This week, the market capitalization of stablecoins exceeded $300 billion for the first time in history. The Genius Act and SEC accounting guidance have significantly increased confidence in stablecoins.
This facilitated institutional and retail adoption in 2025.
$300 billion milestone
According to DeFiLlama, Tether (USDT) remains the dominant stablecoin with a valuation of $176.241 billion and accounting for 58.52% of the market. Circle’s USD Coin (USDC) market cap is over $74 billion, and its holdings in USDe, the third highest-yielding stablecoin, are $14.83 billion.
This milestone signals the growing importance of stablecoins in the broader crypto ecosystem and comes as the overall market recovers after a volatile week.
Historically, the third quarter has been a quiet period for cryptocurrencies, but 2025 reversed that trend and ended up being a record period for stablecoins. Activity has skyrocketed, thanks to both regulatory clarity and increased user engagement. According to a report by Cex.io, searches for “stablecoins” on Google have skyrocketed following the groundbreaking announcement.
For example, the United States enacted the Genius Act and the Securities and Exchange Commission (SEC) issued new accounting guidance classifying stablecoins pegged to the US dollar as cash equivalents. These regulatory developments have increased trust among both institutional and retail participants.
Implications for USD’s global role
According to John Murillo, chief business officer at B2BROKER, the rapid growth of the stablecoin market is having a major impact on the global role of the US dollar. In a statement to CryptoPotato, Murillo said the surge was due in part to a slowdown in momentum in major cryptocurrencies like Bitcoin and Ether last month, leading investors and users to turn to dollar-pegged stablecoins.
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He explained:
“This has certainly deepened the global influence of the US dollar, as around 98% of all stablecoins are directly or indirectly pegged to the dollar. This has, for better or worse, brought the US dollar into decentralized finance, cross-border payments, and at the same time contributed to the stabilization of many inflation-hit economies. In regions like Nigeria and Venezuela, digital dollars circulate more freely than local currencies, giving the dollar an edge in the digital realm.”
But Murillo warns that this growth comes with systemic risks. The executive added that stablecoins typically operate outside of traditional banking regulations, which raises questions about reserve transparency, liquidity vulnerabilities, and regulatory gaps. Indeed, a sudden loss of trust due to opaque backing or platform failure can destabilize both crypto markets and traditional fiat systems.
Additionally, stablecoins are increasingly operating within decentralized networks, allowing them to function independently of U.S. institutions, potentially limiting the U.S. government’s direct control over financial influence.
“While the dollar remains dominant in form, it is becoming increasingly competitive in function.”