Do Kwon is a South Korean entrepreneur who co-founded Terraform Labs in 2018 and served as its chief executive. Terraform built the Terra blockchain and an ecosystem of tokens and applications, including LUNA, TerraUSD (UST), and Anchor Protocol. The collapse of UST and LUNA in May 2022 led to major investor losses and later civil and criminal cases in the United States.
Terraform and the Terra Ecosystem
Terra was a blockchain project whose products included UST, a stablecoin designed to track one U.S. dollar, and LUNA, a volatile token linked to the UST stabilization mechanism. Anchor Protocol, a borrowing and lending application on Terra, offered about 20% annual returns on UST deposits. That unusually high advertised return attracted substantial demand, but it was not a bank deposit or a guaranteed, risk-free yield.
How UST Was Supposed to Hold Its Peg
The Terra Protocol used an exchange mechanism that let participants trade one UST for one dollar’s worth of LUNA, and the reverse, according to the protocol’s rules. That link depended on confidence in LUNA and the ability of markets to absorb trades. It did not give each UST holder a claim on a dollar held in a bank account.
The U.S. Department of Justice’s account of Kwon’s guilty plea says that, after the protocol failed to restore UST’s peg in May 2021, Kwon arranged for a high-frequency trading firm to buy large amounts of UST to support its price. This detail matters: the earlier recovery was not simply proof that the algorithm could always restore the peg on its own.
The May 2022 Collapse
In May 2022, UST again fell below its target. As holders tried to exit, the conversion mechanism could create more LUNA. New supply and falling confidence put further pressure on LUNA’s price, making the system less able to restore confidence in UST. Both tokens lost nearly all their value, and the SEC said the collapse erased about $40 billion in market value.
The episode is often called a “death spiral,” but that shorthand can obscure the mechanics: the two-token design tied UST’s credibility to the market value and liquidity of LUNA, while Anchor’s high yield concentrated demand around UST. When confidence weakened, the mechanism could not guarantee that holders would receive a dollar of real-world value for each UST.
U.S. Civil and Criminal Cases
These were separate proceedings. In the SEC’s civil case, a jury found Terraform Labs and Kwon liable for securities fraud on April 5, 2024. They later agreed to a settlement totaling more than $4.5 billion. Terraform’s share was to fund a wind-down and liquidation process. Kwon agreed to $110 million in disgorgement and $14.32 million in prejudgment interest jointly with Terraform, plus an $80 million civil penalty.
In the federal criminal case, Kwon pleaded guilty in August 2025 to conspiracy to commit commodities, securities, and wire fraud, and to wire fraud. On December 11, 2025, he was sentenced to 15 years in prison and agreed to forfeit more than $19 million. The criminal sentence is distinct from the SEC civil judgment and settlement.
Social Media Sentiment
A December 2025 Reddit discussion about the 15-year sentence includes commenters who describe the term as too lenient given the scale of investor losses. Other replies speculate about a possible future pardon. These are reactions in one discussion thread, not a representative measure of public or crypto-community opinion.
Last updated: 2026-10
Related Terms
- Algorithmic Stablecoin — a stablecoin design related to UST’s peg mechanism.
- Anchor Protocol — the Terra application that offered high yields on UST deposits.
- Stablecoin Risks — risks involved in relying on a token to maintain a target value.
See Also
- Why Algorithmic Stablecoins Keep Failing (And Why People Keep Trying Anyway)
- What the Celsius Collapse Actually Tells Us About Crypto Lending Risk
- Elon Musk Helped Shape the Law That Would Govern His Own Stablecoin
- Swap crypto with ChangeNOW
Sources
- U.S. Department of Justice: Do Kwon sentenced for Terraform fraud — Official account of the guilty plea, federal charges, forfeiture, and 15-year sentence.
- SEC: Terraform and Kwon settlement after the fraud verdict — Official summary of the civil jury verdict, settlement amounts, and Terraform wind-down.
- SEC investor recovery information for the Terraform case — Current SEC information about the bankruptcy claim process for affected investors.
- Briola and colleagues: Anatomy of a Stablecoin’s Failure — Research examining UST’s link to LUNA, Anchor’s role, and the 2022 collapse.