Stablecoin Liquidity and Exchange Market Structure
Publication date: Not provided in the research brief
Stablecoins have become the dominant quoting and settlement infrastructure for crypto markets. Dollar-pegged trading pairs account for more than 70% of overall cryptocurrency trading, while stablecoins represent approximately 82% of centralized-exchange (CEX) spot volume. USDT and USDC together account for about 96.7% of CEX stablecoin volume. [1][2][3]
This concentration has created a market structure that increasingly resembles selected parts of institutional foreign exchange, while retaining important differences in clearing, settlement, custody, and risk management. [1][2][4]
A layered market structure
Stablecoin markets operate through several interconnected layers.
Issuers manage minting, redemption, and reserve assets. Market makers and over-the-counter desks provide trading depth and help maintain prices across venues. Centralized exchanges, decentralized exchanges, and other electronic venues provide execution. Custody and routing firms connect participants to those venues, while blockchains provide the settlement layer. [1][2][4]
The result is not a single unified market. Instead, liquidity is distributed across issuers, blockchains, exchanges, wallets, market makers, and payment or settlement providers. This structure can support continuous trading, but it also creates dependencies between venues and infrastructure providers. [1][2]
Liquidity is concentrated
Liquidity is concentrated at both the issuer and venue levels.
Sources [1] and [2] estimate total stablecoin supply at approximately $312 billion to $315.3 billion, following a reported peak of $322 billion in May 2026. They estimate USDT’s share of supply at approximately 59.5% and USDC’s at approximately 23.6%. [1][2]
A separate January 2026 snapshot from source [3] puts total stablecoin supply at approximately $290 billion and USDT’s share at about 64%. The differences may reflect observation dates, asset definitions, inclusion rules, or data-provider methodologies rather than a simple contradiction. [1][2][3]
Venue concentration is also significant. Source [2] reports that Binance held approximately 65% of tracked CEX USDT and USDC reserves in February 2026. However, the source cautions that such estimates depend on wallet attribution and on which assets and venues are included. The figure should therefore be treated as an analytics estimate rather than a comprehensive measure of all exchange liquidity. [2]
Concentration can create network effects: traders, market makers, and payment firms may prefer the assets and venues that already have the greatest volume and connectivity. At the same time, concentration can increase the importance of a small number of issuers, exchanges, and infrastructure providers. [1][2]
Market liquidity versus capital liquidity
“Stablecoin liquidity” describes at least two different conditions.
Market liquidity is the ability to buy or sell a stablecoin—particularly when converting it into local fiat—at narrow spreads and with limited price impact. Market makers and OTC desks are the principal providers of this type of liquidity. [4]
Capital liquidity is the availability of working capital or pre-funded balances needed to complete a payment before incoming funds settle. Credit providers and pre-funding arrangements address this problem. [4]
The distinction matters because a market can have substantial trading volume without offering sufficient pre-funded capital for payments. Conversely, a payment network may have access to working capital while still facing wide spreads or limited executable depth in a particular local currency. [4]
Continuous settlement and the limits of the FX analogy
Stablecoin networks operate continuously, with 24/7 transferability and near-immediate on-chain settlement. This differs from traditional banking-hour-dependent settlement processes and is one of the principal advantages cited for stablecoin-based market infrastructure. [1][2][3]
The comparison with institutional foreign exchange is nevertheless incomplete. Sources [1] and [2] argue that stablecoin markets do not have a neutral, member-owned clearing and netting utility comparable to CLS in traditional FX. This is a structural comparison and a risk consideration; it does not establish that a single replacement utility is required or imminent. [1][2]
Stablecoin transactions may settle quickly on a blockchain, but the broader transaction can still depend on exchange withdrawals, wallet controls, custody arrangements, local banking access, blockchain congestion, and the ability to convert into fiat. The supplied research brief does not provide a comprehensive measurement of the delays or costs associated with each of these steps.
Why on-chain volume can overstate liquidity
Reported on-chain transfer volume should not be treated as a direct measure of executable market liquidity or real-economy payment activity.
Sources [1] and [2] estimate that approximately 88% to 95% of unadjusted transfer volume reflects trading, arbitrage, market-maker rebalancing, internal exchange transfers, or automated activity. They estimate that roughly 5% to 10% represents organic payments and remittances. [1][2]
The sources do not provide a transparent methodology for distinguishing organic payments from exchange activity, bots, and internal transfers. The 88%–95% estimate should therefore be treated as an analytical estimate rather than a definitive decomposition of all stablecoin flows. [1][2]
Base’s reported $5.9 trillion of monthly transfer volume against approximately $4.9 billion of stablecoin supply illustrates how velocity and repeated recycling can inflate raw volume metrics. A unit of stablecoin can be transferred many times without representing an equivalent amount of new economic activity or immediately available market depth. [1][2]
For market analysis, the more relevant question is not simply how much value was transferred, but how much could be executed at a specified price, size, venue, and time.
Fragmentation across chains and venues
Stablecoin liquidity is also fragmented across blockchains and trading venues. A stablecoin may exist across multiple networks, while exchanges and market makers may maintain different balances, withdrawal policies, and routing arrangements. The supplied sources identify fragmented liquidity across chains and venues as a principal weakness of the current structure. [1][2]
This fragmentation can require market participants to rebalance inventory between networks or venues. Those transfers may appear in on-chain volume data without representing new demand for stablecoin settlement. They may also introduce operational dependencies that are not captured by a narrow measure of order-book depth. [1][2]
The research brief does not provide chain-by-chain spreads, slippage estimates, order-book statistics, or market-maker inventory data. As a result, it supports a structural assessment of fragmentation but not a precise ranking of liquidity conditions across individual chains or exchanges.
Reserve information and stability risk
Liquidity and stability also depend on information about reserves and collateral quality. The academic paper supplied as source [6] models how reserve uncertainty, large sales, and collateral quality can affect the probability of a run. Its conclusions are theoretical and should inform risk analysis rather than be interpreted as estimates of current exchange liquidity or present-day depeg probabilities. [6]
This distinction is important. A stablecoin can be actively traded and widely used while still presenting risks related to reserves, redemption capacity, issuer concentration, or the ability of market makers to absorb large sales. The research brief does not provide current, independently verified reserve measurements for individual issuers.
Key analytical takeaway
Stablecoins have created a concentrated and continuously operating quoting and settlement infrastructure for crypto exchanges. Its strengths include 24/7 transferability, rapid on-chain settlement, and powerful network effects around USDT and USDC. [1][2][3]
Its weaknesses include concentration risk, fragmentation across chains and venues, uncertainty over the meaning of reported volume, and the absence—according to the supplied sources—of a neutral cross-issuer netting and settlement utility comparable to CLS. [1][2]
The central analytical distinction is between quoted or transferred volume and reliably executable liquidity. Reported stablecoin volume is large, but the amount of liquidity available at narrow spreads, with low slippage and sufficient pre-funded capital, is harder to measure and may be substantially smaller. [1][2][4]
Risk disclaimer
This article is informational and is not investment, trading, legal, or financial advice. Stablecoin, exchange, counterparty, reserve, custody, blockchain, and liquidity risks can change rapidly. The figures cited are estimates from the listed sources and may differ because of methodology, timing, wallet attribution, or asset definitions.
Sources
[1] LiveVolatile, “Stablecoin Liquidity and Exchange Market Structure: Convergence with Global FX Architecture,” publication date indicated in URL as September 13, 2026.
https://www.livevolatile.com/blog/stablecoin-liquidity-and-exchange-market-structure-convergence-with-global-fx-architecture-2026-09-13
[2] LiveVolatile, “Stablecoin Liquidity and Exchange Market Structure: Convergence with Global FX Architecture,” publication date indicated in URL as September 22, 2026.
https://www.livevolatile.com/blog/stablecoin-liquidity-and-exchange-market-structure-convergence-with-global-fx-architecture-2026-09-22
[3] MEXC Learn, “Stablecoin Dominance: Market Liquidity, Infrastructure, Settlement, and Systemic Trade-offs,” publication date not provided in the research brief.
https://www.mexc.com/learn/article/stablecoin-dominance-market-liquidity-infrastructure-settlement-and-systemic-trade-offs/1
[4] FXC Intelligence, “Stablecoin Infrastructure and Liquidity Explainer,” publication date not provided in the research brief.
https://www.fxcintel.com/research/analysis/stablecoin-infrastructure-liquidity-explainer
[5] Federal Reserve, “Primary and Secondary Markets for Stablecoins,” February 23, 2024.
https://www.federalreserve.gov/econres/notes/feds-notes/primary-and-secondary-markets-for-stablecoins-20240223.html
[6] arXiv, “Stablecoin” research paper, version 3, publication date not provided in the research brief.
https://arxiv.org/html/2408.07227v3