Money market funds are increasingly popular with investors looking for a low-risk and highly liquid way to earn yield on cash. Today, the asset class is over $7 trillion and growing.

We’re excited to announce that Wealthfront is launching its own money market fund, the Wealthfront Treasury Money Market Fund (“WLTXX”), which is designed to lower client costs and improve after-tax returns. Starting on December 1, 2025, WLTXX will replace RBC BlueBay U.S. Government Money Market Fund (“TIMXX”), in Cash Accounts. WLTXX’s expense ratio will be 0.25% (lower than TIMXX at 0.27%), and it is intended to offer clients a competitive after-tax yield because it will invest primarily in debt securities issued by the US Treasury, whose interest is generally exempt from state and local taxes.

WLTXX’s initial yield will be available at the end of the day on December 1, and will be expressed as a seven-day average (which is standard for money market funds). Because new money market funds can have a lower yield at launch relative to their expected long-term yield, we are waiving the expense ratio for all clients for the first three months.

Read on for more information about WLTXX.

What is a money market fund?

Money market funds are a type of mutual fund that invests in liquid, near-term securities. These can include cash, cash equivalent securities, and high-credit-rating debt-based securities with a short-term maturity (like US Treasuries). They are popular because they offer investors a low-risk and highly liquid way to invest cash.

  • Low risk: Money market funds can be invested in various low-risk investment vehicles, including US Treasuries, which are considered by members of the industry to be very low-risk investments.
  • Liquid: Money market funds typically make it easy to access your money and most do not charge transaction fees. When you sell shares, your cash is usually available within 1-2 business days.

Even with these shared characteristics, it’s important to know that not all money market funds are created equal. Since many money market holdings may include securities like US Treasuries, repurchase agreements, or even cash, tax advantages will vary. Their expense ratios also differ, but the average is 0.38%.

Why is Wealthfront launching a money market fund?

At Wealthfront, we’re always looking for ways to lower costs and help clients improve their after-tax returns so they can keep more of what they earn. Launching WLTXX will help us offer both of those things to Cash Account clients, while providing a low-risk way to earn potential yield on cash.

  • WLTXX offers clients a low-risk way to earn yield: WLTXX will invest primarily in US Treasuries, and US Treasury money market funds are generally considered the safest type of money market fund.
  • WLTXX is designed to offer tax advantages: Income from US Treasuries within WLTXX will generally be exempt from state and local taxes. This is an advantage that other funds invested in other securities (like TIMXX, which holds other securities and a lower percentage of US Treasuries) do not offer.
  • WLTXX’s expense ratio is lower than the fund it is replacing: WLTXX’s expense ratio is 0.25%, lower than the 0.27% expense ratio for TIMXX.
  • WLTXX allows us to build a better client experience: We believe that launching our own money market fund gives us an opportunity to build a better experience for clients in the future.

Our Cash Account, which offers access to a high APY (annual percentage yield) provided by program banks, free instant withdrawals, and checking features, is already popular with clients. We’re excited to further improve the Cash Account by adding this new option, allowing clients to benefit from the tax efficiency of a US Treasury money market fund and SIPC coverage up to applicable limits.

Who should consider WLTXX?

WLTXX will be available as an option for Cash Accounts, just like TIMXX (the money market fund it is replacing). It is designed to be a low-risk, highly liquid investment that seeks to increase the after-tax yield on your cash. However, tax treatment will depend on your individual situation. If you have questions, it’s wise to speak with a tax professional.

Keep in mind that selecting the money market option in your Cash Account means you’ll pay an expense ratio, which you would otherwise not pay on funds held in your Cash Account (although WLTXX’s yield will be presented net of any fees). WLTXX could be right for you if you believe the expected yield, which may include a tax benefit, will increase your overall after-tax yield in the Cash Account.

How can I get started with WLTXX?

WLTXX will start operating on December 1, but you can allocate money in your Cash Account to the money market fund option anytime. If you do this before December 1, you’ll hold TIMXX to start and we’ll automatically reinvest it in the new fund as soon as it opens. You can learn more about WLTXX before it’s available by heading over to our help center and reading the prospectus on the SEC’s website (just search for “WLTXX”).

To get started, open up your Cash Account in the Wealthfront app and click on “Manage.” From there, you can choose the amount you’d like to allocate to the money market fund, and we’ll take it from there.

An investor should consider the investment objectives, risks, and charges and expenses of the fund carefully before investing. A prospectus which contains this and other information about the fund may be obtained by calling 844-995-8437 or emailing support@wealthfront.com. The prospectus should be read carefully before investing.

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Disclosure

The information contained in this communication is provided for general informational purposes only, and should not be construed as investment or tax advice. Nothing in this communication should be construed as a solicitation, offer or recommendation to buy or sell any security. Any links provided to other server sites are offered as a matter of convenience and are not intended to imply that Wealthfront Advisers, Wealthfront Brokerage or any affiliate endorses, sponsors, promotes and/or is affiliated with the owners of or participants in those sites, or endorses any information contained on those sites, unless expressly stated otherwise. All investing involves risk, including the possible loss of money you invest, and past performance does not guarantee future performance. Please see our Full Disclosure for important details.

Investment advisory services are provided by Wealthfront Advisers LLC (“Wealthfront Advisers”), an SEC-registered investment adviser, and brokerage products and services are provided by Wealthfront Brokerage LLC (“Wealthfront Brokerage”), member FINRA/SIPC. Wealthfront Software LLC (“Wealthfront Software”) offers a free software-based financial advice engine that delivers automated financial planning tools to help users achieve better outcomes. Wealthfront Strategies LLC (“Wealthfront Strategies”) acts as the investment adviser to the Wealthfront Treasury Money Market Fund (ticker: WLTXX) (the “Wealthfront Money Market Fund”). The Wealthfront Treasury Money Market Fund is distributed by IMST Distributors, LLC.

Investing involves risk. Principal loss is possible.

You could lose money by investing in the RBC BlueBay US Government Money Market Fund – RBC Institutional Share Class 2 or the Wealthfront Money Market Fund (the “Funds”). Although the Funds seek to preserve the value of your investment at $1.00 per share, they cannot guarantee they will do so. An investment in the Funds is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Funds’ sponsor is not required to reimburse the Funds for losses, and you should not expect that the sponsor will provide financial support to the Funds at any time, including during periods of market stress.

The Wealthfront Money Market Fund pays Wealthfront Strategies an annual management fee of 0.25% of its average daily net assets. Wealthfront Strategies’s receipt of this fee presents a conflict of interest in that any investment you make in the Wealthfront Money Market Fund will result in additional compensation for Wealthfront Strategies, which may benefit Wealthfront Brokerage and its affiliates.

Effective October 14, 2025, Wealthfront Strategies, the investment advisor to the Wealthfront Treasury Money Market Fund, has voluntarily agreed to waive all of the annual unitary management fee it receives from the Fund through March 1, 2026.

There is no guarantee that an investment in the Wealthfront Money Market Fund will provide an investment return that is equal to or greater than the investment return that you would otherwise earn from investing in the RBC BlueBay U.S. Government Money Market Fund – RBC Institutional Share Class 2 (ticker: TIMXX) during the same time period. Investments in the Wealthfront Treasury Money Market Fund are securities and are not insured by the FDIC, carry no bank or government guarantee, are not deposits, and are subject to investment risk, including loss of principal amount invested.

The Wealthfront Treasury Money Market Fund is a money market fund that seeks to provide a competitive yield with low risk and high liquidity by investing primarily in debt securities issued by the US Treasury. This interest is generally exempt from state and local taxes. The RBC BlueBay US Government Money Market Fund – RBC Institutional Share Class 2 is a money market fund that seeks to provide as high a level of current income obtainable from investments in short-term securities as is consistent with prudent investment management, the preservation of capital, and maintenance of liquidity.

Wealthfront Brokerage is a member of the Securities Investor Protection Corporation (“SIPC”), which protects securities customers of its members up to $500,000 (including $250,000 for claims of cash) per account with separate capacity per brokerage firm. Money market funds are securities and are eligible for up to $500,000 of coverage. SIPC does not protect against the decline in value of customer securities and only protects against the loss of cash and securities in the event of a brokerage firm’s failure. Learn more about SIPC at sipc.org.

Wealthfront Advisers, Wealthfront Brokerage, Wealthfront Software, and Wealthfront Strategies are wholly owned subsidiaries of Wealthfront Corporation.

© 2025 Wealthfront Corporation. All rights reserved.

About the author(s)

Dave Myszewski is the Vice President of Product at Wealthfront where he oversees product development, consumer research, and client support. Prior to Wealthfront, Dave worked at Apple for 12 years including an engineering role on the first iPhone. Dave holds an MS and BS in Computer Science from Stanford University.