Bond values fluctuate in response to the financial condition of individual issuers, general market and economic conditions, and changes in interest rates. Changes in market conditions and government policies may lead to periods of heightened volatility in the bond market and reduced liquidity for certain bonds held by the fund. In general, when interest rates rise, bond values fall and investors may lose principal value. Interest-rate changes and their impact on the fund and its share price can be sudden and unpredictable. Loans are subject to risks similar to those associated with other below-investment-grade bond investments, such as credit risk (for example, risk of issuer default), below-investment-grade bond risk (for example, risk of greater volatility in value), and risk that the loan may become illiquid or difficult to price. The use of derivatives may reduce returns and/or increase volatility. Foreign investments are especially volatile and can rise or fall dramatically due to differences in the political and economic conditions of the host country. These risks are generally intensified in emerging markets. Certain investment strategies tend to increase the total risk of an investment (relative to the broader market). This fund is exposed to high-yield securities risk and mortgage- and asset-backed securities risk. Consult the fund's prospectus for additional information on these and other risks.

  
The Morningstar Rating™ for funds, or star rating, is calculated for managed products (including mutual funds, variable annuity and variable life subaccounts, exchange-traded funds, closed-end funds, and separate accounts) with at least a three-year history. Exchange-traded funds and open-ended mutual funds are considered a single population for comparative purposes. It is calculated based on a Morningstar risk-adjusted return measure that accounts for variation in a managed product’s monthly excess performance, placing more emphasis on downward variations and rewarding consistent performance. The Morningstar Rating does not include any adjustment for sales loads. The top 10% of products in each product category receive 5 stars, the next 22.5% receive 4 stars, the next 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a managed product is derived from a weighted average of the performance figures associated with its 3-, 5-, and 10-year (if applicable) Morningstar Rating metrics. The weights are: 100% 3-year rating for 36–59 months of total returns, 60% 5-year rating/40% 3-year rating for 60–119 months of total returns, and 50% 10-year rating/30% 5-year rating/20% 3-year rating for 120 or more months of total returns. While the 10-year overall star rating formula seems to give the most weight to the 10-year period, the most recent 3-year period actually has the greatest impact because it is included in all three rating periods. Past performance is no guarantee of future results.

Some of Morningstar’s proprietary calculations, including the Morningstar Rating™, are not customarily calculated based on adjusted historical returns. However, for new share classes/channels, Morningstar may calculate an extended-performance Morningstar Rating. The extended performance is calculated by adjusting the historical total returns of the oldest share class of a fund to reflect the fee structure of the younger share class/channel, attaching this data to the younger share class’s performance record, and then compounding the adjusted plus actual monthly returns into the extended-performance Morningstar risk-adjusted return for the 3-, 5-, and 10-year time periods. The Morningstar risk-adjusted returns are used to determine the extended-performance Morningstar Rating. The extended-performance Morningstar Rating for this fund does not affect the retail fund data published by Morningstar, as the bell curve distribution on which the ratings are based includes only funds with actual returns. The Overall Morningstar Rating for multi-share funds is based on actual performance only or extended performance only. Once the share class turns three years old, the Overall Morningstar Rating will be based on actual ratings only. The Overall Morningstar Rating for multi-share variable annuities is based on a weighted average of any ratings that are available.

While the inclusion of pre-inception data in the form of extended performance can provide valuable insight into the probable long-term behavior of newer share classes of a fund, investors should be aware that an adjusted historical return can provide only an approximation of that behavior. For example, the fee structures of a retail share class will vary from that of an institutional share class, as retail shares tend to have higher operating expenses and sales charges. These adjusted historical returns are not actual returns. The underlying investments in the share classes used to calculate the pre-performance string likely will vary from the underlying investments held in the fund after inception. Calculation methodologies used by Morningstar may differ from those applied by other entities, including the fund itself.

© 2024 Morningstar. All rights reserved. The information contained herein is proprietary to Morningstar and/or its content providers; may not be copied or distributed; and is not warranted to be accurate, complete, or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information. Past performance is no guarantee of future results.

Performance for the fund or the class shown may reflect a predecessor fund's or class' performance and may be adjusted to reflect the fund's or class' expenses as applicable.