Accountability ratings are determined by assessing whether a school or charter operator meets or exceeds target index scores. (txcharterschools.org)
An ETF portfolio manager (PM)'s number one goal is to track the performance of the fund's target index as closely as possible, after fees and expenses. (blackrockblog.com)
Indexes are affected and changed by asset flows into strategies which target those indexes. (investorfieldguide.com)