A stablecoin is a digital asset designed to maintain a relatively stable value against a reference asset, most commonly a national currency such as the U.S. dollar. Different stablecoins use reserves, collateral, redemption mechanisms, or other structures to support their target price, but none of these mechanisms automatically eliminates financial or operational risk.

The idea sounds simple.

If one stablecoin is designed to track one U.S. dollar, its price should remain close to $1.

But the mechanism behind that price can be much more important than the price itself.

Two tokens may both trade near $1 while relying on completely different systems involving:

• cash reserves;
• government securities;
• crypto collateral;
• smart contracts;
• market incentives;
• redemption rights.

This means the word stable describes a goal rather than a guarantee.

Understanding stablecoins therefore requires looking beyond the visible market price and asking what actually supports the peg.

What Is a Stablecoin?

A stablecoin is a type of digital asset designed to maintain its value relative to another reference.

The reference may be:

• a national currency;
• another financial asset;
• a commodity;
• a basket of assets.

In practice, many widely used stablecoins are designed around a currency reference, particularly the U.S. dollar.

For example, a dollar-referenced stablecoin may attempt to maintain:

1 token ≈ $1

The stablecoin is still a digital token, but its economic objective differs from cryptocurrencies whose prices are primarily determined by open-market supply and demand without a fixed target value.

The stability mechanism depends on how the stablecoin is designed. International standard-setting bodies therefore focus not only on the token but also on the full “stablecoin arrangement,” including governance, reserves, redemption, infrastructure, and other entities involved in maintaining it.

What Are Stablecoins Used For?

Stablecoins can serve several functions within digital asset markets.

They may be used for:

• transferring digital value;
• moving funds between trading platforms;
• settling blockchain transactions;
• holding a digital asset with a relatively stable reference value;
• participating in decentralized applications;
• making certain digital payments.

For traders, a stablecoin can provide a way to move between volatile digital assets without immediately converting funds into traditional bank money.

For businesses and payment services, stablecoins may also be explored as a mechanism for transferring value through blockchain-based infrastructure.

These uses overlap, but they are not identical.

A stablecoin designed primarily for trading liquidity may face different operational requirements from one intended for widespread payments.

How Does a Stablecoin Work?

There is no single mechanism used by every stablecoin.

A simplified fiat-backed structure may work like this:

1. A user provides money to an issuer or authorized intermediary.
2. Stablecoin tokens are issued.
3. Assets are held as reserves according to the structure of the stablecoin.
4. Tokens circulate through blockchain networks or supported platforms.
5. Eligible holders may request redemption.
6. Tokens are removed from circulation when redeemed.

In theory, reliable redemption helps connect the market price of the token to the value of its reference asset.

Suppose a dollar-linked stablecoin trades below $1.

If qualified market participants can buy the token for $0.98 and redeem it for $1, the potential profit may create buying demand.

If the token trades above $1, new issuance and selling activity can create pressure in the opposite direction.

This mechanism is often described as arbitrage.

But arbitrage only works efficiently when the surrounding system works.

That means:

• redemption must function;
• reserves must be sufficient;
• market participants must trust the process;
• liquidity must exist.

Questions around reserve quality and the ability to meet redemption requests are therefore central to stablecoin risk analysis.

Stablecoin Price: What Keeps the Peg?

The stablecoin price seen on an exchange is a market price.

The target value is the peg.

These are related but not identical.

A token designed to track $1 might trade at:

• $1.00;
• $0.999;
• $1.002;
• or occasionally much further from the target.

Small deviations can occur because of normal market activity.

Larger or persistent deviations may indicate problems involving:

• liquidity;
• confidence;
• reserves;
• redemption;
• market infrastructure.

The key insight is:

A stablecoin does not remain stable simply because its issuer says that one token equals one dollar.

The stability mechanism must create a credible economic connection between the token and the reference asset.

The Difference Between a Peg and Redemption

A peg is the target market value.

Redemption is a process through which an eligible holder exchanges the token according to the rules of the arrangement.

The two concepts should not be confused.

Consider a stablecoin targeting $1.

A trader may see it quoted at $1 on an exchange.

But the important questions include:

• Who can redeem directly?
• At what value?
• How quickly?
• Are there minimum amounts?
• Are fees involved?
• What happens during market stress?

A stablecoin may appear stable during normal market conditions partly because participants expect redemption to work when needed.

If confidence in that expectation disappears, the market price can become more difficult to maintain.

International regulatory recommendations therefore place significant emphasis on effective redemption rights and the assets supporting stablecoin value.

Types of Stablecoins

The main types of stablecoins can be classified according to how their target value is supported.

Fiat-Backed Stablecoins

Fiat-backed stablecoins are designed to maintain value using reserves connected to traditional financial assets.

Depending on the structure, reserves may include combinations of:

• cash;
• bank deposits;
• short-term government securities;
• other permitted liquid assets.

The strength of the structure depends on factors such as:

• reserve quality;
• liquidity;
• custody;
• transparency;
• redemption.

A reserve worth $1 in accounting terms is not necessarily the same as $1 of instantly available cash.

This becomes particularly important during large redemption events.

Research published by BIS in 2026 examined how demandable stablecoin liabilities combined with less-liquid reserve assets can create pressure when holders request large redemptions simultaneously.

Crypto-Backed Stablecoins

Crypto-backed stablecoins use other digital assets as collateral.

Because crypto assets themselves can be volatile, these systems may require more collateral than the value of stablecoins issued.

For example, a system might require collateral worth substantially more than $100 to support $100 of stablecoins.

The additional collateral creates a buffer against market declines.

But rapid falls in collateral value can still create problems.

Some systems therefore use automated liquidation mechanisms when collateral falls below required levels.

Algorithmic Stablecoins

Algorithmic designs attempt to influence stablecoin supply or demand through programmed economic mechanisms rather than relying entirely on conventional reserve assets.

Different designs can operate in very different ways.

The critical issue is whether the economic incentives supporting the target price remain effective during periods of severe selling pressure.

A mechanism that works during normal market conditions can fail when confidence disappears.

This makes stress behavior more important than theoretical stability during calm markets.

Hybrid Models

Some stablecoin arrangements combine elements of:

• traditional reserves;
• crypto collateral;
• automated mechanisms.

For this reason, placing every stablecoin into one simple category can sometimes hide important structural differences.

The better approach is to examine the actual backing and redemption model.

Stablecoin Types Compared

Type	Main Stability Mechanism	Key Risk
Fiat-backed	Reserve assets and redemption	Reserve and issuer risk
Crypto-backed	Digital asset collateral	Collateral volatility
Algorithmic	Economic incentives and automated mechanisms	Loss of confidence
Hybrid	Combination of mechanisms	Structural complexity

The same target price does not mean the same risk profile.

Two stablecoins trading at $1 may have completely different paths to maintaining that value.

Why a Stablecoin Can Lose Its Peg

When a stablecoin moves materially away from its target value, the event is commonly called a depeg.

A depeg can happen for several reasons.

Loss of Confidence

If holders begin to doubt the issuer or backing mechanism, they may rush to sell or redeem.

Reserve Concerns

Questions about reserve value, liquidity, or accessibility can reduce confidence.

Redemption Problems

If holders cannot convert tokens as expected, the connection between the market price and the target value may weaken.

Liquidity Problems

A thin market may experience larger price movements when many participants try to exit simultaneously.

Collateral Declines

Crypto-backed models may face stress when collateral prices fall quickly.

Mechanism Failure

Algorithmic systems may fail if the incentives designed to restore the peg no longer attract sufficient demand.

The important point is that a depeg is often a symptom.

The underlying cause may exist elsewhere in the structure.

The Stablecoin Run Problem

A stablecoin can face a dynamic similar to other financial products offering rapid redemption against a pool of reserve assets.

Imagine that many holders request redemption at the same time.

The issuer may need to convert reserve assets into cash.

If the reserves cannot be liquidated quickly at expected values, the system can come under pressure.

This creates a potential sequence:

Concern about reserves → Redemptions → Asset sales → Greater concern → More redemptions

BIS research has examined how large redemption waves may force reserve asset sales and potentially transmit stress into traditional financial markets.

This provides an important Information Gain angle:

The risk of a fiat-backed stablecoin does not depend only on whether reserves exist. It also depends on whether those reserves remain liquid enough to support redemptions during stress.

Stablecoin Market Cap

Stablecoin market cap is generally calculated using the market value of circulating stablecoin tokens.

For an individual token, the basic idea is:

Price × Circulating Supply

If a dollar-linked stablecoin has 10 billion tokens circulating near $1, its calculated market capitalization would be approximately $10 billion.

But market cap should not be confused with:

• reserve quality;
• trading liquidity;
• issuer strength;
• guaranteed redemption.

A large market capitalization indicates scale.

It does not automatically prove safety.

The same principle applies to the broader crypto market: market capitalization is a useful measurement of relative size, but it does not show how easily every holder could exit at the current quoted price.

Stablecoin vs Cryptocurrency

The comparison stablecoin vs cryptocurrency can be confusing because stablecoins are themselves commonly classified as crypto assets.

The real distinction is usually between stablecoins and cryptocurrencies with freely fluctuating prices.

Stablecoin	Other Cryptocurrency
Designed around a reference value	Price usually floats freely
Uses a stability mechanism	Primarily market-driven price
Often used for settlement or liquidity	May be used for investment, networks, or other purposes
Peg stability is a key objective	Price appreciation or network utility may be more important
Can have reserve or issuer risk	Risk structure varies by asset

So the categories are not complete opposites.

A stablecoin can be a cryptocurrency or crypto asset while still having a fundamentally different economic design from assets whose prices fluctuate freely.

Stablecoin vs Bitcoin

The stablecoin vs Bitcoin comparison shows the difference more clearly.

Bitcoin does not attempt to maintain a fixed value against the U.S. dollar.

Its market price changes according to supply, demand, liquidity, and market expectations.

A dollar-linked stablecoin has a different objective.

It attempts to remain close to its reference value.

Stablecoin	Bitcoin
Targets relatively stable reference value	No fixed price target
May depend on issuer or collateral structure	Native decentralized digital asset
Supply model varies by issuer or protocol	Defined network issuance rules
Often used as digital settlement asset	Often traded or held as a digital asset
Stability mechanism is central	Market price is allowed to fluctuate

A stablecoin may therefore reduce exposure to short-term crypto price volatility relative to Bitcoin.

But that does not mean it is risk-free.

The risks are simply different.

Stablecoins as Digital Assets

Stablecoins belong to the broader category of digital assets.

But their economic characteristics vary.

A fiat-backed stablecoin may combine:

• blockchain-based transfer;
• a centralized issuer;
• traditional reserve assets;
• redemption arrangements.

This hybrid structure is important.

The token may move through decentralized infrastructure while part of its value still depends on centralized institutions holding and managing reserves.

Therefore, “on-chain” does not necessarily mean the entire financial structure is decentralized.

Stablecoins in the Crypto Market

Stablecoins play an important role in many areas of the crypto market.

They can act as a bridge between volatile digital assets and relatively stable units of account.

For example, a trader might sell one cryptocurrency and receive a stablecoin rather than immediately withdrawing money to a bank account.

Stablecoins can also be used as:

• trading pair assets;
• collateral;
• settlement assets;
• liquidity within decentralized applications.

This makes them part of the market infrastructure rather than simply another speculative token.

However, increased use can also make stablecoin reliability more important.

If many platforms and applications depend on the same stablecoin, problems affecting that asset can spread across multiple parts of the ecosystem.

Stablecoins and Digital Payments

Stablecoins may also be used for certain digital payments.

Blockchain networks can allow stablecoin balances to move electronically between compatible addresses.

Potential use cases include:

• business payments;
• cross-border transfers;
• settlement;
• online commerce.

But the existence of a transferable token does not automatically create an effective payment system.

A payment solution still needs to address:

• acceptance;
• conversion;
• transaction fees;
• network performance;
• custody;
• legal requirements;
• user experience.

Stablecoins therefore represent one possible payment instrument, not a replacement for every existing payment system.

What Is the GENIUS Act for Stablecoins?

For the keyword GENIUS Act stablecoin, the important context is that this is specifically a U.S. regulatory topic rather than a general definition of stablecoins.

The GENIUS Act was signed into U.S. law on July 18, 2025 and established a federal regulatory framework for payment stablecoins. The law includes requirements around permitted issuers and the backing of payment stablecoins, while U.S. agencies continued developing implementation rules during 2026.

This highlights a broader point:

Stablecoin regulation can differ significantly between jurisdictions.

Users and businesses should not assume that a stablecoin’s regulatory treatment in one country automatically applies everywhere.

Stablecoin Risks

Stablecoins can face multiple forms of risk.

Reserve Risk

Reserve assets may lose value or become difficult to liquidate.

Redemption Risk

Holders may face restrictions, delays, or other difficulties converting tokens according to expected terms.

Issuer Risk

Users may depend on the organization responsible for issuing and managing the stablecoin.

Custody Risk

Assets or reserve arrangements may depend on custodians or financial institutions.

Liquidity Risk

A token may trade near its target price during normal markets but experience larger deviations under stress.

Technology Risk

Blockchain networks, smart contracts, wallets, and other systems can experience technical failures or security vulnerabilities.

Regulatory Risk

Legal requirements and access can change across jurisdictions.

International bodies have therefore emphasized regulation, governance, risk management, data, and redemption in their recommendations for stablecoin arrangements.

The Biggest Stablecoin Misconception: $1 Means $1

A stablecoin trading at $1 creates a powerful psychological shortcut.

It looks equivalent to one dollar.

But several different things may be hidden behind that price:

$1 quoted market price

is not necessarily the same as:

$1 immediately redeemable by every holder under every condition

and neither is automatically the same as:

$1 of risk-free reserves available at all times

These distinctions become most important during stress.

When everything works normally, they may appear irrelevant.

When confidence falls, they can determine whether the peg survives.

Another Misconception: Fully Backed Means Risk-Free

Suppose an issuer reports reserve assets equal to or greater than the value of stablecoins outstanding.

That is important.

But further questions remain:

• What assets make up the reserves?
• How liquid are they?
• Who holds them?
• Can their value fluctuate?
• Who has direct redemption rights?
• How quickly can redemptions be processed?

The correct question is therefore not only:

Is the stablecoin backed?

It is:

Backed by what, held where, and available how quickly when holders want their money?

Reserve composition and redemption capacity are closely connected to stablecoin resilience.

How to Evaluate a Stablecoin

A useful stablecoin evaluation can be divided into six layers.

1. Reference Asset

What value is the stablecoin trying to track?

2. Stability Mechanism

How is the target price maintained?

3. Backing

What supports the value of tokens in circulation?

4. Redemption

Who can exchange the stablecoin, under what conditions, and at what price?

5. Custody and Governance

Who controls the reserves, issuance, and important operational decisions?

6. Market Liquidity

How easily can holders trade the token when markets are under stress?

These questions provide much more information than the stablecoin’s current market price alone.

Stablecoin Evaluation Framework

Question	Why It Matters
What is the target value?	Defines the intended peg
What supports the peg?	Reveals the stability mechanism
What assets back the token?	Identifies reserve risk
Can holders redeem directly?	Determines connection to underlying value
Who controls issuance?	Reveals governance and counterparty risk
Where are reserves held?	Identifies custody dependence
How liquid is the market?	Affects ability to exit
What happens during stress?	Tests whether the model is resilient

A stablecoin should therefore be evaluated as an entire financial and technological structure rather than only as a token.

Frequently Asked Questions

What is a stablecoin?

A stablecoin is a digital asset designed to maintain a relatively stable value against a reference asset, commonly a national currency such as the U.S. dollar.

What are stablecoins?

Stablecoins are digital tokens that use reserves, collateral, redemption mechanisms, or other structures to try to maintain a target value.

How does a stablecoin maintain its price?

The mechanism varies. Some stablecoins rely on reserve assets and redemption, while others use crypto collateral or automated economic mechanisms.

Is a stablecoin always worth $1?

No. Some stablecoins target $1, while others may reference different currencies or assets. Even a dollar-linked stablecoin can temporarily or permanently trade away from its target price.

What is a stablecoin depeg?

A depeg occurs when a stablecoin’s market price moves materially away from its intended reference value.

What are the main types of stablecoins?

Common categories include fiat-backed, crypto-backed, algorithmic, and hybrid stablecoins.

What is stablecoin market cap?

Stablecoin market cap is the calculated market value of circulating stablecoin tokens, generally based on token price multiplied by circulating supply.

What is the difference between stablecoin and cryptocurrency?

Stablecoins are commonly a type of crypto asset, but they are designed around a relatively stable reference value. Many other cryptocurrencies have freely fluctuating market prices.

What is the difference between stablecoin and Bitcoin?

Bitcoin has no fixed price target and its value fluctuates according to market conditions. Stablecoins attempt to maintain a defined reference value using a stability mechanism.

Are stablecoins safe?

Stablecoins can reduce exposure to some forms of price volatility, but they can still face reserve, redemption, issuer, custody, liquidity, technology, and regulatory risks.

Does a stablecoin backed by reserves have no risk?

No. The quality, liquidity, custody, and availability of reserve assets still matter, especially when many holders request redemption at the same time.

Final Takeaway

Stablecoins are designed to solve a specific problem in digital asset markets: how to transfer and use blockchain-based value without accepting the same degree of price volatility associated with many cryptocurrencies.

But price stability is an engineered outcome.

It depends on a mechanism.

For some stablecoins, that mechanism relies heavily on reserves and redemption.

For others, it relies on crypto collateral, automated systems, or a combination of approaches.

This is why two tokens trading at the same $1 price can carry very different risks.

The most useful way to evaluate a stablecoin is not simply to ask:

Is the price stable today?

Instead, ask:

What keeps the price stable, what happens when holders want to exit, and can the mechanism continue working during severe market stress?

The answer reveals much more about the strength of a stablecoin than its current price alone.