Manage your cash investments

^footnote*For the period July 1, 2018, through September 30, 2018, Vanguard Prime Money Market Fund Investor Shares outperformed 254 of 281 of its Lipper peer-group funds, Vanguard Federal Money Market Fund outperformed 566 of 580 of its Lipper peer-group funds, Vanguard Treasury Money Market Fund outperformed 571of 580 of its Lipper peer-group funds, Vanguard Municipal Money Market Fund outperformed 206 of 223 of its Lipper peer-group funds, Vanguard California Municipal Money Market Fund outperformed 177 of 223 of its Lipper peer-group funds, Vanguard New Jersey Municipal Money Market Fund outperformed 200 of 223 of its Lipper peer-group funds, Vanguard New York Municipal Money Market Fund outperformed 203 of 223 of its Lipper peer-group funds, and Vanguard Pennsylvania Municipal Money Market Fund outperformed 195 of 223 of its Lipper peer-group funds. Yield comparison results will vary for other time periods. Sources: Vanguard and Lipper, a Thomson Reuters Company. Note that the competitive performance data shown represent past performance, which is not a guarantee of future results, and that all investments are subject to risks. Investment returns and principal value will fluctuate, so 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. For the most recent performance, visit vanguard.com/performance.

^footnote**All averages are asset-weighted. Industry averages exclude Vanguard. Sources: Vanguard and Morningstar, Inc., as of December 31, 2017.

^footnote†The fund is only available to retail investors (natural persons). You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1 per share, it cannot guarantee it will do so. The fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund's sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

^{footnote††}You could lose money by investing in the fund. Although the fund seeks to preserve the value of your investment at $1 per share, it cannot guarantee it will do so. An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund's sponsor has no legal obligation to provide financial support to the fund, and you should not expect that the sponsor will provide financial support to the fund at any time.

Bank deposits and CDs are guaranteed (within limits) as to principal and interest by an agency of the federal government.

All investing is subject to risk, including the possible loss of the money you invest.

All brokered CDs may fluctuate in value between purchase date and maturity date. CDs may be sold on the secondary market, which may be limited, prior to maturity subject to market conditions. Any CD sold prior to maturity may be subject to a substantial gain or loss. Vanguard Brokerage does not make a market in brokered CDs. The original face amount of the purchase is not guaranteed if the position is sold prior to maturity. CDs are subject to availability. As of July 21, 2010, all CDs are federally insured up to $250,000 per depositor, per bank. In determining the applicable insurance limits, the FDIC aggregates accounts held at the issuer, including those held through different broker-dealers or other intermediaries. For additional details regarding coverage eligibility, visit fdic.gov External site. Vanguard Brokerage imposes a $10,000 minimum for CDs purchased through Vanguard Brokerage. Yields are calculated as simple interest, not compounded. Brokered CDs do not need to be held to maturity, charge no penalties for redemption, and have limited liquidity in a secondary market. If a CD has a step-rate, the interest rate of the CD may be higher or lower than prevailing market rates. Step-rate CDs are subject to secondary-market risk and often will include a call provision by the issuer that would subject the investor to reinvestment risk. The initial rate of a step-rate CD cannot be used to calculate the yield to maturity. If a CD has a call provision, the issuer has sole discretion whether to call the CD. If an issuer calls a CD, there is a risk to the investor that the investor will be forced to reinvest at a less favorable interest rate. Vanguard Brokerage makes no judgment as to the creditworthiness of the issuing institution and does not recommend or endorse CDs in any way.