Terra LUNA and UST: the 45 Billion Dollar Death Spiral
2026-09-10
In April 2022 Terra was a top-ten ecosystem. By mid-May, LUNA had fallen from 119.51 dollars to fractions of a cent and the UST stablecoin traded near zero. Roughly 45 billion dollars of combined market value was wiped out in days, the fastest large-cap collapse crypto had seen.
| Metric | Value |
|---|---|
| LUNA all-time high | $119.51, 5 Apr 2022 |
| LUNA low | Near zero by 13 May 2022 |
| Drawdown | -99.99% |
| UST depeg | Slipped 7 May, broke hard 9 May 2022 |
| Value destroyed | About $45B in LUNA + UST market cap |
| Core mechanism | Burn-mint peg plus Anchor 20% yield |
Cause of Death: the Burn-Mint Death Spiral
UST was algorithmic: holders could always swap 1 UST for 1 dollar of newly minted LUNA. When large withdrawals pushed UST below its peg on 7 to 9 May 2022, arbitrageurs redeemed UST for ever-growing piles of LUNA and sold them. LUNA supply hyperinflated from hundreds of millions to trillions of tokens, the price cratered, and each redemption pushed the peg further away. The Luna Foundation Guard deployed its bitcoin reserve to defend the peg, but the selling overwhelmed it and the reserve was exhausted within days.
Anchor Protocol made the system fragile: it paid roughly 20 percent annual yield on UST deposits, far above any real lending return, funded largely from Terra subsidies. That yield pulled in most of the UST supply, so when confidence cracked there was a single crowded exit. The peg relied on the belief that LUNA would hold value; once LUNA crashed, the backstop was gone.
Red Flags
Algorithmic peg with no hard collateral. The peg was defended by reflexive LUNA issuance, not by dollars in a vault. Critics had warned for months that a bank run would hyperinflate supply.
Subsidized 20 percent yield. Anchor reserves were visibly draining before the crash and were topped up by the foundation. Yields that high with no matching revenue always come from somewhere.
Concentrated, reflexive growth. Most UST sat in Anchor, and LUNA price strength depended on UST demand. Each leg propped up the other until both fell together.
Lesson: Do Not Trust Yield That Pays You to Ignore the Peg
If a stablecoin needs a 20 percent bribe to hold demand, demand is the risk. Check where yield comes from, what happens to supply in a redemption wave, and whether the reserve can survive a confidence shock. Terra answered all three badly.
Read the rest of the series: Crypto Graveyard hub, FTX and FTT, Celsius and CEL, BitConnect and OneCoin, Squid Game SQUID, HAWK, LIBRA, and LAPTOP.
Sources: CoinDesk on what happened to LUNA, Reuters on the fall of Terra Labs, Bloomberg on the UST crash, and the SEC charges against Terraform Labs.
Not financial advice. Sources checked: 10 September 2026.