- The stablecoin market has split into two territories: USDT leads in payments while USDC dominates DeFi
- This dual structure is holding for now, but regulation could ultimately force a convergence.
For years, USDT and USDC were treated as near-perfect substitutes: two on-chain versions of the U.S. dollar competing for the same users. Data from the first half of 2026 suggests that narrative no longer reflects reality. According to a Dune Analytics analysis cited by Cointelegraph and later reproduced by blockchainreporter.net, the two stablecoins—which together control 83% of the $315 billion stablecoin market—have stopped competing for the same use cases and instead specialized in distinct functions.
USDT Keeps the Commercial Payments Market
During the first half of the year, USDT processed nearly $95 billion in identified commercial payments, compared with just $14 billion for USDC—a ratio of almost 7 to 1. The gap is even more pronounced in B2B transactions, where Tether accounts for 92% of a $48 billion flow.
The engine behind that dominance is Tron, the network that hosts most of USDT’s circulating supply. Approximately 93% of USDT on Tron is held in regular wallets rather than exchanges, a pattern that points to real-world value transfer—remittances, cross-border trade, and SME working capital—rather than speculative activity. Low fees and fast settlement have effectively turned Tron into a payment rail for economies with limited access to U.S. dollars.
USDC Strengthens Its Position as DeFi’s Unit of Account
The pattern reverses in decentralized finance. In June, USDC generated approximately $2.6 trillion in volume on Base and another $1.6 trillion on Ethereum. These figures far exceed USDT’s payment volumes but are concentrated almost entirely within DeFi protocols: liquidity pools, lending markets, and automated strategies. On Base, USDC’s daily velocity reached as much as 20 times its circulating supply, signaling an asset that is constantly rotating through applications rather than being stored.
Base—the Coinbase-incubated Layer 2 network—has become USDC’s preferred rail, while Ethereum remains the institutional settlement layer for larger transactions. Both networks consistently rank among the most active developer ecosystems, reinforcing USDC’s association with the innovation layer of crypto rather than simple value transfer.
Additional Perspectives Confirm—and Refine—the Trend
The Dune report was widely cited across the crypto media landscape, with several outlets adding further context:
Dune’s perspective. Speaking at ETHCC 2026 in Cannes, Dune CEO Fredrik Haga summarized the trend by stating that stablecoin usage for payments and B2B transactions has effectively “left the station” and is set to remain the largest segment of the on-chain economy, according to Cointribune. Haga also warned that excessive regulation of on-chain activity could undermine the programmability that makes these systems valuable.
A different metric, a different conclusion. Data from Visa and Allium, cited by bitcoinfoundation.org, complicates the binary narrative. In June, adjusted stablecoin transaction volume reached a record $1.79 trillion. Under that methodology, USDC accounted for 67% ($1.21 trillion) while USDT represented 32% ($576 billion), with Base and Ethereum nearly tied as the leading networks. The contrast with Dune’s findings highlights how outcomes vary depending on what is measured—identified commercial payments versus total transaction volume—and serves as a reminder that no single on-chain dataset tells the full story.
The operational view. Crypto Daily translates the divergence into practical treasury decisions. Paying suppliers quickly and cheaply with digital dollars continues to favor USDT on Tron, while providing liquidity or operating within Ethereum Layer 2 ecosystems naturally pushes users toward USDC. The publication notes that the most efficient route between these two ecosystems is rarely an on-chain bridge; instead, it is often a centralized exchange with deep liquidity in both assets.
The regulatory backdrop. This specialization is unfolding alongside the passage of the GENIUS Act in the United States, which established the first federal framework for payment stablecoins, and continued uncertainty around the CLARITY Act, whose chances of Senate approval before the August recess remain, according to Galaxy, around 50%. Adding another layer of competition is Open USD (OUSD), backed by more than 140 companies, including Visa and Mastercard, which could introduce a third pole in the stablecoin specialization landscape.
What It Means for the Market
The broader takeaway is that the traditional “USDT versus USDC” comparison is becoming less useful as an analytical framework. Each asset has built a distinct moat. Tether’s advantage comes from deep integration with wallets and payment-oriented exchanges across emerging markets. Circle’s strength lies in composability within the DeFi stack, where every new protocol reinforces USDC’s role as preferred collateral and unit of account.
For banks and fintech companies across Latin America, the implications are immediate. Institutions designing cross-border payment rails or B2B settlement networks with stablecoins will likely find USDT—and Tron—to offer the deepest pool of real-world transactional liquidity. By contrast, treasury strategies built around on-chain finance or participation in institutional DeFi increasingly point toward USDC.
The open question—and the one likely to define the second half of 2026—is whether this dual-market structure can endure, or whether regulation will eventually force the two ecosystems toward convergence.