P&I examines how investment managers and hedge funds are using ETFs for portfolio management.
Managers using competitors' funds for portfolio management
But they rank as 3rd largest institutional users of ETFs, ETPs
The growing world of exchange-traded funds is coming under increasing scrutiny of U.S. authorities
Market share by issuer as of Jan. 31, 2012
Top 5 ETF holdings, in millions, as of Dec. 31, 2011
Number of shares held by hedge fund managers as of Dec. 31, 2011
Top 5 net long and short ETF positions by hedge funds as of Dec. 31, 2011