Woofun AI reports that the market capitalization of USDT briefly surpassed that of Ethereum, a phenomenon analyzed by Jon Reiter and compiled by Luffy and Foresight News. Although USDT’s valuation has since retreated slightly, remaining within a few percentage points of Ethereum, the event underscores a critical structural shift in the cryptocurrency hierarchy. USDT has effectively positioned itself as the second-largest digital asset after Bitcoin, challenging the traditional dominance of smart contract platforms. This anomaly is not merely a statistical fluctuation but a reflection of deeper market preferences, where the utility of stablecoins is decoupling from the performance of the underlying blockchains that host them.

The broader context reveals a stark divergence in asset performance over the past decade. While the scale of stablecoins has expanded continuously, the market capitalizations of major non-stablecoin assets have remained largely stagnant. This stagnation applies to Bitcoin, Ethereum, SOL, BNB, Ripple, and Tron, indicating that the growth of stablecoins is not correlated with the appreciation of native tokens on these networks. The expansion of stablecoin liquidity is driven by distinct factors unrelated to the speculative value of the chains themselves. This disconnect suggests that the security and viability of stablecoins do not depend on the economic strength of the public chains they inhabit.

To understand this dynamic, one must examine the economic security models typically used in Web3. Many decentralized systems rely on an 'economic safety net' provided by governance tokens. A prime example is the oracle industry, where decentralized autonomous organizations (DAOs) vote to ensure data accuracy for contract settlements. Projects like Chainlink operate on this logic, requiring the total market cap of the DAO’s governance tokens to significantly exceed the volume of transactions settled through the oracle. If a DAO with a $1 million market cap could settle $10 million in contracts, the system would be economically vulnerable to manipulation. Malicious actors could compromise the oracle at a low cost, undermining the fairness of the entire network. This model relies on the premise that the cost of attack must exceed the potential gain, ensuring security through economic incentives rather than just code integrity.

However, this economic security model does not apply to USDT. Ethereum, or any other public chain, does not provide an economic safety net for Tether’s stablecoin. USDT is issued and circulated across dozens of public chains, including Tron, none of which serve as a financial backup for the stablecoin. The security of USDT is centralized within Tether, the issuing company. If a breach occurs on a public chain where USDT is issued, allowing for double-spending or theft, Tether retains the authority to freeze and recover the compromised tokens. The company can then reissue the assets on a different chain, effectively neutralizing the impact of the attack. This centralized control means that the market cap of the underlying chain is irrelevant to the security of the stablecoin itself.

Theoretically, even if a public chain has a market cap of just $1 or $1 trillion, Tether’s ability to manage USDT remains unchanged. By paying the necessary on-chain transaction fees, Tether can exercise full control over the disposal rights of its tokens. In extreme scenarios where attackers gain complete control of a public chain and block interactions with Tether’s official contracts, the company can simply abandon that chain. Tether can refuse to redeem USDT on the compromised network and instead use mechanisms like hard forks or offline ownership certificates to allow innocent users to redeem their assets on other chains. This process is entirely managed by Tether, demonstrating that controlling a public chain does not grant access to Tether’s dollar reserves. The core entity responsible for asset security remains the issuer, not the network.

This centralization implies that the market cap of a native token does not provide real security guarantees for stablecoins. Consequently, a public chain with a native token market cap of just a few billion or even hundreds of millions of dollars can support stablecoins worth hundreds of billions in circulation. The only requirement is that the public chain is stable and reliable enough to facilitate transactions. If a chain’s native token has a market cap of only $1 million, it may struggle to sustain a mature DeFi ecosystem, but there are no fundamental security barriers preventing users from storing billions of USDT there, provided they are willing to do so. The reliability of the chain is a prerequisite, but its economic value is not a determinant of stablecoin security.

The rise in USDT’s market cap relative to Ethereum does not indicate a decline in Ethereum’s value or competitiveness. Instead, it reflects an increasing demand for stablecoins among users with larger amounts of capital. USDT serves as a value storage tool backed by the issuer’s reserves, whereas ETH is essentially a certificate representing future earnings from block space across the Ethereum network. These two assets serve fundamentally different purposes. An increase in USDT’s market cap signifies more users seeking stable value, not a rejection of Ethereum as a platform. The demand for USDT is independent of the demand for Ethereum’s ecosystem services.

The relationship between USDT and Ethereum can be illustrated through two extreme scenarios. In the first scenario, the market largely abandons Ethereum for superior underlying public chains, causing ETH prices to drop significantly.

However, users continue to use USDT for frequent transfers, leading to a divergence where USDT’s market cap exceeds Ethereum’s. In the second scenario, Ethereum achieves major technological breakthroughs, such as innovations in layer-2 architectures or the maturity of zero-knowledge proof technology. These advancements result in a huge increase in network scalability, ample block space supply, and significantly lower transaction fees. In both cases, Ethereum’s market cap could shrink due to increased supply or reduced scarcity, while USDT’s market cap might soar or fall based solely on user demand for stablecoins. The performance of USDT is not tied to the technical success or failure of Ethereum.

Woofun AI data shows that the core driver of USDT’s growth is the demand for permissionless US dollar transfers. This use case has been identified as the most essential application in Web3 for years. Four years ago, analysis highlighted the unique value of this function, and it remains the most critical practical application in the crypto industry today. The permissionless dollar transfer sector holds massive amounts of capital, yet it requires very low technical barriers. No complex protocols or advanced cryptography are needed to facilitate these transfers. The simplicity of the use case allows it to thrive regardless of the sophistication of the underlying blockchain technology.

USDT was initially issued based on Bitcoin’s sidechain, Omni. The logic was straightforward: the issuer sold Bitcoin token certificates in exchange for US dollars, which users could later redeem for actual dollars. Although the implementation has evolved, the core idea remains similar. With just the Bitcoin foundation, a small amount of code is sufficient to create a functional stablecoin. By defining a certain amount of BTC corresponding to a US dollar redemption value and ensuring sufficient reserve funds are held in custody, basic stablecoin functions can be implemented. The key to this model is having a trustworthy issuer. Decentralized stablecoins that do not rely on trust often have inherent flaws, but by adding the issuer’s credit on top of Bitcoin’s simple foundation, transfer needs can be met without requiring cutting-edge technology.

This low technical barrier explains why USDT’s growth is not limited by the capabilities of any single public chain. Ethereum is currently the most popular smart contract platform, but any functioning public chain is sufficient to support stablecoin issuance. The flow of stablecoin funds to different chains does not affect the overall ceiling for USDT’s scale. Stablecoins have extremely low requirements for public chain performance, and the underlying architecture of reserve-based stablecoins has not seen significant improvements in years. The competition between public chains is relevant to their own valuations, but as long as stablecoins have utility, USDT’s total market cap can continue to grow independently.

Ethereum’s market cap serves as a benchmark for estimating the size of the smart contract public chain sector. Currently, Bitcoin accounts for about 60% of the total crypto market cap. After excluding stablecoins, Ethereum accounts for half of the remaining market, with all other public chains sharing the other 50%. Roughly estimated, the total value of all smart contract public chains is about twice that of Ethereum’s market cap. For years, the overall market cap of this sector has remained stagnant, while the scale of the stablecoin sector, led by USDT, has continued to soar. This divergence highlights that the growth of stablecoins is not dependent on the expansion of the smart contract platform market.

The lack of correlation between public chain market caps and stablecoin scales is further evidenced by the performance of competitors. BlackRock’s BUIDL tokenized money market fund and Circle’s USDC are competitors to USDT, but these products do not add significant value to the public chains where they are issued. The scale of stablecoin-related products continues to expand year after year, while the market caps of native tokens on underlying public chains remain flat for long periods. This trend indicates that the utility of stablecoins is driving their growth, not the economic health of the networks they reside on.

The consistent narrative here is that users’ core need is permissionless US dollar assets. They are willing to trust stablecoin issuers, even if they do not care about the background details of those issuers. Objectively, USDT has many controversies surrounding its offshore structure and reserve transparency. Its credit backing is far inferior to that of established financial institutions like BlackRock and PayPal. Yet, USDT still commands a vastly larger scale. Traditional financial giants have entered the stablecoin market, promoting their strong brand advantages, but they have failed to take away mainstream market share from USDT.

Only USDC has achieved a certain scale, but it has long lagged far behind USDT in size and has faced multiple redemption crisis issues in the past. These challenges make it difficult for USDC to rank among the top tier in the long term. For ordinary users, the identity of the issuer is less important than the convenience and widespread circulation of the token. The governance model of the underlying public chain also does not significantly affect user choices. Users prioritize functionality over ideological purity or decentralization metrics.

Even if a public chain’s tokens are highly concentrated and controlled by a single entity, like Tron, users continue to utilize it for stablecoin transfers. Similarly, chains managed for years using multisig wallets, like Polygon, or those with claims of independent custody but actual asset freezing powers held by a security committee, like Arbitrum, are still widely used. Base, which has a complex architecture and is operated by a single company with limited transparency to regulators, also sees significant stablecoin activity. Users accept these structures as long as the transfers are permissionless and efficient.

Currently, USDT is available on 14 public chains, while USDC is available on over 30. Issuers proactively deploy on any public chain where users gather, demonstrating that neither issuers nor users care deeply about the underlying network’s governance or structure. In the entire crypto industry, the only assets with genuine brand recognition are Bitcoin and USDT, with USDC following behind. Users will use these stablecoins on any public chain that offers them, regardless of the chain’s specific characteristics.

The fact that a stablecoin launched by an issuer with an offshore background and questionable credibility can grow to become the second-largest digital asset by market cap, and still mainly circulate on a public chain controlled by a single person like Tron, is a testament to user priorities. All of this shows that users are more concerned about permissionless US dollar usage scenarios rather than the underlying operating mechanisms of the blockchain. If regulatory agencies around the world issue compliance licenses for permissionless US dollar stablecoins, it would signify official recognition of this transfer model. As long as compliant, offshore stablecoins receive regulatory backing, the scale of the entire sector will continue to expand, potentially surpassing the size of the smart contract public chains that support them.