Seeks high current income consistent with preservation of principal. Under normal market conditions, the portfolio will invest primarily in corporate bonds and U.S. Treasury bonds. The fund may invest in government obligations (including U.S., state, and local governments, their agencies and instrumentalities); mortgage- and asset-backed securities; corporate debt securities; repurchase agreements; and other securities believed to have debt-like characteristics. The fund also may allocate up to 20% of its assets to high-yield corporate bonds.