The Fund seeks inflation protection and income primarily through investments in inflation-indexed debt securities issued by the U.S. Treasury Department and backed by the full faith and credit of the U.S. Government.

The Fund will only buy debt securities that are investment grade at the time of purchase. Investment grade securities include securities issued or guaranteed by the U.S. Government, its agencies and instrumentalities, as well as other securities rated in one of the four highest rating categories by at least two rating organizations rating the securities (such as Standard & Poor's Rating Services or Moody's Investors Service, Inc.) or rated in one of the four highest rating categories by one rating organization if it is the only organization rating that security. The sub-advisor may use derivative instruments, such as futures contracts, options, and swap agreements as hedge against interest rate or foreign currency fluctuations.

NISA Investment Advisors, LLC's investment process combines strategic (top-down) and tactical (bottom-up) analysis to determine a strategy whose goal is to outperform the Fund's benchmark.