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    • Overview

    Objective

    The Fund seeks to match the performance of the Bloomberg U.S. Aggregate Bond Index as closely as possible before the deduction of Fund expenses.

    Low-cost design: Offers efficiency and low cost.

    Key features

    • Passive strategy: Invests in bonds and other fixed-income securities that are included in or correlated with the Bloomberg U.S. Aggregate Bond Index
    • Low-cost design: Utilizes a low-turnover passive management approach to help lower costs
    • Fixed-income expertise: Provides access to a team of highly seasoned fixed-income investment professionals

    Fund documentation

    • Fact sheet (PDF): Share classes A, IS, and/or R6

    Additional resources

    Visit the site where the prospectus, reports, and other regulatory documents are located.

    Strategy overview

    The Nationwide Bond Index Fund employs a “passive” management, or indexing, approach, which seeks to match approximately the performance of the Bloomberg U.S. Aggregate Bond Index (“Aggregate Bond Index”) before the deduction of Fund expenses. The Aggregate Bond Index represents a wide spectrum of public, investment-grade, fixed-income securities in the United States, including government, corporate, and international dollar-denominated bonds, as well as mortgage-backed securities. Some of these securities may be purchased with delayed delivery.

    Fund management

    Portfolio management

    BlackRock Investment Management, LLC logo

    BlackRock Investment Management, LLC

    BlackRock Investment Management, LLC, is a global firm that combines the benefits of worldwide reach with local service and relationships. BlackRock's assets under management exceed $10 trillion across equity, fixed-income, cash management, alternative investment, real estate and advisory strategies. BlackRock focuses on long-term sustainability.

    Founded: 1988

    Location: New York, NY (U.S. office)

    Assets Under Management (AUM): $15.3 Trillion (as of 6/30/2026)

    Management team

    James Mauro photo

    James Mauro

    Portfolio Manager

    Investing since: 1993
    Fund tenure since: 2021
    Education: MBA, Boston University; BS, Saint Michaels College
    Jonathan Graves photo

    Jonathan Graves

    Portfolio Manager

    Investing since: 2000
    Fund tenure since: 2025
    Education: MBA, University of California, Los Angeles; BS, California State University
    Marcus Tom photo

    Marcus Tom

    Portfolio Manager

    Investing since: 2000
    Fund tenure since: 2025
    Education: BA, University of California, Davis
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    Performance

    Average annual returns
    (as of )

    Important disclosure

    The results shown represent past performance; past performance does not guarantee future results. Current performance may be lower or higher than the past performance shown. Share price, principal value, and return will vary, and you may have a gain or a loss when you sell your shares. Current performance may be lower or higher than the performance data quoted.

    Performance returns assume the reinvestment of all distributions. Returns for periods less than one year are not annualized. Total returns reflect a contractual expense limitation for direct annual Fund expenses for all classes for certain periods since inception, without which returns would have been lower. Pre-inception historical performance for newer share classes is based on the corresponding share class performance of a Fund's predecessor fund. If no predecessor Fund applies, historical performance is based on that of the longest existing share class, adjusted for sales charges if applicable.

    Calendar year returns
    (as of )

    Growth of 10K
    (as of )

    Fees, expenses and minimums

    Important disclosure

    The expense ratios are as of the most recent prospectus. The difference between gross and net operating expenses reflects contractual fee waivers in place through March 2, 2027.

    The Nationwide Mutual Funds and NFA entered into a written contract limiting annual fund operating expenses to 0.22% until at least March 2, 2027. Under the agreement, the expense cap applies to all share classes (excluding 12b-1 fees). Please see the Fund's prospectus for more details.

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    Portfolio

    Asset allocation
    (as of )

    Percentage of net assets. The net exposures are a combination of potential long and short exposures of derivatives, such as futures and forward foreign currency contracts.

    Top 10 holdings
    GBIAX (as of )

    Holding nameWeight (%)
    No holdings data available.

    Holdings are provided for informational purposes and should not be deemed as a recommendation to buy or sell the securities.

    Sector allocations
    (as of )

    Percentage of net assets. The net exposures are a combination of potential long and short exposures of derivatives, such as futures and forward foreign currency contracts. Percentages may not total 100.00 due to rounding.

    For additional sector breakdown, see fact sheets in "Fund documentation" above.

    Portfolio characteristics
    (as of )

    * Portfolio Characteristics are calculated based on the Fund’s Morningstar Category Index using a rolling 3-year time period. If Inception Date of the share class is less than 3 years ago, Characteristic is not available.

    Style details
    (as of )

    Important disclosure

    The Morningstar Style Box is a nine-square grid that provides a graphical representation of the "investment style" of mutual funds as of the date noted above. For funds with underlying fixed-income holdings, those holdings are used to measure credit quality on the Fixed-Income Style Box's vertical axis in three categories (High, Medium, Low) and interest rate sensitivity on the horizontal axis in three categories (Limited, Moderate, Extensive). A darkened square in the Style Box indicates the weighted average style of the portfolio.

    Credit quality
    GBIAX (as of )

    Credit qualityHoldings (%)

    Important disclosure

    Credit Quality specifies the percentages of the Fund's underlying holdings that are rated by Standard & Poor's Ratings Services (Standard & Poor's) to indicate the issuer's creditworthiness.

    Standard & Poor's bond credit ratings typically range from AAA (highest) to D (lowest). These ratings are not absolute standards of quality and do not provide assurance against default or other loss of principal value. Securities that are not rated by either agency are listed as "Not Rated." Ratings do not apply to the Fund itself or to Fund shares. Ratings may change.

    Rankings and ratings
    (as of )

    Fund risks

    The Fund seeks to match the performance of an index. Correlation between Fund performance and index performance may be affected by Fund expenses, index composition changes, and the timing of Fund share purchases and redemptions. The Fund is subject to the risks of investing in fixed-income securities (including high-yield bonds), and including default risk and interest-rate risk. Funds that invest in high-yield securities are subject to greater default risk, liquidity risk, and price fluctuations than funds that invest in higher-quality securities. The prices of high-yield bonds tend to be more sensitive to adverse economic and business conditions than are higher-rated corporate bonds. Increased volatility may reduce the market value of high-yield bonds. They are also subject to the claims-paying ability of the issuing company. The Fund also is subject to the risks of investing in foreign securities (which are volatile, harder to price and less liquid than U.S. securities). The Fund may become non-diversified as a result of a change in relative market capitalization or index weighting of one or more constituents in the Bloomberg US Aggregate Bond Index, the Index the Fund is seeking to match. Please refer to the most recent prospectus for a more detailed explanation of the Fund's principal risks.

    Distributions

    Distribution information

    Access important year-end information shareholders will need to prepare taxes.

    [1] Bloomberg US Aggregate Bond Index: An unmanaged, market value-weighted index of U.S. dollar-denominated, investment-grade, fixed-rate, taxable debt issues, which includes Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate and hybrid adjustable-rate mortgage pass-throughs), asset-backed securities and commercial mortgage-backed securities (agency and non-agency). Bloomberg® and its indexes are service marks of Bloomberg Finance L.P. and its affiliates including Bloomberg Index Services Limited, the administrator of the index, and have been licensed for use for certain purposes by Nationwide. Bloomberg is not affiliated with Nationwide, and Bloomberg does not approve, endorse, review or recommend this product. Bloomberg does not guarantee the timeliness, accurateness, or completeness of any date or information relating to this product.

    iShares® is a registered trademark of BlackRock, Inc. or its subsidiaries ("BlackRock"). Neither BlackRock nor the iShares® Funds make any representations regarding the advisability of investing in this Fund.

    Need more information?
    We’re here to help you meet your clients’ needs. 
    Mutual fund service: 1-800-848-0920
    Retail mutual fund sales: 1-877-245-0761
    Connect with a Nationwide Funds wholesaler or key accounts representative

    Read this important information

    Performance represents average annual total returns, assumes the reinvestment of all distributions and reflects applicable sales charges. Total returns reflect a waiver of part of each Fund's fees for certain periods since inception, without which returns would have been lower. Average annual total returns illustrate the annual compounded returns that would have produced the cumulative total return if each Fund's performance had remained constant throughout the period indicated. Returns for periods less than one year are not annualized.

    Additional disclosures

    Returns prior to the first offering of a specific share class of a Fund are based on the previous performance of other share classes of that Fund as noted below. This performance is substantially similar to what the specific share class would have produced because all share classes of a Fund invest in the same portfolio of securities. Performance assumes the reinvestment of all dividends and distributions. Performance has not been adjusted to reflect differences in applicable sales charges for individual classes, which if reflected may have resulted in higher or lower performance for the specific share class. Performance has been adjusted to reflect different expense levels for individual classes.

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    Morningstar Ratings disclosure

    Morningstar Ratings reflect risk-adjusted performance. The Morningstar RatingTM is derived from a weighted average of the performance figures associated with the Fund's 3-, 5- and 10-year (if applicable) periods.

    Morningstar Ratings metrics: Morningstar Ratings are based solely on a proprietary mathematical formula based on measures of risk and performance that it recalculates each month. The ratings formula measures the amount of variation in a fund's monthly performance (excluding the effects of sales charges and loads) emphasizing downward variations and rewarding consistency. Ratings are subject to change every month. The top 10% of funds in the category receive 5 stars; the next 22.5%, 4 stars; the next 35%, 3 stars; the next 22.5%, 2 stars; and the bottom 10%, 1 star.

    Ratings are based on specific class performance of each fund. Current fund performance may be higher or lower, which may change a fund's star rating. Despite high ratings, funds may have experienced negative performance during the period. Performance may reflect a waiver of part of a fund's fees for certain periods since inception, without which returns would have been lower. The Morningstar Rating does not include any adjustment for sales loads.

    © 2026 Morningstar. All Rights Reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) 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.