Thursday, November 8, 2018

Rebalancing and Indexes

This rebalancing issue may explain why most active managers underperform: According to Hendrik Bessembinder, a finance professor at Arizona State University, the entire gain in the U.S. stock market since 1926 is attributable to the best-performing 4 percent of listed companies, and the cap-weighted indexes captured all of it because they don’t rebalance.



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