What is a stablecoin and how does it work?

Summary

• Definition of Stablecoins
• Features and Uses of Stablecoins
• Types of Stablecoins
• Centralized Stablecoins
• Decentralized Stablecoins
• Algorithmic Stablecoins
• Buying Stablecoins
• Loss of Stability of Stablecoins

Definition of Stablecoins

A stablecoin is a form of cryptocurrency distinguished by its ability to maintain a relatively stable value, generally by being backed by tangible assets such as fiat currencies like the US dollar or the euro. Unlike other cryptocurrencies such as Bitcoin or binance/">Ethereum, which are characterized by their high volatility, stablecoins aim to offer a stable alternative to users in an often tumultuous market environment. The fundamental principle of a stablecoin is its anchoring to an underlying asset. This means that a stablecoin aligned with the value of a currency should, in theory, maintain a proportional equivalence, for example, $1 per stablecoin. This dynamic allows holders to protect the value of their investments while remaining part of the cryptocurrency ecosystem. The popularity of stablecoins has exploded in recent years, largely due to their integration into various financial services, including decentralized finance (DeFi). Stablecoins like USD Coin (USDC) and Tether (USDT) have become market mainstays, fulfilling crucial roles in digital asset transactions and management. The various types of stablecoins, ranging from centralized to decentralized solutions, add a wealth of choices for users. Understanding the nuances of each type of stablecoin is essential for assessing their potential impact on traditional and digital financial markets. Stablecoin Type

Backing

Examples CentralizedFiat Currencies

Tether (USDT), USD Coin (USDC)

Decentralized	Cryptocurrencies	DAI, sUSD
Algorithmics	Algorithms	Neutrino USD, TerraUSD (UST)
Features and Uses of Stablecoins	Stablecoins play a fundamental role in the cryptocurrency ecosystem, primarily due to their utility as a medium of kraken/">exchange and store of value. Their primary function is to provide a stable alternative in volatile market environments.	Here are some specific features of stablecoins:
Stable Payment Method	: Stablecoins are used to conduct transactions without being exposed to the volatility of traditional cryptocurrencies.	Volatility Protection

: They allow users to secure their earnings by converting volatile cryptocurrencies into stablecoins, thus protecting their capital.

Use in DeFi

: Stablecoins are often used in DeFi protocols for lending, borrowing, and staking, providing passive returns to users. Facilitating international transactions:

• Stablecoins enable cross-border money transfers faster and more cost-effectively than traditional financial systems. In an increasingly globalized financial world, the demand for secure and flexible payment methods is growing. Stablecoins offer this flexibility while circumventing the restrictions of fiat currencies.
• Another major advantage of stablecoins is their ability to avoid certain tax burdens. In France, for example, converting cryptocurrencies into stablecoins is tax-free, while exchanging them for fiat currencies could be subject to taxes. This unique feature attracts many investors keen to maximize their profits. In summary, stablecoins don’t just serve as repositories of value; they’re actively transforming the way users interact with the world of cryptocurrencies and digital assets.
• Functionality Details
• Stable payment method Enables volatility-free transactions

Protects against volatility

Secures gains during periods of high volatility

Use in DeFi

Supports various decentralized financial applications	Types of stablecoins
There are several types of stablecoins, and their classification depends primarily on their operating mechanism and backing structure. Key points to remember include:	Centralized stablecoins, which require trust in an entity with control over their reserves.
Decentralized stablecoins, which use cryptocurrencies as collateral and rely on community governance mechanisms.	Algorithmic stablecoins, which automatically adjust their circulating supply based on market conditions. Each of these categories has its own advantages and disadvantages, influencing the usage decisions of investors and traders. More details on each type of stablecoin will be provided in the following sections.
Stablecoin Type	Characteristics

Examples

Centralized

• Backed by fiat currencies, managed by an entity
• Tether, USD Coin
• Decentralized

Backed by other cryptocurrencies, community governance

DAI, sUSD	Algorithmic	Automatic supply adjustment mechanisms
Neutrino USD	Centralized Stablecoins	Centralized stablecoins represent the oldest stablecoin model, first introduced with Tether (USDT). These stablecoins are generally backed by reserves of fiat assets, and their issuer must ensure a 1:1 ratio between issued tokens and reserves.
These stablecoins operate through issuance and redemption mechanisms, promoting continuous reserve management. In theory, for each stablecoin created, an identical amount of fiat currency must be deposited as collateral.	Notable examples of centralized stablecoins include:	Tether (USDT): Currently the most widely used and capitalized stablecoin.
USD Coin (USDC): Recognized for its transparency and use in DeFi.	TrueUSD (TUSD): Known for its approach to regulatory compliance.	However, these stablecoins have notable weaknesses, particularly due to their reliance on a centralized entity, which makes them vulnerable to censorship and other external influences. Stablecoin Name

Backing

Special Features Tether (USDT) US Dollar

Most Capitalized and Most Used

USD Coin (USDC)

• US Dollar Reserve Transparency, DeFi Use
• TrueUSD (TUSD) US Dollar
• Regulatory Compliance Decentralized Stablecoins

Decentralized stablecoins differ from their centralized counterparts in that they rely on cryptocurrencies as collateral and feature a community governance model. DAI is the most representative example of this category, linking its value to cryptocurrency deposits on the blockchain.

To issue a decentralized stablecoin, it is necessary to deposit a quantity of cryptocurrency greater than the desired value, creating a process of overcollateralization. This protects the stablecoin against the volatility of the cryptocurrencies used as collateral. Key features of decentralized stablecoins include:	Community governance: Rules regarding collateralization and issuance are defined by user consensus.	Full transparency: All transactions are recorded on the blockchain, enhancing trust.
Censorship resistance	: No single entity to exercise control, which offers greater freedom to users.	Stablecoin Name
Backing	Special Features	DAI
Cryptocurrencies	Community Governance, Overcollateralization	sUSD

Cryptocurrencies

High Operating Costs Due to Overcollateralization Algorithmic Stablecoins Algorithmic stablecoins rely on sophisticated mechanisms designed to regulate their circulating supply in response to market fluctuations. Unlike other types of stablecoins, algorithmic stablecoins do not necessarily require reserves of tangible assets to operate.

A notable example of an algorithmic stablecoin is Neutrino USD, which uses smart contracts to adjust supply to demand. This approach aims to maintain the stability of the stablecoin’s value through automatic adjustments.

Characteristics of algorithmic stablecoins include:

• No Physical Collateralization : Their value is maintained through automatic adjustment mechanisms. Use of dual-token systems:
• These systems sometimes integrate a second token to absorb volatility or balance price fluctuations. Blockchain transparency:
• Transactions and mechanisms are publicly visible, allowing for easy and continuous verification. Despite their advantages, algorithmic stablecoins are often criticized for their instability, and recent failures of some models, such as the former TerraUSD (UST), highlight potential risks associated with this approach.

Stablecoin name	Backing	Special features
Neutrino USD	No physical collateral	Self-adjustment mechanisms
TerraUSD (UST)	Algorithmic mechanisms	Recently failed, an example of algorithmic risks

Purchase of stablecoins

Due to their increasing accessibility, stablecoins are available on almost every cryptocurrency exchange. Whether on centralized exchanges like Binance or Coinbase, or decentralized solutions like Uniswap, it’s now easy to acquire these digital assets. Here are some platforms where you can buy stablecoins: Binance: Offers a wide variety of stablecoins including Tether, USD Coin, and others.

Coinbase: Known for its ease of use and the purchase of regulated stablecoins such as USD Coin and Gemini Dollar.

Uniswap: A decentralized exchange that allows instant exchanges without a central intermediary. Exchange

• Available Stablecoins Exchange Type
• Binance USDT, USDC, EURC
• Trade-Focused Coinbase

USDC, GUSD

Trade-Focused	Uniswap	USDT, USDC
Decentralized Exchange	Loss of Stability of Stablecoins	Although stablecoins are designed to maintain parity with their underlying assets, price fluctuations can occur. These variations can be minor and related to supply and demand dynamics, but more extreme cases exist, particularly with regard to algorithmic stablecoins.
The most striking example of loss of stability is the collapse of the stablecoin TerraUSD (UST) in 2022, which was caused by a combination of market factors and a fragile economic model. This experience highlighted the risks inherent in relying exclusively on algorithms to stabilize value. Reasons for stablecoins losing their stability may include:	Lack of investor confidence: A crisis of confidence can lead to massive stablecoin trading speeds, contributing to a loss of anchor.	Volatility of the underlying cryptocurrencies

: Fluctuations in the value of supporting assets can put pressure on the stablecoins backed by these assets.

Failure of Algorithmic Mechanisms

: Algorithmic systems can fail to adjust in the face of extreme volatility.

• Stablecoin
• Type
• Risk Factors

TerraUSD (UST)	Algorithmic	Lack of trust, increased volatility
Neutrino USD	Algorithmic	Algorithmic Model Failure
FAQ	What is a stablecoin?	A stablecoin is a cryptocurrency whose value is anchored to an underlying asset, usually a fiat currency, to maintain price stability.
What is the difference between a centralized and decentralized stablecoin?	Centralized stablecoins are managed by a single entity that holds the necessary reserves, while decentralized stablecoins rely on community mechanisms and are backed by other cryptocurrencies.	How can I buy stablecoins? Stablecoins can be purchased on most cryptocurrency exchanges, whether centralized like Binance or decentralized like Uniswap.

Why do some stablecoins lose their stability?

Factors such as a crisis of confidence, volatility of underlying assets, and failures in algorithmic mechanisms can lead to a loss of stability in stablecoins.

What are the most popular stablecoins in 2025?

The most popular stablecoins include Tether (USDT), USD Coin (USDC), and DAI, each occupying a unique place in the cryptocurrency ecosystem.