PT - JOURNAL ARTICLE AU - Robert W. Colby TI - Sector Allocation for ETFs DP - 2006 Sep 21 TA - ETFs and Indexing PG - 105--110 VI - 2006 IP - 1 4099 - http://guides.pm-research.com/content/2006/1/105.short 4100 - http://guides.pm-research.com/content/2006/1/105.full AB - Sector allocation is a useful tool for constructing sound or superior reward/risk balanced portfolios. Exchange-traded funds (ETFs) might offer a convenient and relatively easy way to achieve sector allocation that can enhance alpha and limit risk. Past performance shows that overweighting or underweighting a small number of sectors can make large differences in performance.