What Are Stablecoins and How Do They Work?
Cryptocurrencies are often associated with rapidly changing prices. Stablecoins aim to offer a different experience by tracking the value of a reference asset, usually a currency such as the US dollar.
They allow users to hold and transfer blockchain-based tokens with a target value that is more predictable than many other cryptocurrencies. However, the word “stable” describes their intended behaviour, rather than a guarantee of safety.
For Australian users, understanding stablecoins means looking at their backing, redemption arrangements, technology and risks before deciding whether to use them.
What Are Stablecoins?
Stablecoins are crypto assets designed to maintain a value linked to a reference asset. This target relationship is commonly called a peg.
For example, a US dollar stablecoin may aim to maintain a value of US$1 per token. An Australian dollar stablecoin may target A$1. Some tokens instead track commodities or other assets.
Maintaining that target depends on the stablecoin’s design and the arrangements supporting it. Its market price can move away from the intended value. The Reserve Bank of Australia explains that stablecoins use different backing and stabilisation mechanisms, with different associated risks.
How Do Stablecoins Work?
Stablecoins combine blockchain-based tokens with a mechanism intended to support their target value.
In a simplified reserve-backed model, an eligible customer provides money to an issuer, which issues tokens. The issuer holds reserve assets intended to support redemption. When an eligible holder redeems tokens, the issuer returns the corresponding money under its terms and removes the redeemed tokens from circulation.
Other users may buy and sell the tokens through exchanges rather than deal directly with the issuer.
Redemption access matters. Minimum amounts, eligibility checks, fees and processing restrictions can affect whether a particular holder can exchange tokens directly for the underlying currency.
What Are the Main Types of Stablecoins?
Currency-Backed Stablecoins
These stablecoins aim to track a currency and are supported by reserves that may include bank deposits and short-term financial assets.
Buyers should examine what the reserves contain, who holds them and what rights token holders have. A statement that a token is “backed” does not fully explain the quality or accessibility of that backing.
Crypto-Collateralised Stablecoins
These designs use crypto assets as collateral. Some require collateral worth more than the tokens issued to provide a buffer against falling prices.
If collateral values decline significantly, liquidation mechanisms may sell collateral to protect the system. These arrangements can still face market stress and liquidity problems. Research on crypto-backed stablecoins shows how collateral composition influences their resilience.
Algorithmic Stablecoins
Algorithmic designs rely partly or primarily on supply changes and market incentives to maintain the peg. Some use a related token rather than substantial external reserves.
Their stability can depend heavily on continued confidence. The RBA identifies unbacked algorithmic stablecoins as particularly susceptible to runs.
How Is the Target Price Maintained?
For a redeemable currency-backed token, the ability to exchange it for its target currency can encourage trading that brings its market price closer to the peg.
As an illustration, a token trading below US$1 may attract eligible buyers who expect to redeem it for US$1. Issuance can provide a corresponding incentive when tokens trade above their target.
These incentives work only when issuance and redemption remain accessible and credible. They cannot guarantee a fixed market price during disruption or loss of confidence. The RBA highlights redemption and reserve liquidity as important elements of stablecoin stability.
Why Do People Use Stablecoins?
Stablecoins are used for several purposes within digital-asset markets.
Examples include:
- Buying and selling other crypto assets.
- Transferring value between compatible wallets.
- Making payments where a recipient accepts them.
- Accessing certain blockchain applications.
- Holding a token that targets a particular currency value.
Their usefulness depends on the network, service provider and recipient. Transaction fees, conversion costs and withdrawal arrangements should be considered alongside any convenience.
The RBA describes trading within the crypto ecosystem as an important stablecoin use, while also discussing their potential role in payments.
Are Stablecoins the Same as Money in a Bank Account?
A stablecoin should not be assumed to provide the same rights or protections as a bank deposit.
Holding a token involves the terms and risks of its issuer, the platform used and any relevant blockchain infrastructure. Access to money may depend on selling the token or meeting redemption conditions.
Australian Government financial education guidance states that crypto assets, including Australian dollar stablecoins, are not legal tender in Australia. Users should check the protections that apply to the particular product and service.
What Risks Should Users Understand?
Depegging
Depegging occurs when a stablecoin moves away from its intended reference value. A small deviation may be temporary, but a serious disruption can lead to substantial losses.
Reserve and Redemption Risk
Reserve assets may face credit, market or liquidity risks. A surge in redemption requests can put pressure on the issuer’s ability to provide funds.
The RBA notes that stablecoin runs may force reserve assets to be sold quickly, potentially worsening financial stress.
Platform and Custody Risk
The stablecoin’s risks are separate from those of the platform holding it. Account restrictions, operational failures or platform insolvency can affect access even when the token remains near its peg.
Technology and Transfer Risk
Wallet compromise, smart-contract faults and transfers to incorrect addresses can cause losses. Using a bridge to move tokens between networks can introduce additional technical dependencies.
Moneysmart highlights security, technology and platform risks as important considerations when using crypto assets.
What Should Australians Know About Currency Risk?
A stablecoin tracking the US dollar targets stability against that currency, rather than against the Australian dollar.
As an illustration, if the Australian dollar strengthens against the US dollar, a US dollar stablecoin may be worth fewer Australian dollars even while maintaining its US$1 peg.
Users should therefore consider the currency in which they earn, spend and expect to withdraw funds.
Do Stablecoins Automatically Earn Interest?
Holding a stablecoin does not automatically create an entitlement to interest.
If a service offers returns for depositing or lending stablecoins, users should examine the separate arrangement producing those returns. Questions include who uses the funds, whether withdrawals can be restricted and what happens if a borrower or platform fails.
A token targeting a stable price does not make an associated lending or investment product low risk. Moneysmart warns that crypto-related products can involve significant risks and limited protections.
How Can Users Evaluate a Stablecoin?
Before using a stablecoin, ask:
- What asset or currency does it track?
- Who issues or manages it?
- What supports its value?
- What evidence is available about its reserves?
- Can I redeem it directly, and on what terms?
- Which blockchain networks are supported?
- Is the token native to that network or a bridged representation?
- What fees apply to buying, transferring and withdrawing?
- Who controls access to my holdings?
- What could prevent me from recovering my money?
These questions help users evaluate the actual arrangements rather than rely on the token’s name or advertised price target.
Learning About Stablecoins Before Using a Platform
For readers exploring a platform such as OptimCoins, learning about stablecoins is one part of understanding digital assets.
Before depositing funds, check the platform’s current supported assets, terms, custody arrangements, fees and withdrawal procedures. Confirm the exact token and network involved in any proposed transfer.
Understanding these details helps users connect an asset’s design with the practical experience of buying, holding and withdrawing it.
A Considered Approach to Stablecoins
Stablecoins offer a way to represent and transfer value through blockchain networks while targeting a reference price. Their ability to maintain that price depends on their design, backing and supporting arrangements.
For Australian users, a careful assessment should include redemption rights, currency exposure, security and platform access. Understanding how a stablecoin works is more useful than assuming that its name guarantees stability.