Circle’s USDC reserve revenue could face a medium-term downside of 10% to 20%, according to Mizuho. The Japanese financial institution attributes the potential decline to autonomous AI agents that may redirect USDC holders toward traditional savings products offering higher yields.
The warning highlights an emerging threat to stablecoin economics: as artificial intelligence becomes better at comparing financial options, it could make it easier for users to move dollar balances away from low-yield crypto accounts without manually checking interest rates.
USDC, issued by Circle, is a dollar-denominated stablecoin designed to maintain a value of one US dollar. Unlike Bitcoin or Ethereum, it does not normally generate substantial price gains for its holders. Its practical appeal comes from stability, liquidity, and the ability to move between crypto and traditional financial markets.
Why Mizuho believes Circle’s revenue is at risk
Circle earns much of its core revenue from interest generated by the cash and short-term US Treasury instruments backing USDC reserves. When those assets earn more than the interest paid to USDC holders, the difference contributes to Circle’s profit.
That model can weaken when competing products become more attractive. Mizuho’s analysis suggests AI agents could accelerate this pressure by automatically identifying and recommending higher-yielding alternatives, including bank savings accounts and money-market products.
Think of USDC as a convenient digital dollar in a large wallet. If a smart assistant can continuously scan the market and move that dollar into a traditional account paying more interest, Circle may lose some of the reserve income that supports its operations.
How AI agents could change stablecoin demand
An AI agent is software that performs tasks on behalf of a user based on instructions or defined goals. In financial services, such an agent could compare yields, monitor risk, and transfer funds when a better opportunity appears.
Several factors could make these tools important for USDC:
- Automatic yield comparison: Agents can assess traditional and crypto products around the clock.
- Lower switching costs: Users may no longer need to open several accounts or manually research interest rates.
- Real-time optimization: Balances can move as rates, fees, and risk levels change.
- Personalized recommendations: Systems may choose products based on a user’s location, tax status, and preferences.
AI agents do not automatically mean USDC will disappear. Many crypto-native payments still benefit from stablecoins, particularly for users operating across borders or on blockchain-based applications. The concern is that users may hold USDC for shorter periods, reducing the average balances that generate reserve income.
The role of traditional financial platforms
Traditional banks and fintech companies could become stronger competitors as their savings tools become easier to access. For example, investors can compare options on a centralized exchange such as Kraken, while users seeking regulated euro-denominated options may explore Bitvavo.
However, moving fiat savings into a regulated platform may involve settlement times, identity checks, and less seamless on-chain functionality. AI agents could blur this boundary by connecting traditional banking infrastructure with digital assets through APIs and tokenized money.
What a 10% to 20% revenue downside means
The figure cited by Mizuho represents estimated downside risk to Circle’s reserve-related revenue, not a prediction that USDC will lose 10% to 20% of its market value or supply. A smaller revenue contribution would challenge Circle’s profitability, growth plans, and ability to maintain margins as competition intensifies.
Circle may respond in several ways. It could introduce incentives for holding or spending USDC, expand integrations with wallets and decentralized finance applications, or develop products that turn stablecoins into active settlement assets rather than passive cash substitutes.
The USDC ecosystem also benefits from tools that support secure self-custody. A hardware wallet, such as the options available through Ledger, can allow long-term users to keep tokens offline while retaining access to blockchain-based financial services.
Why this matters for the broader stablecoin market
Stablecoins occupy a unique position between crypto and traditional finance. They provide blockchain users with familiar purchasing power, but they also compete with bank deposits, money-market funds, and other low-risk instruments.
If AI makes those comparisons effortless, stablecoins will need to demonstrate more than price stability and transfer speed. Network effects, settlement utility, programmable payments, and access to on-chain applications may become more important than simply holding a digital dollar.
There are counterarguments to the bearish view. USDC revenue depends partly on prevailing interest rates, which can fluctuate independently of AI adoption. Moreover, growth in payments, DeFi, and institutional tokenization could increase transactional demand even if reserve balances decline.
What investors and users should watch
Traders and investors should monitor several indicators rather than treating the Mizuho estimate as a guaranteed outcome:
- USDC supply and reserve balances
- Circle’s reserve income and net interest revenue
- Interest paid to USDC holders
- Growth in payment and DeFi activity
- Adoption of AI-driven financial tools
- Competition from banks, fintech firms, and tokenized money-market funds
The central question is whether AI agents increase USDC’s usefulness as transactional money or simply accelerate the migration of idle balances into higher-yielding fiat products.
Conclusion
Mizuho’s warning signals that AI could become a competitive force in stablecoin markets, even without directly trading tokens. By making yield comparisons and rebalancing easier, autonomous agents may pressure Circle’s reserve revenue if USDC becomes more of a short-term transaction currency and less of a digital savings account.
For USDC holders, the practical takeaway is to compare the full cost and utility of available products rather than focusing only on yield. For market observers, watch Circle’s revenue mix, USDC supply trends, and the growth of agent-based financial infrastructure to determine whether the projected 10% to 20% downside becomes visible in the numbers.
