To pursue its goal, the fund generally invests in stocks that are included in the RAFI Fundamental High Liquidity Developed ex US Large Index. The index selects, ranks, and weights securities by fundamental measures of company size as adjusted sales, retained operating cash flow, and dividends plus buybacks rather than market capitalization. The index measures the performance of the large company size segment by fundamental overall company scores (scores), which are created using as the universe the developed ex U.S. companies in the RAFI Global Equity Investable Universe (the parent universe). Securities are grouped in order of decreasing score and each company receives a weight based on its percentage of the total scores of the developed ex U.S. companies within the parent universe. The index is comprised of the largest developed ex U.S. companies by fundamental size. The top 87.5 percent of the companies by cumulative fundamental score are included in the index. The companies included in the index, and their respective weights, are determined annually and are implemented using a partial quarterly reconstitution methodology in which the index is split into four equal segments and each segment is rebalanced on a rolling quarterly basis. The method of calculating the components of the index is subject to change.