Can a Stablecoin Lose Its Value? Real Risks Explained
Stablecoins are designed to hold a $1 value, but history shows they can lose their peg. This guide explains how stablecoins work, why depegs happen, which designs are riskier, and how KAST decides which stablecoins to support.
Key Takeaways
- Stablecoins are supposed to stay at a fixed value, but they can drop above or below that target.
- Algorithmic stablecoins are riskier because they depend on market mechanics instead of actual reserves.
- Reserve-backed stablecoins like USDC and USDT are usually more stable because they have transparent backing and regular checks.
If you hold stablecoins or use them for payments, you've probably heard this: one stablecoin equals one dollar.
So… is that actually true?
Short answer: no. Stablecoins can depeg and trade below their target price. Knowing why this happens helps you decide where your money belongs.
This guide explains how stablecoins work, what causes depegs, and why some designs are safer than others.
Yes. Stablecoins can lose their peg and trade above or below $1. This usually happens because of reserve concerns, liquidity stress, redemption problems, or design flaws in the stablecoin itself.
What Are Stablecoins?
Stablecoins are cryptocurrencies designed to hold a steady value relative to another asset, usually the US dollar.
Unlike Bitcoin or Ethereum, stablecoins are designed to stay close to $1.00 and are commonly used for payments, savings, and transfers.
Stable is the goal. The work is getting there.
Three main types of stablecoins:
Most stablecoins people use every day are fiat-collateralized. They're backed by real dollars or short-term US Treasury bills.
What Is Stablecoin Depeg Risk?
Stablecoin depeg risk refers to the possibility that a stablecoin trades meaningfully above or below its target price.
For dollar-pegged coins, that means moving away from $1.00. Sometimes it's a little. Sometimes it's a lot.
Common causes:
- Market Panic: Confidence drops, everyone rushes to sell, and the price falls
- Liquidity Problems: Too many people try to cash out at once and the issuer can’t keep up
- Reserve Concerns: People question whether the reserves really exist
- Structural Problems: The design breaks under stress. Algorithmic coins usually run into this
Many times, when a stablecoin loses its peg, it recovers quickly. USDC and USDT have both dipped during stressful moments and bounced back within hours or days.
But some don’t.
Why the Depeg Risk Matters?
If you use stablecoins for payments, savings, transfers, or card spending, a depeg changes the value of the money you thought was stable.
That risk matters most when markets are under stress, because that is exactly when people need liquidity, redemption, and price stability to hold up.
The Terra USD Collapse: A Stablecoin Depeg Example
In May 2022, Terra USD (UST) fell from $1.00 to almost zero in less than a week. Over $40 billion vanished.
UST was algorithmic. There were no dollars in a bank. Its value depended on trading back and forth with another token called LUNA.
The intended mechanism:
- If UST goes above $1.00, you burn LUNA and create new UST
- If UST goes below $1.00, you burn UST and create new LUNA
In theory, this keeps the peg stable. In practice, it failed.
Here's what actually happened:
As UST slipped below $1, withdrawals from a platform called Anchor caused people to panic.
As holders swapped UST for LUNA, the protocol minted large amounts of new LUNA, which flooded the market and drove LUNA’s price down.
As LUNA fell, the system unraveled fast:
- UST dropped
- More LUNA was created
- LUNA dropped faster
- Confidence disappeared
Within days, UST traded near $0.10. LUNA became worthless.
What you should take away from this:
Algorithmic stablecoins can work when markets are calm. But when confidence breaks, their design can actually speed up the collapse.
Clever code is nice. Real reserves are better.
Is USDe an Algorithmic Stablecoin?
USDe (Ethena) often gets grouped with algorithmic stablecoins, but it works differently from Terra-style failures.
How USDe keeps its value:
It's backed by:
- ETH and BTC collateral
- Delta-neutral hedging using perpetual futures
- Yield from staking and funding rates
USDe uses crypto collateral and hedging instead of a mint/burn system.
USDe compared to Terra USD:
USDe has real backing, but still depends on derivatives, funding rates, and market conditions.
Why USDC and USDT Are Different
USDC and USDT are backed by real assets, not algorithms or trading incentives.
Each token is meant to be redeemable 1:1 for US dollars or highly liquid dollar-equivalent assets like short-term US Treasury bills. This redemption promise is what keeps them stable.
That means when you hold USDC or USDT, there's supposed to be real money or near-cash assets backing every token in circulation.
Live market data sourced from DefiLlama (opens in new tab) and CoinMarketCap (opens in new tab)
USDC: Regulated and Transparent
USDC is issued by Circle, a US-based, regulated financial company. Circle publishes monthly reserve reports that show exactly what assets back USDC, where they're held, and how often they're reviewed.
According to Circle's transparency reports, USDC reserves are designed to be conservative and easy to access.
USDC reserves include:
- Cash held at regulated financial institutions
- Short-term US Treasury bills
These assets are chosen because they can be accessed quickly, even when markets are stressed. Independent accounting firms review and verify these reserves every month, giving you regular visibility into what's backing USDC.
In March 2023, USDC briefly fell to $0.88 during the Silicon Valley Bank crisis. A portion of Circle's cash reserves got temporarily stuck.
Once U.S. authorities guaranteed those deposits, USDC recovered within days. It was a real-world stress test. The redemption system worked.
USDT: Liquid and Battle-Tested
USDT, issued by Tether, is the largest stablecoin out there, with over $186 billion in circulation. It's also one of the most actively used assets in crypto trading, payments, and liquidity markets.
Tether publishes quarterly reserve reports that show what assets back USDT. While they report less frequently than USDC, the reports show a strong focus on liquidity.
USDT reserves include:
- US Treasury bills
- Cash and cash equivalents
- Other short-term liquid assets, including small amounts of gold and Bitcoin
Over time, Tether has reduced riskier holdings and increased exposure to US Treasuries, making its reserves more conservative than in earlier years.
Despite repeated market crashes, regulatory pressure, and massive redemptions, USDT has consistently kept its value with only brief, small deviations. Its ability to process huge redemptions during panic has made it one of the most battle-tested stablecoins in the market.
How to Evaluate Stablecoin Depeg Risk
When choosing stablecoins, check for:
✓ Real reserves
✓ Frequent attestations
✓ Regulatory oversight
✓ A proven track record
✓ Strong liquidity
Reserve-backed stablecoins check most boxes. Algorithmic ones don’t.
Click here for various articles regarding stablecoins, Decentralized Finance and crypto cards.
How KAST Chooses Stablecoins
KAST supports stablecoins that show stronger reserve quality, operational stability, and real-world usability.
Currently supported:
- USDC
- USDT
- USDe (for advanced users)
- PYUSD
- RLUSD
Algorithmic stablecoins without verifiable reserves aren’t supported.
Your stablecoins stay in your wallet. You keep control, and you decide how to spend or move them.
Frequently Asked Questions (FAQ)
Can stablecoins go below $1?
Yes. Stablecoins can trade below $1 if confidence drops, liquidity dries up, or the redemption mechanism fails.
Are all stablecoins backed by real dollars?
No. Some are backed by cash and short-term Treasuries, while others rely on crypto collateral or algorithmic mechanisms.
Is USDC safer than algorithmic stablecoins?
In general, reserve-backed stablecoins like USDC are considered lower risk than algorithmic designs because they rely on real backing instead of market incentives alone.
Can a depegged stablecoin recover?
Sometimes. Some stablecoins recover quickly after temporary stress, while others fail permanently if the design breaks.
The Bottom Line
Not all stablecoins actually stay stable.
Algorithmic designs can fall apart fast when people lose confidence. Terra showed just how bad that can get.
Reserve-backed stablecoins like USDC and USDT are backed by real assets and have survived real stress.
What that gives you:
✓ Assets backing every token
✓ Independent verification
✓ Survival through market chaos
✓ Reliable redemption
Stablecoins only matter if they work when you need them.
Disclaimer: This content is provided by KAST Academy for educational purposes only and is not intended as financial advice or a recommendation to engage in any transaction. All information is provided "as-is" and does not account for your individual financial circumstances. Digital assets involve significant risk; the value of your investments may fluctuate, and you may lose your principal. Some products mentioned may be restricted in your jurisdiction. By continuing to read, you agree that KAST group, KAST Academy, its directors, officers and employees are not liable for any investment decisions or losses resulting from the use of this information.
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