- Stablecoins hold a steady peg to reserve assets such as EUR, USD, or even gold
- In 2026, more than 30% of all crypto transactions include stablecoin exchanges.
- Stablecoin transactions gained popularity because of lower costs and faster settlement.
- USDC and USDT are the two largest stablecoins, both pegged 1:1 to the U.S. dollar
One of crypto’s biggest advantages is speed. For those asking what a stablecoin is, it is a part of the crypto industry that has seen increased adoption. We explain how a stablecoin works, how it differs, and why it is making crypto more mainstream.
What is a stablecoin?
A stablecoins is a form of cryptocurrency that holds a steady value and is backed by reserve assets to maintain its peg. Simply put, stablecoins tie themselves to the value of fiat currencies to make crypto trading easier.
While Bitcoin or Ethereum can swing more than 10% during and outside regular trading hours, a stablecoin aims to have a one-to-one ratio to its reference asset, whether that is USD, EUR, or a commodity like gold. They act as an on-ramp between traditional finance and the on-chain crypto economy, and they’ve gained notoriety because all transactions can be traced back to the initial sender.
A stablecoin is issued by private companies and integrates with blockchain networks, which makes it more efficient.
How do stablecoins work?
Stablecoins work by maintaining their value tied to the asset they hold in reserve. For example, if a stablecoin holds USD and earns USD treasury yields, it maintains 1:1 parity with the USD. While the mechanism is simple, an entire engine runs behind it to ensure it remains independent. As stablecoin issuers emphasize, a stablecoin is issued when the asset's external value is locked into a contract. Once that’s cleared, a transaction is recorded on the blockchain, connecting the asset to the stablecoin on the public ledger. Finally, the process can be reversed since the stablecoin is backed by fiat.
The entire system is driven by collateralization, and a fully collateralized stablecoin holds the exact value in its reserves. For example, if 1 million USDC tokens are in circulation, the issuer must hold $1 million in cash or equivalents to prevent depegging.
Stablecoins reached about $320 billion in market capitalization at the end of May 2026.
A stablecoin can trade below or above its target price when demand, liquidity, or confidence changes. Arbitrage and redemption can help pull the market price back toward the peg, but stability is an objective supported by a mechanism; it is not a promise that the price can never move.
What are the different types of stablecoins?
There are four main types of stablecoins, each using a different method to hold its value steady. The table below breaks down the four main types.
Fiat-backed stablecoins
The most common type, fiat-backed stablecoins hold currency reserves with independent custodians, and these reserves are regularly audited.
Commodity-backed stablecoins
These are tied to physical commodities. Tether Gold (XAUt), for example, is backed by gold reportedly held by a custodian in Switzerland, and holders can redeem for physical bars under certain conditions.
Crypto-backed stablecoins
Because the reserve cryptocurrency can itself be volatile, crypto-backed stablecoins are typically over-collateralized. MakerDAO's DAI is pegged to the U.S. dollar but backed by Ethereum and other crypto worth roughly 100.5% of the DAI in circulation.
Algorithmic stablecoins
Algorithmic stablecoins skip direct collateral, instead using code to expand or contract supply to defend the peg. The approach is risky. TerraUSD (UST) collapsed in May 2022, plunging more than 60% and vaporizing its dollar peg as its sister token Luna fell over 80% overnight.
Since then, the industry has largely moved away from pure algorithmic models, though interest in hybrid, over-collateralized versions remains.
We cover the four types of stablecoins more extensively in a dedicated article.
Why people use stablecoins
Stablecoins became a bridge between traditional currencies and the crypto markets, allowing traders and investors to move from volatility to a dollar-linked token. Before, investors had to use banks and lock up their investments until off-ramp transfers completed the process.
Stablecoins, for that matter, brought speed, making settlement and trading more convenient, especially when markets operated continuously. This means a sender can transfer fiat-backed assets from wallet to wallet and then interact with the crypto markets without waiting for conventional bank transfers.
That doesn’t mean everything happens instantaneously or for free; network fees and congestion costs still apply to on-chain transactions.
$8.2 trillion in stablecoin transaction volume in the first half of 2026, almost double than the same period in 2025.
Businesses have also started exploring stablecoins for cross-border settlements, payroll, and even purchases. Emirates, the world’s renowned airline, recently announced a partnership to allow cryptocurrency and stablecoin payments on their platform, showing how stablecoins can support real-world payments.
As regulation around digital assets continues to accelerate, stablecoin usage will expand from trading markets into regular consumer use. New data shows a shift is taking place, with real-economy usage of stablecoins growing to $550 billion in 2025, a 60% increase from the prior year.
What is the purpose of a stablecoin?
The main purpose of a stablecoin is to combine the stability of traditional money with the speed and flexibility of blockchain. That combination unlocks several practical uses:
Crypto trading: Traders convert volatile assets like Bitcoin or Ether into a stablecoin to lock in value without cashing out to a bank.
Cross-border payments and remittances: Stablecoins enable faster, lower-cost international transfers without traditional banking intermediaries.
Everyday payments: Held in a digital wallet, a stablecoin can be sent to a recipient's wallet over the blockchain, and crypto cards can convert it to local fiat at checkout.
Store of value: In volatile markets, stablecoins offer a place to park capital
Stablecoins compared with Bitcoin, bank money and CBDCs.
Bitcoin and stablecoins are both digital assets, but their purposes differ. Bitcoin is generally treated as a scarce, free-floating asset whose price can change significantly. A stablecoin is designed to reduce price volatility by tracking a reference asset. Neither category is automatically better; they serve different roles and carry different risks.
Stablecoins also differ in terms of asset storage, as bank deposits are claims on a regulated bank and may be covered by a deposit-protection scheme. A stablecoin is generally a claim or token issued under a separate arrangement; thus, its protection, redemption process, and legal treatment can differ.
Central bank digital currencies, often called CBDCs, are different again. A central bank, rather than a private company, would issue them. A private stablecoin can still be useful as a payment or settlement tool, but it does not carry the same status as central-bank money.
Stablecoins vs. altcoins: what's the difference?
The core difference is purpose. Stablecoins are built for stability, while altcoins are built for growth and innovation. Altcoin” usually means any crypto asset other than Bitcoin, so many stablecoins can technically be described as altcoins.
The useful distinction is purpose: stablecoins are designed to track a reference asset, while assets such as Ether or Solana have floating market prices. A stablecoin therefore aims to reduce price volatility relative to its reference asset, but it adds peg, issuer, reserve, redemption, custody, and smart-contract risks.
The risks: are stablecoins actually stable?
The primary risk of a stablecoin is when the asset loses its parity - or the depegging process. Small price differences can occur, especially during periods of market volatility, but larger differences can arise when users doubt the quality of reserves, rush to redeem, or cannot easily trade or redeem the token.
A stablecoin may be backed by assets with different levels of liquidity and credit risk, meaning clear reporting and assurance can increase users' trust and confidence in the asset but doesn’t eliminate the risk. The issuer’s governance, banking relationships, and operational resilience matter even more in this case.
If a stablecoin is held on an exchange, the exchange controls the account relationship and can lead to depegging. If it is held in a self-custody wallet, the holder is responsible for securing private keys and sending funds to the correct address on the correct network.
How are stablecoins regulated?
Stablecoin regulation is expanding, and current regulatory frameworks focus on reserve requirements, redemption rights, and issuer surveillance. Below is a detailed overview of how stablecoin regulation has developed in the EU and the US.
European Union — MiCAR: The Markets in Crypto-Assets Regulation took effect in 2023 and reached full force on July 1, 2026. It requires reserves to be liquid, held by a third party, and maintained at a 1:1 ratio, while strictly regulating algorithmic stablecoins. The European Commission’s MiCA overview is the appropriate starting point for current information.
United States — the GENIUS Act: Signed into law on July 18, 2025, this created the first comprehensive federal framework for payment stablecoins. Issuers must disclose reserve composition monthly, hold liquid assets like U.S. dollars or short-term Treasuries, and avoid misleading claims about federal insurance or legal-tender status. Readers should use the official US record of the GENIUS Act for the current legal context.
The market direction on stablecoins centers on core safeguards, which have increased confidence in the asset as net trading volume has risen in line with demand. By August 2026, there has been a 14.3% year-over-year growth in stablecoin supply driven by stricter guardrails and regulation.
For European investors especially, MiCAR provides a level of transparency and investor protection that makes the space more navigable than it was a few years ago.
A simple stablecoin safety checklist
Before deciding to use any of the existing stablecoins, ask the following five questions:
- Who issues it, and where is that issuer regulated?
- What assets support the token, and how current is the reserve information?
- Can holders redeem at the reference value, and under what conditions?
- Which network will be used, and does the recipient or wallet support it?
- What additional risks come from the exchange, wallet, or financial product around the token?
Where stablecoins go from here
Over the past two years, stablecoins have grown from a trading tool in crypto markets to a critical piece of financial infrastructure. MiCAR and the Genius Act in the U.S. have created the guardrails needed to integrate stables into traditional financial systems. While it will take time for retail to adopt stables fully, a shift has already begun as digital assets provide faster settlement with lower fees.
FAQ
What is the best stablecoin?
There is no universally “best” stablecoin. Compare the reference asset, issuer and legal entity, reserve composition, redemption rights, independent assurance, regulatory status, supported networks, liquidity, custody controls and depeg history. A token can be well collateralized and still expose a holder to issuer, bank, platform, or network risk.
