WisdomTree and MoonPay have announced a Sept. 17 collaboration to build another U.S. access route to the WTGXX tokenized Treasury money market fund while MoonPay plans to use the fund in its stablecoin reserve management.

WisdomTree said the planned connection will use MoonPay’s blockchain technology and distribution network, which the companies said reaches more than 35 million accounts and over 1,700 partners. MoonPay has not identified a stablecoin that will hold WTGXX reserves, disclosed an allocation amount or given a date when the investor access point will become available.

MoonPay access to WTGXX remains under development

The arrangement is designed to give eligible U.S. investors another route into WTGXX outside WisdomTree’s existing direct channels. Transactions in the regulated fund will still involve WisdomTree Securities, Inc., the broker-dealer that distributes WTGXX.

MoonPay will supply technology and access to its customer network, but WisdomTree states that MoonPay is not acting as a broker-dealer or investment adviser for WTGXX. The distinction keeps the securities activity tied to WisdomTree’s regulated distribution structure.

No launch date appears in the announcement. WisdomTree describes the MoonPay access point as something it “is building,” while the technology is “expected to support” access once the planned integration is ready. Those statements describe future work and do not confirm that retail investors can buy WTGXX through MoonPay today.

Jonathan Steinberg, WisdomTree’s founder and CEO, said the companies want to create another path for eligible U.S. investors to move assets into the fund.

“Working with MoonPay as an access point can give eligible U.S. investors another path to deploy their assets into WTGXX,” Steinberg said. The wording describes the intended product structure, not a completed rollout.

MoonPay says its U.S. regulatory footprint includes a New York BitLicense, a New York Limited Purpose Trust Charter and money transmitter licenses. Its corporate description lists operations across fiat payments, crypto trading, commerce and stablecoin infrastructure.

WTGXX was reworked for stablecoin reserve eligibility

WTGXX is an open-end money market mutual fund registered under the Investment Company Act of 1940. Its investment objective is to generate current income while preserving capital and liquidity and maintaining a stable $1.00 net asset value per share.

The latest SEC-filed prospectus requires the fund to keep at least 99.5% of total assets in government securities, cash and fully collateralized repurchase agreements. Under normal conditions, WTGXX invests exclusively in U.S. dollar cash, short-term Treasury securities, overnight Treasury-backed repos and registered government money market funds.

WisdomTree changed the product’s name and investment policy in November 2025 specifically to address stablecoin reserve use. An SEC-filed notice said the changes were intended to make the fund an eligible investment option for payment stablecoin issuers seeking to comply with the GENIUS Act and related rules.

The current prospectus carries the same language. It says WTGXX invests in a manner intended to satisfy the types of eligible reserve assets permitted for payment stablecoin issuers under the GENIUS Act. That does not mean every stablecoin issuer can automatically use the fund without considering its own regulatory requirements.

At June 30, WTGXX held 80.9% of net assets in U.S. government obligations and 19.3% in repurchase agreements. Treasury bills accounted for 64.1%, while a floating-rate Treasury note represented 16.8%. Its holdings included overnight repos with institutions such as Deutsche Bank.

The fund charges a 0.25% annual expense ratio. Its fiscal-year return through June 30 was 3.75%, compared with 3.90% for the ICE U.S. 1-Month Treasury Bill Index. Past returns do not establish what future WTGXX investors will earn.

WisdomTree already offers WTGXX around-the-clock liquidity

Before the MoonPay agreement, WisdomTree had expanded how investors could move in and out of WTGXX.

In February, the company launched 24/7 secondary trading and instant settlement for WTGXX after receiving SEC exemptive relief. WisdomTree Securities acts as principal in that structure, with eligible transactions settling against USDC outside conventional securities-market hours.

By June, WisdomTree had reduced secondary-market redemption commissions for its Instant Liquidity service to zero basis points. The service operates through WisdomTree Connect and allows qualifying investors to access WTGXX liquidity around the clock.

WTGXX has entered other treasury and blockchain workflows during 2026. WisdomTree reported that Plume and Toku used the fund in a payroll pilot, LotusUSD referenced it within a reserve framework, and Stable Sea made it available for corporate treasury use.

As earlier corporate cash coverage reported, Stable Sea expanded its WisdomTree offering in August to include two more digital funds alongside WTGXX. Eligible businesses place orders through WisdomTree Securities while using Stable Sea’s interface.

The SEC has independently classified WTGXX among the money market funds it identifies as tokenized. The regulator’s April statistics included WTGXX alongside products from Franklin Templeton, Fidelity, Dreyfus and M3Sixty whose ownership records are maintained at least partly through crypto networks.

WTGXX still carries ordinary money market and technology risks. WisdomTree warns that investors can lose money, the $1 share value is not guaranteed, and the fund is neither a bank account nor FDIC-insured. The prospectus separately notes risks connected with blockchain technology, including theft, inaccessibility and regulatory changes.

MoonPay has already connected another tokenized fund

The WisdomTree agreement is not MoonPay’s first connection to a regulated tokenized money market product.

In June, Franklin Templeton connected its BENJI fund with MoonPay Trade for institutional users. As prior MoonPay fund coverage reported, that arrangement allows eligible institutions to exchange stablecoins such as USDC and USDT for tokenized fund shares through MoonPay’s onchain trading infrastructure.

MoonPay Trade was introduced in May as an institutional platform covering tokenized assets, stablecoin liquidity and decentralized finance connections. Earlier institutional platform coverage reported that the service supports functions including tokenized fund subscriptions, collateral transfers and onchain lending.

The WisdomTree collaboration differs in its stated distribution plan because the companies are targeting eligible individual investors in the U.S. through WisdomTree’s broker-dealer structure. MoonPay’s role in WTGXX stablecoin reserve management creates a second part of the relationship beyond investor access.

WisdomTree has described the deal as a possible base for future work covering other tokenized funds and international markets. Caroline D. Pham, CEO of MoonPay Institutional, said the relationship shows how blockchain infrastructure can be used with regulated U.S. investment products.

The companies have not named any additional fund, country or launch schedule for that potential work. Their Sept. 17 announcement similarly does not specify which MoonPay-issued or supported stablecoin would use WTGXX, how much of its reserves could be allocated to the fund, or when those reserve purchases would begin.