Strategy. The Large-Cap Index Fund employs a passive management approach, attempting to invest in a portfolio of assets whose performance is expected to match approximately the performance of the Russell 1000. The Fund will be substantially invested in equity securities in the Russell 1000, and will invest, under normal circumstances, at least 80% of its net assets in securities or other financial instruments that are components of or have economic characteristics similar to the securities included in the Russell 1000. Equity securities in which the Fund invests include common stock, preferred stock and securities or other instruments whose price is linked to the value of common stock. The Fund will invest in the common stocks represented in the Russell 1000 in … Show more… The Large-Cap Index Fund employs a passive management approach, attempting to invest in a portfolio of assets whose performance is expected to match approximately the performance of the Russell 1000. The Fund will be substantially invested in equity securities in the Russell 1000, and will invest, under normal circumstances, at least 80% of its net assets in securities or other financial instruments that are components of or have economic characteristics similar to the securities included in the Russell 1000. Equity securities in which the Fund invests include common stock, preferred stock and securities or other instruments whose price is linked to the value of common stock. The Fund will invest in the common stocks represented in the Russell 1000 in roughly the same proportions as their weightings in the Russell 1000. As of March 31, 2025, the companies in the Russell 1000 have a market capitalization ranging from $0.27 billion to $3.33 trillion. The Fund may also engage in futures transactions. At times, the Fund may not invest in all of the common stocks in the Russell 1000, or in the same weightings as in the Russell 1000. At those times, the Fund chooses investments so that the market capitalizations, industry weightings and other fundamental characteristics of the stocks chosen are similar to the Russell 1000 as a whole. The Fund may lend securities with a value up to 33 ?1 / 3 % of its total assets to financial institutions that provide cash or securities issued or guaranteed by the U.S. Government as collateral. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Russell 1000 is concentrated. The Fund is a feeder fund that invests all of its assets in the Master Portfolio, which has the same investment objective and strategies as the Fund. All investments are made at the Master Portfolio level. This structure is sometimes called a master/feeder structure. The Funds investment results will correspond directly to the investment results of the Master Portfolio. For simplicity, this prospectus uses the name of the Fund or the term Fund (as applicable) to include the Master Portfolio. Show less