Are your expensive active mutual funds and ETFs actually active? Or, as is too often the case, are they only pretending to be active? Do they charge a high active fee but then behave more like an index fund? If so, you are the victim of closet indexing. Andrew Slimmon, Managing Director at Morgan...

 Bloomberg Radio host Barry Ritholtz speaks to Samara Cohen, senior managing director at BlackRock Inc. and chief investment officer of the firm's ETF & Index Investments. She is also a member of BlackRock's Global Executive Committee and its investment and talent subcommittees. Cohen is also...