Daily Archives: January 15, 2016

Redefining indexes to reflect reality

The investment industry should be constantly looking at the impact of technology on the status quo. Just because indexes have been defined as cap-weighted portfolios, doesn’t mean that can’t change. In fact, the evolution in portfolio management necessitates a change in thinking with regard to the definition of indexes, in particular so risk management can be decoupled from alpha generation. In a new paper that argues for a new definition of what constitutes an index, Andrew Lo, professor of finance at MIT Sloan School of Management pushes the boundaries by not only suggesting change, but by demonstrating a new functional definition for indexes and the benefits, and pitfalls, of doing so.


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