Coinbase backs ProShares’ IQMM, the first money market ETF built for stablecoin reserves under the GENIUS Act.
Coinbase has announced an investment in ProShares’ GENIUS Money Market ETF, known as IQMM.
The ETF launched in February 2026 and has since grown to $22 billion in assets. It holds the distinction of being the first money market ETF purpose-built to qualify for stablecoin reserves under the GENIUS Act.
Coinbase says the move is part of its broader push to build out full-stack infrastructure for stablecoin adoption. The investment targets the reserve and liquidity side of the stablecoin ecosystem.
Read also:
Coinbase Premium Index: Institutions Were Selling, Not Buying This Rally
Coinbase Backs GENIUS Act-Compliant Reserve Infrastructure
The GENIUS Act set a clear requirement: stablecoins must maintain 1-to-1 backing with high-quality, highly liquid assets. That standard created a direct need for reserve tools built specifically for this market. IQMM was structured with that requirement in mind.
According to Coinbase, the fund holds short-term US Treasuries with maturities of 93 days or less, alongside cash and cash equivalents. It is designed to meet the Section 4 reserve requirements outlined in the GENIUS Act.
ProShares brings over two decades of ETF infrastructure experience to the product. That track record matters as stablecoin infrastructure increasingly sits at the intersection of crypto, ETFs, money markets, and traditional capital markets.
Coinbase noted that existing cash management tools were not built for this market. IQMM, by contrast, was designed from the ground up for stablecoin issuers.
The timing of the investment aligns with what Coinbase described as a critical shift in the industry. Stablecoin reserve operations have historically relied on a narrow set of banking and cash management rails.
Over time, Coinbase expects that to change. Issuers will likely create and redeem stablecoins against a wider range of assets, including treasuries, ETFs, money market funds, and tokenized instruments.
Coinbase is investing in the ProShares GENIUS Money Market ETF (IQMM).
IQMM launched in February 2026 and has already grown to $22 billion in assets in just a few months.
Coinbase is building out the full stack for stablecoin adoption: distribution, payments, developer tools,… pic.twitter.com/DhrgiyKPtZ
— Crypto Banter (@crypto_banter) June 3, 2026
How IQMM Fits Into Stablecoin Cash Management
Managing money is just as important as moving it. That is the core argument Coinbase made when announcing the investment.
Stablecoins operate 24/7, settle instantly, and serve a growing range of users, from individuals to businesses to AI agents. But the infrastructure supporting the reserves behind those stablecoins has not kept pace with that growth.
IQMM addresses the cash management gap directly. As stablecoin volumes grow, so does the pressure on the systems that manage reserves, handle liquidity, and process creation and redemption flows.
Coinbase pointed out that these less visible parts of the system are just as critical as the front-end payments layer.
The fund also positions itself as one of the largest money market ETFs globally. That scale adds a layer of credibility and liquidity to its role as reserve infrastructure.
For stablecoin issuers looking for compliant, liquid backing assets, IQMM offers a structured and purpose-built option.
Coinbase Expands Its Full-Stack Stablecoin Strategy
Coinbase has been building across multiple layers of the stablecoin ecosystem.
The company already offers distribution, payments, and developer tools. This latest investment extends that work into reserve operations and cash management.
According to Coinbase, the goal is to support the full lifecycle of stablecoin activity, not just trading or transfers.
The GENIUS Act’s passage added urgency to that strategy. By setting regulatory standards for reserve backing, it created both a compliance requirement and a market opportunity.
Tools like IQMM now have a defined role to play in how stablecoin issuers structure their reserves.
Coinbase stated that the industry needs better ways to manage the money that backs stablecoins, not just better ways to move it. The ProShares investment reflects that view.
It also signals Coinbase’s interest in traditional financial plumbing as a foundation for trusted, large-scale stablecoin growth. The company described the investment as part of supporting ProShares as they build tools for the next phase of the stablecoin market.