Coinbase makes a quiet bet on ProShares stablecoin reserve ETF

Coinbase has invested in ProShares’ GENIUS Money Market ETF as stablecoin issuers prepare for stricter reserve rules under the GENIUS Act.

Summary

• Coinbase has invested in ProShares’ IQMM ETF to support stablecoin reserve management.
• IQMM is designed to meet reserve requirements under the GENIUS Act.
• The fund mainly holds short-term U.S. Treasuries, cash, and cash equivalents.
• Coinbase said stablecoin growth needs stronger tools for reserve and liquidity management.

BlockBeats reported on June 2 that Coinbase will invest in the ProShares fund, known by the ticker IQMM. The report said the product is designed as a money market ETF that can qualify for use as a stablecoin reserve under the U.S. stablecoin law.

The move places Coinbase deeper inside the reserve layer of the stablecoin market. Until now, Coinbase has focused heavily on stablecoin payments, distribution, developer tools, and on-chain access. With IQMM, the company is adding exposure to the systems that manage the assets backing dollar-pegged tokens.

Coinbase pushes into stablecoin reserve tools

Coinbase said stablecoins have changed how users, businesses, developers, and AI agents move money by allowing instant settlement at any hour. The company also said that payment adoption needs a stronger reserve infrastructure behind the tokens.

According to Coinbase, reserve management, liquidity management, issuance, and redemption systems will become more important as stablecoins handle more payment and settlement activity. The company said stablecoin issuers need tools built for these functions rather than relying only on older banking and cash management channels.

IQMM gives Coinbase a place in that part of the market. ProShares brings ETF infrastructure experience to the fund, while Coinbase is presenting the investment as part of its attempt to support the full stablecoin stack.

IQMM targets GENIUS Act reserve standards

ProShares designed IQMM around assets that align with the reserve framework established by the GENIUS Act. The law requires payment stablecoins to be backed one-to-one by high-quality, highly liquid assets.

The fund mainly holds short-term U.S. Treasuries with remaining maturities of 93 days or less. It also includes cash and cash equivalents. According to the report, this structure is intended to meet Section 4 reserve requirements under the GENIUS Act.

BlockBeats described IQMM as the first money market ETF designed to serve as a stablecoin reserve asset. Coinbase said products such as IQMM could help issuers manage liquidity during stablecoin creation and redemption.

Stablecoin issuers face new reserve demands

The GENIUS Act passed into law last year, created a federal framework for issuing stablecoins in the United States. The law requires issuers to back payment stablecoins fully with liquid assets such as Treasuries or cash.

However, the rules will not officially take effect until at least early 2027. Regulators are still preparing detailed requirements for stablecoin issuers.

Coinbase said reserve assets could expand beyond direct Treasury holdings as the sector develops. The company listed ETFs, money market funds, and tokenized cash-like products among the instruments that could support future stablecoin reserves.

ProShares launched IQMM in February. The fund generated $17 billion in trading on its first day, according to the provided market data.

Coinbase said stablecoins offer a better way to move money, but also that the industry needs better systems for managing the reserves backing them. Its IQMM investment extends that strategy into the financial plumbing that supports stablecoin issuance, redemption, and liquidity.