Principal Inflation Protection Fund R-1 Class NMFQS:PISPX

The fund invests primarily in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and U.S. and non-U.S. corporations. Under normal circumstances, the fund maintains an average portfolio duration that is within ±20% of the duration of the Bloomberg U.S. Treasury Inflation Protected Securities (“TIPS”) Index. The fund is not managed to a particular maturity.