Strategy. To pursue its objective, under normal circumstances, the Fund invests primarily in debt obligations such as bonds, notes and debentures, and bills issued by U.S. corporations or by the U.S. government, its agencies or instrumentalities, municipal securities, mortgage -backed securities, asset -backed securities, and collateralized mortgage obligations and fixed income ETFs. Such debt obligations are investment grade, rated within the four highest ratings categories assigned by a nationally recognized statistical ratings organization or, if not rated, found by the Adviser under guidelines approved by the Trusts Board of Trustees to be of comparable quality. The Fund also invests in money market instruments. If the rating of a security is downgraded after purchase, the portfolio management team will determine whether it … Show more… To pursue its objective, under normal circumstances, the Fund invests primarily in debt obligations such as bonds, notes and debentures, and bills issued by U.S. corporations or by the U.S. government, its agencies or instrumentalities, municipal securities, mortgage -backed securities, asset -backed securities, and collateralized mortgage obligations and fixed income ETFs. Such debt obligations are investment grade, rated within the four highest ratings categories assigned by a nationally recognized statistical ratings organization or, if not rated, found by the Adviser under guidelines approved by the Trusts Board of Trustees to be of comparable quality. The Fund also invests in money market instruments. If the rating of a security is downgraded after purchase, the portfolio management team will determine whether it is in the best interest of the Funds shareholders to continue to hold the security. In making that determination, the factors considered at the time of purchase are reviewed. The Fund does not apply an automatic sale trigger. In managing the portfolio, the portfolio management team searches for inefficiencies not only at the macro, or top down level, but also at the individual security level. Purchase and sale decisions are based on the Advisers judgment about issuers, risk, prices of securities, market conditions, potential returns, and other economic factors. Under normal circumstances, the Fund invests at least 80% of its net assets in bonds and maintains an average portfolio duration of less than three and one -half years. These policies will not be changed without at least 60 days prior notice to shareholders. In addition, the Fund normally invests at least 65% of its net assets in interest -bearing bonds. Duration provides a measure of a funds sensitivity to changes in interest -rates . In general, the longer a funds duration, the more its price will fluctuate when interest rates change. A fund with a duration of 10 years is twice as sensitive to interest rate changes as a fund with a five -year duration. A fund with a five -year duration would generally be expected to lose 5% from its net asset value if interest rates rose by one percentage point or gain 5% if interest rates fell by one percentage point. Show less