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VMSXX Vanguard Municipal Money Market Fund

Management style

Active

Asset class

Money Market

Category

Muni National Money Market

Risk / reward scale

Start of Risk Scale. On a scale of 1 to 5, 1 is less risk less reward, 5 is more risk more reward
The fund risk level is a 1

Less

More

End of Risk Scale.

Expense ratio

0.11%

as of 02/28/2025

as of 05/20/2025

Investment minimum

$3,000

as of 05/20/2025

NAV price

$1.00

as of 05/20/2025

Overview

Key facts

CUSIP

922907506

Management style

Active

Asset class

Money Market

Category

Muni National Money Market

Product type

Retail

Inception date

06/10/1980

Fund Number

0045

Ratings

Risk / reward scale

Start of Risk Scale. On a scale of 1 to 5, 1 is less risk less reward, 5 is more risk more reward
The fund risk level is a 1

Less

More

End of Risk Scale.
Price

Minimum Investment

$3,000

NAV Price

$1.00

as of 05/20/2025

NAV change

$0.00 (0.00%)

as of 05/20/2025

Expense Ratio

0.11%

as of 02/28/2025

Daily market value

$1.0001

as of 05/20/2025

Performance

YTD returns

1.06%

as of 05/20/2025

Compound yield

3.14%

as of 05/20/2025

Product summary

Vanguard Municipal Money Market Fund’s investment objective is to seek to provide current income that is exempt from federal personal income taxes while maintaining liquidity and a stable share price of $1. As such it is considered one of the most conservative investment options offered by Vanguard. Although the fund invests in short-term, high-quality securities, the amount of income that a shareholder may receive will be largely dependent on the current interest rate environment and the availability of eligible municipal securities. Investors in a higher tax bracket who have a short-term savings goal and seek a competitive tax-free yield may wish to consider this option.

Fund management

Vanguard Fixed Income Group

Performance & fees

Total returns
Month-end/Quarterly Pre-Tax Toggle

as of 04/30/2025

Recent returns

Average annual

Month-end3-Month totalYTD1-yr3-yr5-yr10-yr

Since inception

06/10/1980

VMSXX

0.29%0.73%0.92%3.11%2.83%1.72%1.28%2.74%

Benchmark

0.24%0.62%0.79%2.69%2.49%1.50%1.04%2.40%

as of 03/31/2025

Year1st Qtr2nd Qtr3rd Qtr4th QtrYear-end

Benchmark

20250.63%
20240.79%0.88%0.81%0.77%3.29% 2.89%
20230.68%0.78%0.85%0.89%3.25% 2.96%
20220.02%0.13%0.32%0.59%1.07% 0.85%
20210.00%0.00%0.00%0.01%0.02% 0.02%
20200.35%0.11%0.03%0.01%0.50% 0.34%
20190.37%0.40%0.33%0.29%1.40% 1.06%
20180.27%0.33%0.32%0.39%1.31% 0.99%
20170.14%0.18%0.18%0.23%0.74% 0.40%
20160.01%0.07%0.11%0.14%0.33% 0.12%
20150.00%0.00%0.00%0.00%0.01% 0.01%

as of 12/31/2024

Year

Capital return by NAV

Income return by NAV

Total return by NAV

Benchmark

20240.00% 3.29%3.29%2.89%
20230.00% 3.25%3.25%2.96%
20220.00% 1.06%1.07%0.85%
20210.01% 0.01%0.02%0.02%
20200.00% 0.50%0.50%0.34%
20190.00% 1.40%1.40%1.06%
20180.00% 1.31%1.31%0.99%
20170.00% 0.74%0.74%0.40%
20160.00% 0.33%0.33%0.12%
20150.00% 0.01%0.01%0.01%
20140.00% 0.01%0.01%0.01%
20130.00% 0.01%0.01%0.01%
20120.00% 0.04%0.04%0.00%
20110.00% 0.06%0.06%0.00%
20100.00% 0.14%0.14%0.00%

as of 04/30/2025

1-yr3-yr5-yr10-yr

Since inception

06/10/1980

VMSXX3.11% 8.72%8.88% 13.54% 236.64%

Benchmark

2.69%7.66%7.73%10.87%

Expense ratio

VMSXX

0.11%

Average expense ratio of similar funds2

Fund-specific fees

Purchase fee

None

Fund family redemption fee

None

The performance data shown represent past performance, which is not a guarantee of future results. Investment returns and principal value will fluctuate so that investors' shares, when sold, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data cited.

Performance data do not reflect the deduction of the $25 annual account service fee that may be applied to certain accounts. If this fee was included, performance would be lower.

Price

Closing price

Closing price as of 05/20/2025

NAV

$1.00

NAV change

$0.00 (0.00%)

52-week High

$1.00

as of 05/20/2025

52-week Low

$1.00

as of 05/20/2025

52-week Difference

$0.00 (0.00%)

7 day SEC yield

3.10%

 

C SEC yield footnote code

 

as of 05/20/2025

Daily market value

$1.0001

as of 05/20/2025

Historical prices

Price history does not apply to money market funds because they historically have maintained a stable price of $1 per share.

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Portfolio composition

Characteristics

as of 04/30/2025

FundamentalVMSXX
Benchmark
Number of holdings 986
Average maturity 13.0 days
Weighted average life 15.0 days
Alternative minimum tax (AMT)* 17.6%
Fund total net assets as of 04/30/2025 $19.0 B
Weighted exposures

as of 04/30/2025

100.00%Tax Exempt Securities
Issuer% of fundTax Exempt Securities 100.00%

Weighted equity exposures exclude any temporary cash investments and equity index futures. Some short-term fixed income securities are classified as cash and are excluded from the weighted bond exposures.

Holding details

Visit sec.gov opens a new window to obtain the most recent 12 months of publicly available information filed by the fund with the SEC on Form N-MFP

Liquidity assets

for the past 6 months

        
Date Daily liquid assets Weekly liquid assets Daily market value Daily net shareholder cash flow
05/19/20250.00%88.88%$1.0001$322,138.15
05/16/20250.00%89.03%$1.0001-$36,284,385.11
05/15/20250.00%88.99%$1.0001-$71,248,665.70
05/14/20250.00%88.97%$1.0001-$83,853,072.79
05/13/20250.00%89.16%$1.0000-$137,428,524.29
05/12/20250.00%89.10%$1.0001-$106,886,905.37
05/09/20250.00%89.14%$1.0001-$126,447,514.24
05/08/20250.00%89.58%$1.0001-$75,323,824.70
05/07/20250.00%89.15%$1.0001-$27,081,788.93
05/06/20250.00%89.78%$1.0001-$60,486,616.90

Distributions

Realized/Unrealized gains

as of 04/30/2025

Realized gain

$0.00

% of NAV

0.00%

Unrealized gains of NAV

$0.00

% of NAV

0.00%

Fiscal year end

10/31/2025

Distribution schedule

Monthly - Accruing Daily

How your fund can affect your taxes

A fund's capital gains and losses can reveal the tax implications of holding a particular fund in a taxable account. This is true of both realized and unrealized capital gains and losses.

These tax implications don't apply to investors holding a fund in a tax-deferred account, such as an IRA or employer-sponsored retirement plan.

Learn about realized and unrealized gains and losses

How your fund can affect your taxes

A fund's capital gains and losses can reveal the tax implications of holding a particular fund in a taxable account. This is true of both realized and unrealized capital gains and losses.

These tax implications don't apply to investors holding a fund in a tax-deferred account, such as an IRA or employer-sponsored retirement plan.

Learn about realized and unrealized gains and losses
Dividend income and capital gains
Type$/Share Payable date Record date Reinvest date Reinvest price Distribution yield
Dividend$0.00292105/01/202504/30/202504/30/2025$1.003.55%
Dividend$0.00240704/01/202503/31/202503/31/2025$1.002.83%
Dividend$0.00192803/03/202502/28/202502/28/2025$1.002.51%
Dividend$0.00194602/03/202501/31/202501/31/2025$1.002.29%
Dividend$0.00249901/02/202512/31/202412/31/2024$1.002.95%
Dividend$0.00245712/02/202411/29/202411/29/2024$1.003.00%
Dividend$0.00276511/01/202410/31/202410/31/2024$1.003.26%
Dividend$0.00272710/01/202409/30/202409/30/2024$1.003.33%
Dividend$0.00279109/03/202408/30/202408/30/2024$1.003.30%
Dividend$0.00251208/01/202407/31/202407/31/2024$1.002.97%

Fund management

Vanguard Municipal Money Market Fund seeks current income exempt from federal tax by investing in a variety of high-quality, short-term municipal securities. The fund seeks to maintain a constant $1 per share net asset value (NAV) and a dollar-weighted average maturity of 60 days or less, and a dollar-weighted average life of 120 days or less. The advisor, Vanguard Fixed Income Group, seeks to add value by making small adjustments to the fund’s maturity structure based on factors such as interest-rate outlook and slope of the yield curve. Vanguard’s independent research capabilities assist in identifying specific issues and market sectors that represent good relative value.

Vanguard Fixed Income Group
Launched in 1975, The Vanguard Group, Malvern, Pennsylvania, is among the world’s largest equity and fixed income managers. As chief investment officer, Gregory Davis, CFA, oversees Vanguard’s Equity Index, Investment Strategy, Quantitative Equity, and Fixed Income Groups. Sara Devereux, principal and global head of Fixed Income Group, has direct oversight responsibility for all money market, bond, and stable value portfolios managed by the Fixed Income Group. The Fixed Income Group offers actively managed investments in U.S. Treasury, corporate, and tax-exempt securities, as well as passively managed index portfolios. Since 1981, it has refined techniques in total-return management, credit research, and index sampling to seek to deliver consistent performance with transparency and risk control. The group has advised Vanguard Municipal Money Market Fund since 1981.
Justin A. Schwartz
CFA, Head of Municipal Index and Money Markets Portfolio manager.
Advised the fund since 2016. Worked in investment management since 2004. B.S., University of Richmond.
John P. Grimes
CFA, Portfolio manager.
Advised the fund since 2023. Worked in investment management since 2008. B.A., Marquette University. M.B.A., Saint Joseph's University.

Performance & fees

1
Derived from data provided by Lipper, a Thomson Reuters Company.
2

Most recent data available. © 2023 Morningstar, Inc. All rights reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; (3) does not constitute investment advice offered by Morningstar; and (4) 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.

Portfolio composition

3

Credit-quality ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). "NR" is used to classify securities for which a rating is not available. NR securities may include a fund's investment in Vanguard Market Liquidity Fund or Vanguard Municipal Low Duration Fund, each of which invests in high-quality money market instruments and may serve as a cash management vehicle for the Vanguard funds, trusts, and accounts. U.S. Treasury, U.S. Agency, and U.S. Agency mortgage-backed securities appear under "U.S. Government." The Distribution by Credit Quality table includes tier ratings for consistency with SEC Rule 2a-7 under the Investment Company Act of 1940, which governs money market funds. A First Tier security is one that is eligible for money market funds and has been rated in the highest short-term rating category for debt obligations by the requisite nationally recognized statistical rating organizations. An unrated security is First Tier if it represents quality comparable to that of a rated security, as determined in accordance with SEC Rule 2a-7. A Second Tier security is one that is eligible for money market funds and is not a First Tier security.

4

Alternative minimum tax (AMT) percentage represents the fund's income subject to the AMT as of the date indicated.

© 2023 Morningstar, Inc. All Rights Reserved. The information contained herein: (1) is proprietary to Morningstar; (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. Past performance is no guarantee of future results.

Vanguard average mutual fund expense ratio: 0.09%. Industry average mutual fund expense ratio: 0.50%. All averages are asset-weighted. Industry average excludes Vanguard. Sources: Vanguard and Morningstar, Inc., as of December 31, 2023.

Vanguard Cash Reserves Federal Money Market Fund and Vanguard Federal Money Market Fund: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor is not required to reimburse the Fund for losses, and you should not expect that the sponsor will provide financial support to the Fund at any time, including during periods of market stress.

Total returns: Short-term total return information is provided only as a service. Historical performance—particularly short-term performance—is no guarantee of future returns. Price, yield, and return on an actual investment will fluctuate, and you may have a gain or loss when you sell. Average annual returns include changes in price and reinvestments of dividends and capital gains. Since-inception returns for less than 1 year and year-to-date returns aren't annualized. Index performance is provided as a benchmark but isn't illustrative of any particular investment. You can't invest in an index.

Standardized returns: To see quarterly fee-adjusted returns, refer to the Price & Performance details.

Expense ratios: Expense ratios are displayed on Overview. For investments that are less than 1 fiscal year old, expense ratios are estimated.

Risk: All investing is subject to risk, including the possible loss of the money you invest. Funds that concentrate on a relatively narrow market sector face the risk of higher share-price volatility. Investments in stocks or bonds issued by non-U.S. companies are subject to risks including country/regional risk and currency risk.

The fund is designed for investors with a low tolerance for risk; however, the fund is subject to the following risks, which could affect the fund’s performance:

  • Income risk, which is the chance that the fund’s income will decline because of falling interest rates. Because the fund’s income is based on short-term interest rates—which can fluctuate significantly over short periods—income risk is expected to be high. A low or negative interest rate environment will adversely affect the fund’s return. Low or negative interest rates, depending on their duration and severity, could prevent the fund from, among other things, providing a positive yield and/or maintaining a stable share price of $1.
  • Liquidity risk, which is the chance that the fund may not be able to sell a security, including restricted securities, in a timely manner at a desired price.
  • Credit risk, which is the chance that the issuer of a security will fail to pay interest or principal in a timely manner or that negative perceptions of the issuer’s ability to make such payments will cause the price of that security to decline. Credit risk should be low for the fund because it invests primarily in securities that are considered to be of high quality.
  • Manager risk, which is the chance that poor security selection will cause the fund to underperform relevant benchmarks or other funds with a similar investment objective.
  • Tax risk, which is the chance that all or a portion of the tax-exempt income from municipal bonds held by the fund will be declared taxable, possibly with retroactive effect, because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state or local tax authorities, or noncompliant conduct of a bond issuer.
  • Structured products risk. The fund may invest in structured products such as tender option bonds and long-term municipal securities combined with a demand feature (e.g., variable rate demand notes or VRDNs), which may involve risks different from, and possibly greater than, those of investments directly in the underlying securities or assets.
  • Regional risk, which is the chance that economic, political, or regulatory occurrences within a certain state may adversely affect the value of securities offered by issuers located within that state. Because the fund may invest a large portion of its assets in securities located in any one state, the fund’s performance may be hurt disproportionately by the poor performance of its investments in that area.