RT Journal Article SR Electronic T1 Sector Allocation for ETFs JF ETFs and Indexing FD Institutional Investor Journals SP 105 OP 110 VO 2006 IS 1 A1 Robert W. Colby YR 2006 UL http://guides.pm-research.com/content/2006/1/105.abstract 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.