Morningstar's evaluation of this security's process aims to determine the likelihood that it will outperform its Morningstar Category index on a risk-adjusted basis over the long term.
The main driver of the rating is that this fund tracks an index. Historical data, like Morningstar's Active/Passive Barometer, finds that passively managed funds have generally outperformed their active counterparts, especially over longer time horizons.
The investment strategy as stated in the fund's prospectus is:
The investment seeks investment results that closely correspond, before fees and expenses, to the performance of the ICE 0-5 Year US Inflation-Linked Treasury Index. The fund seeks investment results that closely correspond, before fees and expenses, to the performance of the underlying index, which tracks the performance of U.S. dollar denominated sovereign debt publicly issued by the U.S. government in its domestic market with interest and principal payments tied to inflation, and with a remaining term to final maturity of less than or equal to five years. The fund will invest at least 80% of its assets in securities included in the underlying index.
This strategy has a 6.1% 12-month yield and a 30-day SEC yield (a standardized, point-in-time estimate of the fund’s future income return) of 2.7%. The holdings' average surveyed credit quality is AA and it does not hold any non-investment-grade assets. This fund carries an average effective duration of 2.5 years, so this fund is expected to gain 2.5% of its net asset value if interest rates drop by 1 percentage point, and vice versa.