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Overview of Vanguard Cash Reserves Federal Money Market Fund

Reviewed by Marguerita Cheng
Fact checked by Suzanne Kvilhaug

What Is the Vanguard Cash Reserves Federal Market Fund (VMRXX)?

If you’re looking to invest in highly liquid investment vehicles that come with short-term maturities, consider a money market fund. These mutual funds typically invest in cash, highly-rated debt securities, and cash equivalents. These funds were originally designed to offer liquidity, provide current income, and preserve an investor’s principal by maintaining a fixed $1.00 share price.

Funds may face redemption restrictions and liquidity fees during times of financial duress, which makes the Vanguard Cash Reserves Federal Money Market Fund (VMMRX) a great choice for some investors. Read on to find out more about this fund and whether it’s a good fit for your portfolio.

Key Takeaways

  • The Vanguard Cash Reserves Federal Money Market Fund (VMRXX) is a taxable, conservative investment option designed for the retail investor.
  • The fund is primarily invested in highly liquid securities with short-term maturities like U.S. Treasury bills and cash.
  • VMRXX is a conservative option for investors who need immediate access to cash or for long-term investors who want to offset riskier investments.

Understanding the Vanguard Cash Reserves Federal Money Market Fund

The Vanguard Cash Reserves Federal Money Market Fund Investor Shares (VMRXX) is a conservative investment option offered by The Vanguard Group—one of the world’s largest equity and fixed income managers. The fund is taxable and is designed specifically for the retail investor.

Launched in 1989 and holds total assets of $120.1 billion as of Dec. 11, 2024. The portfolio contains 252 securities. The minimum investment is $3,000, and any additional investment after that is priced at $1 per share. The expense ratio is 0.10%, and there are no purchase or redemption fees. The fund is primarily invested in the following:

  • Repurchase Agreements: 25.70%
  • U.S Treasury Bills: 36.50%
  • U.S. Government Obligations: 37.80%

The yields of money market mutual funds are largely dependent on the interest rate environment, meaning their yields will likely rise as interest rates rise. So when interest rates rise, money market mutual funds like Vanguard’s Cash Reserves Federal Money Market Fund become more attractive to investors.

Like all mutual fund money market funds, VMRXX is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC). Investors concerned about the lack of insurance may wish to consider a money market fund account offered by a bank since the FDIC insures those accounts up to $250,000.

Who Should Invest?

The Vanguard Cash Reserves Federal Money Market Fund carries a significant amount of cash, making it an incredibly liquid asset. Securities held in the fund are also highly liquid, with the average maturity sitting at 38 days. This makes the fund highly suitable for conservative investors whose tolerance for risk is low. It’s also a great investment choice for anyone who may need quick access to money on a daily basis.

That doesn’t mean investors with longer-term investment horizons can’t benefit from the fund. In fact, these investors may use VMRXX for the cash allocation of their long-term investment portfolios, using it as a complement to some of their other, riskier holdings.

Important

Investors with short-term investment horizons of one to three years may find VMRXX a suitable choice to keep their cash earning competitive rates.

Risks Associated with VMRXX

In the absence of a financial crisis, the risk of principal loss is minimal. The fund is set to continue to mirror the short-term interest rates available in the U.S. economic environment, so investors can expect to see the fund increase its yield when short-term interest rates begin to rise. Although this makes it a relatively stable investment with a low cost and monthly income, VMRXX does come with some pitfalls. Here are some of the most common risks associated with the fund which could hurt your investment:

  • Credit risk: You may experience a drop in security prices if issuers can’t make the interest or principal payments. This risk, though, is very low, as the fund invests in high-quality securities.
  • Income risk: Any drop in interest rates will directly impact the income paid by the fund. That’s because the fund relies heavily on short-term interest rates. As an investor, you can expect income risk to be higher because short-term rates tend to fluctuate over shorter periods of time.
  • Industry risk: A small portion of the fund invests in commercial paper and bonds, so if there are any problems or situations that affect an industry, it will translate to the fund’s performance. For example, any risks associated with the financial services industry will affect the fund if it invests in securities invested by that sector.
  • Principal growth risk: Because the share price is restricted to $1 per share, there’s very little chance that your principal investment will grow. The trade-off, though, is that you probably won’t lose money either.

Are Money Market Funds Risky?

No. On the contrary, money market funds are among the safest investments out there. The relatively low yields on these funds reflect this fact. Money market funds operate with a target value of $1 per share. Money market funds have only dipped below this value (“broke the buck“) on very few occasions associated with financial crises and have quickly recovered.

What Was the First Money Market Mutual Fund?

The first money market mutual fund appeared in 1971 and was called “The Reserve Fund.”

Is a Money Market Fund the Same Thing as a Money Market Account?

No. A money market fund is a mutual fund investment that holds short-term treasuries and other money market instruments. A money market account is a bank product that credits depositors a rate of interest and is FDIC-insured.

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