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Circle downgrade: Clarity Act could erode USDC moat, Mizuho warns

The downgrade hinges not on the bill itself but on the 140-company Open USD consortium behind it, which Mizuho says could fragment Circle's issuer revenue if the law passes.

Mizuho downgraded Circle, arguing that the proposed Clarity Act, if enacted, would accelerate competition for USDC and pressure the issuer's revenue over the long term. The bank's analysts pointed to the unveiling of Open USD, a new dollar-backed stablecoin consortium that now counts more than 140 members including Visa, Mastercard, Stripe, BlackRock and Coinbase.

Why it matters

The downgrade reframes the legislative debate. Clarity Act was widely read as legitimising stablecoins broadly, a tailwind for Circle by association. Mizuho's counter-read is that legitimisation lowers the barrier for new entrants, and a coordinated, payments-and-asset-management-backed competitor like Open USD is exactly the kind of entrant the bill would empower. Circle's edge today rests on incumbency, distribution and trust, advantages that a regulated playing field narrows rather than widens.

Market impact

For USDC holders the read is neutral on safety but watchful on economics. Circle earns yield on reserves backing USDC, and that spread is the engine of issuer revenue. A structural erosion of USDC market share to a consortium alternative directly compresses that engine. Watch USDC supply growth and any changes in reserve composition as the cleanest proxies for whether the competitive pressure is materialising.

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Frequently asked questions

  1. What is the Clarity Act and how would it affect Circle?

    The Clarity Act is proposed US legislation that would create a federal regulatory framework for stablecoins. Mizuho argues that, if passed, it would legitimise the sector broadly but also lower barriers for new entrants, ultimately pressuring Circle's USDC revenue over the long term.

  2. What is Open USD and who is behind it?

    Open USD is a new dollar-backed stablecoin backed by a consortium of more than 140 financial, technology and crypto companies. Named members include Visa, Mastercard, Stripe, BlackRock and Coinbase.

  3. Why did Mizuho downgrade Circle?

    Mizuho downgraded Circle on the view that a regulated stablecoin landscape, combined with the launch of the Open USD consortium, could accelerate competition for USDC and erode Circle's issuer revenue.

  4. How does Circle make money from USDC?

    Circle earns yield on the reserves backing USDC in circulation. That reserve-yield spread is the primary engine of Circle's revenue, so any structural decline in USDC market share directly compresses it.

  5. What indicators should investors watch to gauge the competitive pressure?

    USDC supply growth and any changes in reserve composition are the cleanest on-chain and disclosure-based proxies for whether Open USD or other competitors are materially eating into USDC's market position.

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