If you build, integrate, or run a business on stablecoins — this is a forensic report for you.

A counterintuitive start: most people watch the price. But price is already the result. Professionals watch the cause of death. UST wiped out $18B in a week; Acala’s aUSD was minted 1.28B tokens out of thin air by one misconfiguration and crashed to ~$0.009. None died “suddenly” — they all sent signals first. The question was never “will it depeg,” but “did you read the signals before it did.”

Five pathologies, each with a real corpse:

1. Liquidity-exhaustion death — not enough that converts instantly. USDR looked fully collateralized, but only its DAI was immediately redeemable; concentrated redemptions drained it in a day, and the market price halved from $1 to ~$0.5. Cause: less than $1 of that dollar could be pulled out fast.
2. Collateral-collapse death — the reserve, or where it’s kept, blows up. In 2023 USDC had $3.3B cash at Silicon Valley Bank; SVB failed, USDC fell to ~$0.87. The collateral ratio was fine — the problem was the cash might be stuck. (This corpse later “revived” — but you can’t bet on a rescue every time.)
3. Reflexive-algorithmic death — the mechanism self-destructs in panic. UST held its peg via LUNA and ~20% subsidized yield; on depeg it minted LUNA frantically, supply ballooned from hundreds of millions to trillions in days, both went to zero.
4. Oracle-and-bridge death — minting from nothing, bridges breached. Acala mis-minted 1.28B aUSD; Multichain’s operator went dark and bridged assets became orphans on multiple chains. Minting power = printing power.
5. Regulatory-seizure death — one order, and it’s weaned off. BUSD didn’t depeg or lose users — NYDFS simply ordered Paxos to stop minting, and the then-third-largest stablecoin wound down to zero. Cause of death: regulation.

The real moat is the last step: can you do the autopsy on-chain yourself. Read USDC on Ethereum (live, 2026-06-08): price $0.9997, single-chain supply 51.89B.

But when you read “liquidity depth,” don’t make the rookie mistake: a stablecoin’s depeg shows up against other dollars (USDT, DAI), not against ETH. Dumping USDC into a USDC/ETH pool moves the ETH price and costs you swap slippage — it says nothing about USDC’s peg. Death mode 1 happens when sell pressure against other dollars exceeds executable depth while redemption is throttled — then USDC prints below $1 on the secondary market. Remember: book TVL ≠ instantly executable depth.

A thousand narratives, but only five ways to die. The cause hides in reserves, liquidity, permissions, and regulation. Learn to read those four and you’ll see death coming before everyone else. The next stablecoin to die is, right now, sending one of these five signals — which one is the coin you hold sending?

— Excerpt from The Stablecoin Operator’s Handbook: Distribution, Reserves & Compliance.

#StablecoinEconomics #Depeg #OnChainRisk #Stablecoins