What does the $320 billion market cap of stablecoins reveal? An in-depth analysis of Moody's report and the impact of the CLARITY Act

Moody’s Investors Service Digital Economy Group Vice President Abhi Srivastava recently clarified that the short-term impact of stablecoins on the banking industry is “limited,” but the $320 billion market cap has sent an undeniable structural warning signal to the market. Behind this judgment is an accelerating deep-seated contradiction: the gap between the expanding scale of stablecoins and the regulatory framework is placing the traditional banking system under long-term structural pressure.

Why Do the US Yield Ban and Mature Payment Systems Form a Short-Term Double Barrier?

Srivastava’s analysis is based on two structural factors. First, the existing US payment infrastructure already provides fast, low-cost transfer services, making the differentiated competitive advantage of stablecoins in payment scenarios relatively limited. Second, US regulations explicitly prohibit stablecoin payments from earning yields, preventing them from directly competing with bank deposits through interest rate advantages. These two barriers effectively limit the possibility of stablecoins replacing traditional deposits on a large scale within the US in the short term. The White House Economic Advisory Council’s quantitative assessment also confirms this: banning yield-bearing stablecoins could increase US bank lending by only about 0.02%, or $2.1 billion, with most of the growth flowing to large banks rather than community lenders.

How Do Deposit Outflows and Declining Lending Capacity Form a Long-Term Transmission Chain?

Short-term safety does not mean long-term security. Moody analysts explicitly point out that as stablecoins and tokenized RWA become increasingly popular, the banking industry will face two interconnected transmission paths of pressure: one is deposit outflow, as users transfer funds from traditional bank accounts to on-chain stablecoins; the other is the resulting decline in lending capacity, as the shrinking deposit base directly limits banks’ credit creation ability. The core of this logical chain is that stablecoins are not merely payment tools but are assets with financial infrastructure attributes. As their market value and use cases continue to expand, their influence on banks’ balance sheets is no longer hypothetical but a natural extension of structural trends.

Why Is the Yield Clause in the CLARITY Act a Focal Point in the Banking and Crypto Industry’s Game?

The legitimacy of yield-bearing stablecoins is at the heart of the stalled “Digital Asset Market Transparency Act” (CLARITY Act) in Congress. The bill aims to establish an overall regulatory framework for the crypto market, covering asset classification, regulatory jurisdiction, and market oversight, but has stalled due to conflicts of interest among various parties. Banking lobbies worry that legalizing yield-bearing stablecoins would divert funds from traditional bank accounts to higher-yield on-chain stablecoins, eroding deposit bases and lending capacity. The crypto industry argues that such bans hinder innovation, with industry players like Coinbase openly opposing early drafts. With less than two weeks remaining before the markup session of the Senate Banking Committee in April 2026, the White House has publicly urged the banking sector to abandon obstruction, and the outcome of this contest will be revealed in the coming two weeks.

What Market Signals Are Conveyed by the $320 Billion Stablecoin Market Cap?

According to data from RWA.xyz, the total market cap of US dollar stablecoins has surpassed $320 billion, with USDT approximately $186.6 billion and USDC about $78.3 billion, continuing to hold the top two spots. The proportion of stablecoins in the total cryptocurrency market cap reached a record 10.19% in early 2026, maintaining above $300 billion for three consecutive months. This scale is not an endpoint but a starting point for structural change. Surpassing $320 billion indicates that stablecoins have evolved from experimental tools into systemically important financial infrastructure. The global stablecoin annual trading volume has reached $33 trillion, with application scenarios expanding from trading to payments, settlement, collateralization, yield generation, and RWA settlement. When an asset class simultaneously possesses scale, liquidity, and broad usage, it ceases to be merely an internal industry issue and becomes a common variable across the entire financial system.

How Does the Expansion of Tokenized RWA Amplify Bank Competition?

Stablecoins are not isolated variables. The simultaneous expansion of tokenized real-world assets (RWA) is intensifying competition against banks. As of March 2026, the on-chain RWA market reached approximately $26.48 billion, growing 66% since the start of the year, with about 694k asset holders and a 6% month-over-month increase. Excluding stablecoins, the on-chain value has grown 66% to $23.6 billion since the beginning of the year. Multiple consulting firms project that tokenized assets could reach between $2 trillion and $16 trillion by 2030. As more financial assets migrate onto blockchain, the combined effect of stablecoins and RWA will further compress banks’ core business spaces such as custody, clearing and settlement, and credit creation.

How Are Banks Responding to the Structural Challenges Brought by Stablecoins?

In the face of ongoing stablecoin expansion, banks are not passively reacting. A S&P Global survey in Q1 2026 of 100 banks shows that only 7% are developing relevant frameworks, with no institutions yet launching pilot projects. Meanwhile, some international banks are advancing pilot programs for tokenized deposits, migrating commercial bank funds onto the chain as regulated alternatives to stablecoins and central bank digital currencies. The competition between banks and the crypto industry is shifting from user market share to rule-making in regulatory frameworks. The tug-of-war over “same risk, same regulation” principles will directly influence the future power dynamics of the financial system.

How Will the Regulatory Game Reshape the Stablecoin Ecosystem?

The legislative trajectory of the CLARITY Act is a key variable in understanding the long-term risks of stablecoins. The latest Senate draft clearly delineates boundaries: earning yields solely from idle stablecoin holdings will be prohibited, but incentives tied to actual usage such as trading, staking, and liquidity provision will still be permitted. This compromise aims to balance bank protection with industry innovation. However, if the bill ultimately fails, the crypto industry may face harsher regulatory crackdowns from hostile agencies in the future. Regardless of whether the bill passes, establishing a regulatory framework for stablecoins will fundamentally determine their competitive mode with the banking system—whether as a supplement to banking services or as a gradually evolving alternative financial infrastructure.

Summary

Moody’s assessment provides an important cognitive framework for the market: the short-term impact of stablecoins on banks is limited, but the $320 billion market cap signals an accelerating formation of structural pressure. The US yield ban and mature payment systems form short-term barriers, while deposit outflows and declining lending capacity form a long-term transmission chain. The debate over the yield clause in the CLARITY Act essentially reflects a power struggle between banks and the crypto industry over control of future financial infrastructure. The combined expansion of stablecoins and tokenized RWA is transforming this competition from theoretical speculation into measurable market reality. The final vote on the CLARITY Act by the US Senate in the next two to three weeks will be a critical window to observe the evolution of this structural risk.

FAQ

Q: Why does Moody believe stablecoins pose limited short-term threats to banks?

Moody’s analysis is based on two specific factors: the existing US payment infrastructure already offers fast, low-cost transfers, limiting stablecoins’ comparative advantage; and US regulators explicitly prohibit stablecoin payments from earning yields, preventing them from directly attracting deposits through interest advantages. These factors jointly restrict the potential for stablecoins to replace traditional bank deposits on a large scale in the short term.

Q: Why is the yield aspect of stablecoins a core controversy in the CLARITY Act?

Bank lobbying groups worry that legalizing yield-bearing stablecoins would divert funds from traditional bank accounts to higher-yield on-chain stablecoins, eroding deposit bases and lending capacity. The crypto industry argues that such bans hinder innovation. This conflict of interests has made bipartisan consensus difficult to achieve on the bill.

Q: What would be the impact if the CLARITY Act fails to pass on the stablecoin ecosystem?

Some crypto executives warn that failure could lead to a more hostile regulatory environment in the future, increasing market uncertainty. Conversely, the lack of a clear regulatory framework might also limit institutional adoption of stablecoins, affecting the long-term development potential and institutional confidence in the ecosystem.

Q: What is the relationship between tokenized RWA and stablecoins?

Stablecoins act as “cash equivalents” in on-chain finance, while tokenized RWA involves migrating traditional financial assets onto blockchain. They mutually reinforce each other: stablecoins provide settlement and liquidity support for RWA, and the expansion of RWA creates more use cases for stablecoins. This overlay effect is accelerating the migration of funds from traditional banking systems to on-chain finance.