banking segment provides debt and equity underwriting and financial advisory, sale and trading of securities, stock brokerage, investment research, asset management services, and private equity investment services. The Insurance segment provides underwriting services for general and life insurance business, and insurance agency services. In addition, the company operates debt-to-equity swaps and other supporting, and aircraft and financial leasing business. The company was founded in 1912 and is headquartered in Beijing, China.

Citigroup Inc., a diversified financial service holding company, provides various financial product and services to consumers, corporations, governments, and institutions worldwide. It operates through five segments: Services, Markets, Banking, U.S. Personal Banking, and Wealth. The Services segment includes Treasury and Trade Solutions, which provides cash management, trade, and working capital solutions to multinational corporations, financial institutions, and public sector organizations; and Securities Services, such as cross-border support for clients, local market expertise, post-trade technologies, data solutions, and various securities services solutions. The Markets segment offers sales and trading services for equities, foreign exchange, rates, spread products, and commodities to corporate, institutional, and public sector clients; and market-making services, including asset classes, risk management solutions, financing, prime brokerage, research, securities clearing, and settlement. The banking segment includes investment banking; advisory services related to mergers and acquisitions, divestitures, restructurings, and corporate defense activities; and corporate lending, which includes corporate and commercial banking. The U.S. Personal Banking segment provides co-branded cards and retail banking services. The Wealth segment provides financial services to high-net-worth clients through banking, lending, mortgages, investment, custody, and trust product offerings; and to professional industries, including law firms, consulting groups, accounting, and asset management. The company was founded in 1812 and is headquartered in New York, New York.

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.