LQIG tracks an index that invests in USD denominated, investment grade corporate bonds. To be eligible for inclusion in the index, bonds must have $300 million or more of par amount outstanding, have a remaining maturity of at least 2 years, and have a fixed rate or zero percent coupon. The fund utilizes MarketAxess proprietary technologies to determine eligibility. The firms Composite+ pricing engine, which determines availability of bid and price valuations and Relative Liquidity Score rates a bonds liquidity relative to bonds with similar risk and return characteristics. This filters the universe to only those with greater levels of liquidity. Once filtered, the bonds are ranked by par value face amount from highest to lowest, and the top 400 bonds are selected and market value-weighted. Single issuers are capped at 4%. The Index is rebalanced and reconstituted monthly.