Declining Active Risk in Japanese Equity Portfolios
Jun 1, 2005
Since the collapse of the Internet bubble, many Japanese portfolio managers have observed a surprising contrast between trends in tracking error and market volatility: tracking errors have fallen dramatically for many portfolios, while the volatility of the TSE1 index has declined much more gradually. The decrease in tracking error is related to a phenomenon occurring in markets around the globe. The cross-sectional dispersion of asset returns within these markets is much smaller today than it was a few years ago. The low level of cross-sectional dispersion makes the art of active portfolio management more difficult than it was before. It demands a considered response from managers.