IGCB is an actively managed fund that invests in a broad portfolio of USD and non-USD denominated corporate bonds of varying maturities, issued by US and foreign corporations, including those in developed market and emerging market countries. Although the fund does not target a specific duration, it will normally vary its duration from three to nine years. Also, while a majority of the fund's holdings will be investment grade, up to 20% may be invested in below investment grade bonds. In selecting the components of the fund, the adviser considers the potential performance of various market sectors, security selection available within a given sector, the risk/reward equation for different asset classes, liquidity conditions, the shape of the yield curve and projections for changes in the yield curve, fluctuations of interest rates, and current monetary and fiscal policy. IGCB began as the TCW MetWest Corporate Bond Fund, with $5 million in assets before converting to an ETF.