The stablecoin market just crossed $321 billion. That number was sitting around $130 billion barely two years ago. What started as a simple way to park money between crypto trades has turned into a full-blown financial layer, one that now settles more in daily volume than most traditional payment networks. Governments are writing laws for it, banks are building infrastructure around it, and the U.S. just passed its first real stablecoin legislation. If you’re still treating stablecoins as “crypto dollars you don’t need to think about,” you’re behind.
We put together this guide inside the Foxian Research team to break down what stablecoins actually are, how the different types work, what changed in 2025 and 2026, and why this matters for traders and anyone holding digital assets. No fluff, just the information that counts.
Each card below links directly to one of the seven practical workarounds covered in the article.
A stablecoin is a cryptocurrency designed to hold a steady value, usually pegged 1:1 to a fiat currency like the U.S. dollar.
While Bitcoin and Ethereum can swing 10% in a single day, a well-managed stablecoin stays right at or near $1.00.
The concept is simple. An issuer holds reserves (cash, government bonds, or other assets) and mints tokens at a fixed ratio against those reserves. When you want your dollars back, you return the tokens, the issuer burns them, and sends you the equivalent in fiat. That cycle of minting, using, and redeeming is what keeps the price locked in place.
Think of it like a digital claim ticket. You hand over a dollar, you get a token. That token travels across blockchains at any hour, settles in minutes, and costs almost nothing to move. When you’re done, you trade the ticket back for your dollar. The issuer profits from the interest earned on the reserves sitting in their accounts while you hold the token.
Stablecoins got their start as a trading tool. Crypto traders used them to move in and out of positions without converting back to bank accounts every time. But that was 2017. By 2026, they’ve grown into something much bigger, and the numbers prove it.
Nearly 97% of all fiat-backed stablecoins are pegged to the U.S. dollar. The euro-pegged segment reached $500 million in market cap in 2025 but still accounts for a tiny fraction of total supply.
Not all stablecoins are built the same way. There are four categories, each with a different approach to stability, and each carrying a different risk profile.
This is the simplest and most common model. A centralized issuer (like Tether or Circle) holds U.S. dollars, short-term Treasury bills, and cash equivalents in bank accounts. For every token in circulation, there’s supposed to be one dollar (or dollar-equivalent) sitting in reserve. Tether’s USDT and Circle’s USDC control the vast majority of the stablecoin market. Together they represent over 83% of total supply.
The difference between the two comes down to transparency. Circle publishes monthly attestation reports from independent accounting firms and holds reserves mostly in cash and short-term U.S. Treasuries. Tether publishes quarterly assurance reports, but as of February 2026, has never completed a full audit by an accounting firm. That distinction matters when you’re deciding where to park large amounts of capital.
These use other cryptocurrencies as collateral instead of fiat. The best-known example is DAI, managed by the MakerDAO protocol. Because crypto is volatile, these stablecoins require over-collateralization. You might need to lock up $150 worth of ETH to mint $100 worth of DAI. Smart contracts handle the whole process automatically. If your collateral drops below a set threshold, the protocol liquidates your position to protect the peg.
The upside is decentralization. No single company controls the reserves, and everything sits on-chain where anyone can verify it. The downside is that the system depends on the collateral holding its value and on the oracles (price feeds) working correctly under stress.
Tokens like PAX Gold (PAXG) and Tether Gold are pegged to physical commodities, in this case, one troy ounce of gold stored in secured vaults. These aren’t cash equivalents. The token price moves with the commodity price, which means they fluctuate against the dollar.
Commodity-backed stablecoins sit in a regulatory gray zone. The GENIUS Act specifically defines payment stablecoins as those backed by cash and short-term liquid assets, which means gold-backed tokens fall outside that framework. Their trading volume and liquidity are much lower compared to fiat-backed options.
These attempt to hold a peg without any collateral at all. Instead, they rely on smart contracts that automatically expand or contract the token supply based on market demand. When the price goes above $1, the protocol mints more tokens. When it drops below, it burns supply or uses a secondary token to absorb the volatility.
The theory sounds clean. The reality hasn’t been kind. Terra’s UST collapsed in May 2022 in what’s called a “death spiral,” where a loss of confidence triggered mass selling, which broke the algorithmic mechanism, which caused more selling. Billions evaporated in days. Since then, purely algorithmic stablecoins have remained a very small, very high-risk corner of the market. Most serious capital has stayed away.
Fiat-backed stablecoins command roughly 85 to 90% of the total market. Crypto-backed tokens hold a smaller but meaningful share. Algorithmic models remain a niche segment after the 2022 collapse shook confidence across the board.
The stablecoin rankings have shifted over the past year. Here’s where things stand as of early May 2026, based on data from DefiLlama and
CoinMarketCap.
USD Coin (USDC) has climbed to roughly $78.3 billion, capturing about 24.3% of the market. Institutions tend to favor USDC because of its transparent reserve structure and Circle’s regulatory posture. USDC grew 0.61% in the most recent week while USDT slipped 0.14%, a small signal but part of a longer trend.
USDS (Sky) jumped 6.08% over the past week to reach $8.8 billion. Formerly part of the MakerDAO system, it’s been rebranded and
restructured. Capital is clearly rotating into it.
DAI holds the fourth spot at around $4.6 billion, down about 1% recently. It remains the largest truly decentralized stablecoin, backed by a mix
of crypto assets and real-world assets including tokenized Treasuries.
USD1 (World Liberty Financial) rounds out the top five at $4.5 billion, up 3.18% in the past week. It’s the fastest-growing stablecoin in history by circulation speed, reaching $3 billion within nine months of its March 2025 launch. The token is backed by U.S. cash and government money market funds, with BitGo Trust Company serving as custodian. USD1 has attracted attention (and controversy) due to its ties to the Trump family and a $2 billion investment from Abu Dhabi-linked interests.
The top five stablecoins account for nearly $286 billion of the $321 billion total. Everything else splits the remaining $35 billion across dozens of smaller tokens including PayPal’s PYUSD, Ripple’s RLUSD, and a growing number of euro-pegged coins.
For years, stablecoins operated in a legal gray zone. That changed on July 18, 2025, when President Trump signed the GENIUS Act into law after it passed the Senate 68-30 and the House 308-122 with bipartisan support. It’s the first U.S. federal law specifically built for stablecoin
regulation.
Here’s what the GENIUS Act actually does. It requires every payment stablecoin to be backed one-for-one by U.S. dollars, short-term Treasury bills, or equivalent liquid assets. Issuers must publish redemption policies in plain language, allow on-demand redemption for fiat, and submit to regular oversight. The law also makes clear that compliant stablecoins are neither securities nor commodities, settling a classification debate that had been dragging on for years.
The law creates two tracks for issuers. Federal-level licensing is handled by the OCC (Office of the Comptroller of the Currency), the FDIC, and the Federal Reserve. State-level issuers with less than $10 billion in outstanding stablecoins can operate under state regulation, as long as their state’s rules are deemed “substantially similar” to the federal framework by a new Stablecoin Certification Review Committee. If a state issuer crosses the $10 billion threshold, they have 360 days to transition to federal oversight or get a waiver.
As of early 2026, the OCC, FDIC, and Treasury have all published proposed rules to flesh out the Act’s requirements. Comment periods are open, with final rules expected by mid-to-late 2026. The GENIUS Act itself takes full effect no later than January 18, 2027.
Outside the U.S., the European Union’s MiCA (Markets in Crypto-Assets Regulation) established its own framework covering stablecoins. Hong
Kong’s Monetary Authority granted its first stablecoin licenses in April 2026, going to HSBC and Anchorpoint Financial, a joint venture between Standard Chartered Bank (Hong Kong), Animoca Brands, and Hong Kong Telecommunications (HKT). Japan, Bahrain, and Australia have also rolled out or updated their stablecoin rules. The global trend is clear: regulators want stablecoins inside the system, not outside it.
The GENIUS Act prohibits any person other than a permitted issuer from issuing a payment stablecoin in the U.S. It also prohibits digital asset service providers from selling stablecoins to U.S. persons unless the issuer meets the Act’s requirements. This reshapes who can and can’t play in the U.S. market.
Stablecoins aren’t sitting idle on exchanges anymore. They’re powering actual financial activity at a scale that would have sounded unrealistic
three years ago.
Cross-Border Payments. Traditional international wire transfers take 3 to 5 business days and cost $25 to $50 per transaction. Stablecoin
transfers settle in minutes and cost under $1 in network fees. Companies like BVNK processed $30 billion in stablecoin payment volume in
2025, up 2.3x from the year before. A third of that volume came from the U.S. market alone. Pakistan signed an agreement with World Liberty
Financial to explore using USD1 for cross-border payments through its regulated digital payment system, marking one of the first sovereignlevel stablecoin partnerships.
Card Payments and Retail Spending. Visa’s stablecoin-linked card spending reached a $3.5 billion annualized rate in Q4 2025, growing 460%
year over year. Crypto card spending, often backed by stablecoins, passed $18 billion on an annualized basis in early 2026. Mastercard’s
acquisition of stablecoin infrastructure startup BVNK shows the payment giants aren’t just watching, they’re building.
DeFi and Lending. Stablecoins remain the backbone of decentralized finance. They serve as the primary medium for lending, borrowing, and
yield farming across protocols. In Q1 2026, stablecoins accounted for 75% of all crypto trades by volume, and total transaction volume exceeded $28 trillion, a 51% jump from the previous quarter.
South Asia saw stablecoin-driven crypto volumes rise 80% to $300 billion between January and July 2025. The adoption isn’t theoretical anymore, it’s regional and it’s measurable.
Stablecoins are called “stable” but they’re not risk-free. Knowing where the vulnerabilities sit is just as important as understanding the mechanics.
Reserve Transparency. The single biggest risk for fiat-backed stablecoins is whether the issuer actually holds what they claim. USDC publishes monthly attestation reports. Tether has published assurance reports but has never completed a full independent audit. If you’re holding a large position, you’re trusting the issuer’s word and their custodians to manage those reserves properly.
De-Pegging Events. Stablecoins can and do lose their peg temporarily. In March 2023, USDC dropped below $0.90 when Silicon Valley Bank failed and $3.3 billion of Circle’s reserves were frozen at the bank. The peg recovered within days, but anyone who panic-sold during the drop took a real loss. USD1 experienced a brief de-peg event in February 2026, though details were limited.
Smart Contract Vulnerabilities. Crypto-backed and algorithmic stablecoins run on code. If that code has a bug, it can be exploited. DeFi protocols have lost billions to smart contract exploits over the past several years. Even well-audited contracts carry some residual risk.
Regulatory Shifts. The GENIUS Act brings clarity, but it also forces issuers to comply or exit. Foreign issuers face new requirements to operate
in the U.S. market. Regions with less developed regulatory frameworks could see sudden crackdowns that affect local stablecoin access.
Contagion Risk. Fiat-backed stablecoins are structurally similar to money market funds. A large wave of redemptions could force an issuer to sell reserve assets quickly, pushing down the value of those assets and triggering more redemptions. The Federal Reserve flagged this as a
financial stability concern in an April 2026 research note.
No major de-pegs or hacks hit the stablecoin sector during Q1 2026. But the risks haven’t disappeared, they’ve shifted from acute crises to structural concerns around transparency, concentration, and regulatory compliance.
If you trade crypto, stablecoin dominance is one of the most underused metrics on TradingView. It tells you what percentage of the total crypto market cap is sitting in stablecoins rather than in BTC, ETH, or altcoins.
When stablecoin dominance rises, it means money is flowing out of risk assets and into stablecoins. Traders are sitting on the sidelines, waiting. When it falls, capital is rotating back into the market. This makes it a sentiment gauge that’s driven by actual capital flow, not surveys or social media noise.
The native ticker on TradingView for this is STABLE.D, but it only goes back to mid-2025. If you need deeper historical context (and you do, for drawing real support and resistance levels), use a custom formula instead:
(CRYPTOCAP:TOTAL – CRYPTOCAP:TOTALES) / CRYPTOCAP:TOTAL
In Q1 2026, stablecoin share climbed from 9% to 13% of total crypto market cap while the broader market dropped over 20%. That divergence is the signal. When crypto falls and stablecoin dominance rises, it means capital isn’t leaving the space, it’s waiting on the sidelines in stablecoins for the next entry.
Overlay stablecoin dominance on top of TOTAL crypto market cap using TradingView’s symbol overlay feature. When the two lines diverge sharply, you’re looking at a potential turning point. We covered how to set up overlays in our TradingView Hacks guide.
Two years ago, a guide like this would have been mostly about USDT and USDC with a footnote about algorithmic experiments. The picture in 2026 looks completely different. There’s real legislation on the books. Transaction volumes are in the trillions. Banks, payment processors, and sovereign governments are integrating stablecoins into their systems.
For traders, the practical takeaway is that stablecoin supply and dominance are leading indicators, not lagging ones. Watch where the money parks. Watch which stablecoins are growing and which are shrinking. And pay attention to regulatory deadlines, because the GENIUS Act’s full enforcement window opens in January 2027, and the reshuffling has already started.
Built for traders who want to read the market through capital flows, not just price action.
