James Linneman

ProShare Advisors LLC (PSA) is an independent, SEC-registered investment advisor and ETF fund manager headquartered in Bethesda, Maryland. The firm was founded in 2006 by Michael Sapir and Louis Mayberg. PSA provides investment advisory and management services to the ProShares Trust, an open-end series management investment company. The firm also regularly develops customized solutions such as portfolio diversification strategies, risk management solutions, tactical portfolio alignment, exposure adjustments and liquidity management. Their clients include hedge funds, asset managers, consultants, pensions, foundations and endowments and insurance companies.

ProFund Advisors LLC is an independent, SEC-registered investment advisor and mutual fund manager headquartered in Bethesda, Maryland. The firm was founded by Louis Mayberg and Michael Sapir in 1997. They provide a diverse lineup of mutual funds that offer trading flexibility to all shareholders.