A dollar stablecoin is useful because it attempts to bring a familiar unit of account onto a blockchain. You can trade or transfer a dollar-like token without moving a bank deposit for every transaction. The important word is “attempts”: the token’s market price, its backing, and your ability to redeem it are related but separate facts.
Why the price stays near a dollar
Consider a token that an eligible participant can reliably redeem for $1. If it trades at $0.99, that participant can buy it, redeem it, and collect the difference after costs. The purchases support the market price. If the token trades above $1 and eligible participants can create new units at par, issuance and selling exert pressure in the other direction.
This is an economic mechanism, not a command that every trade must occur at $1. The participant needs access to redemption, working banking arrangements, capital, and confidence that the proceeds will arrive. Fees and waiting time create a range within which a small price difference may not be worth trading.
The Federal Reserve’s study of primary and secondary stablecoin markets explains why issuer transactions and exchange trading must be analyzed separately. Many ordinary holders depend on intermediaries that can reach the issuer, rather than having the same redemption rights themselves.
Backing and immediate liquidity solve different problems
Reserve quality concerns what assets support the issued tokens. Liquidity concerns whether those assets can be turned into the required payment when holders demand it. Circle’s reserve disclosures, for example, describe USDC’s backing and independent assurance. A reserve report is useful evidence about specified assets and obligations; it does not make every holder’s conversion route instantaneous.
In March 2023, USDC traded below its dollar target after Circle disclosed exposure to Silicon Valley Bank. The Fed’s case study shows how uncertainty about reserves and interruptions to primary-market access affected secondary prices. The lesson is broader than that episode: a token can trade continuously while parts of its redemption system operate on a different clock.
Other stablecoin designs use volatile collateral or mechanisms linked to another token. Their stability depends on different incentives and loss-absorption arrangements. A dollar label does not make a reserve-backed claim, an overcollateralized loan system, and an endogenous token mechanism economically identical.
The redemption route available to you
Suppose you hold 2,000 tokens trading at $0.99. A market sale returns $1,980 before charges. An accessible $1 redemption route with $15 of total costs returns $1,985. Its apparent advantage is $5, not the full $20 difference between the exchange quote and par.
Now add timing. If the redemption proceeds arrive after a payment is due, the route does not meet that cash need. If you are ineligible to redeem or below the minimum, it is not your executable alternative at all. Comparing feasible routes is more useful than quoting a theoretical arbitrage.
Stablecoins as collateral
A native token and a bridged representation can have different dependencies. The application also decides which asset and network it accepts, and how that asset is valued as collateral. A balance of 10,000 tokens priced at $0.97 has a market value of $9,700 even if the token count is unchanged.
If the same asset supports a leveraged position, a depeg can hurt both the collateral and the trade’s ability to remain open. A yield-bearing wrapper adds another layer: its lending or investment activity determines when the underlying tokens can be withdrawn. The stability of the underlying unit does not establish the stability of the strategy using it.
For trading capital, the relevant value is what the venue recognizes while the position is open and what you can recover when you leave. A dollar redemption target does not guarantee that either amount is one dollar per token at the moment you need it.