May 2022CryptoHistoric

The Terra/LUNA Collapse

Year

2022

Region

Global (crypto markets; project based in South Korea/Singapore)

Markets

Crypto

Crisis

Depeg، Bank Run، Crash، Contagion، Fraud

Severity

Historic

Reading

4 min

Sources

Core lesson

A high advertised yield is a signal of hidden risk, not a free reward. If a return is far above safe alternatives and you cannot clearly explain where the money comes from, assume you are being paid to carry risk you have not measured yet.

◵ Practice the pattern · Practice framework

⏱ 30-second summary

A ~$40bn "algorithmic stablecoin" ecosystem went to near-zero in days — crypto's textbook death spiral.

Timeline

2022-05-07
First cracks: large UST withdrawals from Anchor
Two large addresses pulled roughly 375 million UST out of the Anchor Protocol, and big sell-offs hit the Curve liquidity pool. UST slipped below its $1 peg for the first time. Other large holders, watching the on-chain moves in real time, began heading for the exit too.
2022-05-09
Peg breaks in earnest, death spiral begins
Around 15:00 UTC UST lost the dollar peg again and the redemption mechanism kicked in: holders burned UST to mint new LUNA, flooding the market. LUNA's supply began to explode while its price collapsed — the self-reinforcing death spiral the design was supposed to prevent.
2022-05-10
LFG's Bitcoin reserves spent and depleted
The Luna Foundation Guard (LFG) sold billions of dollars of Bitcoin reserves to buy UST and defend the peg. The intervention bought only hours. Reserves were drained, confidence kept draining faster, and UST broke down for good.
2022-05-13
LUNA near zero, chain halted
LUNA's supply ballooned from about 1 billion to several trillion tokens; its price went from roughly $80 a week earlier to a fraction of a cent. The Terra blockchain was halted. UST was trading around $0.10–$0.20 and never recovered.
2023-02-16
Aftermath: regulators and courts step in
The collapse erased roughly $40bn+ of Terra ecosystem value and helped trigger wider crypto contagion. Regulators and prosecutors later pursued fraud cases against Terraform Labs and its founder over how UST's 'stability' and yields were marketed — turning a market failure into a landmark legal saga.

What happened?

TerraUSD (UST) was a "stablecoin" meant to hold $1, backed not by cash but by an algorithm and its sister token LUNA. A high advertised yield pulled in billions of deposits.

In May 2022 UST lost its $1 peg. The mechanism that was supposed to restore it printed huge amounts of LUNA, crashing its price toward zero in a self-reinforcing "death spiral". Around $40 billion of value evaporated in days, taking several lenders and funds down with it.

Why markets reacted

The peg was held together by confidence, not collateral. UST stayed near $1 only as long as people believed the mint-and-burn link with LUNA would always work. Once large holders started leaving, that belief was the asset — and beliefs can fall faster than any algorithm can respond.

The famous ~20% Anchor yield was the real magnet, and most depositors treated it as a safe savings account rather than a risk position. When the yield looked unsustainable and the peg wobbled, everyone tried to redeem the same exit at the same time — a classic run, but at internet speed and fully visible on-chain.

Because the whole crypto market was interconnected through leverage, lenders, and shared 'stable' collateral, Terra's failure did not stay contained. Forced selling, insolvent lenders, and broken trust spread outward, which is why a single protocol could shake the entire asset class.

What traders usually get wrong

Treating UST like cash or a bank deposit. It was an uncollateralized algorithmic token, not insured savings — calling something a 'stablecoin' did not make it stable.

Believing the death spiral was a slow, recoverable dip and trying to 'buy the dip.' Once the mint-and-burn feedback loop started, supply and price moved exponentially; later buyers took the worst losses.

Assuming reserves and a foundation backstop guaranteed the peg. The Bitcoin reserves were spent in hours and were never large enough to cover a full-confidence run.

Ignoring concentration and contagion risk. Many held UST, LUNA, and lent through the same yield platforms at once, so a single failure cascaded across their whole portfolio and into the broader market.

The risk lesson for traders

A high advertised yield is a signal of hidden risk, not a free reward. If a return is far above safe alternatives and you cannot clearly explain where the money comes from, assume you are being paid to carry risk you have not measured yet.
'Stable' is a claim to verify, not a property to trust. An asset that holds its value only while everyone keeps believing in it has no floor when belief breaks — uncollateralized or self-referential pegs can go to zero, not just wobble.
Liquidity and the ability to exit matter more than the headline price. In a run, the door is narrow and the early, fast, sophisticated players get out first; size your position assuming you may be among the late ones.
Diversify across designs and counterparties, not just tickers. Concentrating savings in one ecosystem, one yield source, and one 'stable' instrument means a single point of failure can wipe out everything at once.

Practise this lesson in Map.Trade

Practice framework

Practice the pattern, not the exact event. Rehearse a self-reinforcing liquidation cascade: how a peg or price breaks, how forced redemptions accelerate the move, and the discipline of exiting early instead of 'buying the dip' — the lesson here is that yield is the price of risk you cannot see yet.

Replay Lab →Practice scenarios →Testing Workflow →Risk review →