In the summer of 2022, the cryptocurrency market suffered one of its largest failures.
An algorithmic stablecoin, TerraUSD (UST), lost its $1 peg, collapsed within days, crashing the sister LUNA along with it.
The result? Tens of billions of dollars were wiped out overnight.
At the time, Terra was the third-largest cryptocurrency ecosystem, and its meltdown began a domino effect that would crush the markets for months to come.
What Was Terra & UST?
Terra was launched by Terraform Labs in Seoul, South Korea, in 2018 by co-founders Do Kwon and Daniel Shin.
It was designed as a proof-of-stake network with the aim of enhancing the functionality of digital money.
By 2021/2022, Terra was one of the largest crypto ecosystems. High yields offered on Anchor Protocol peaked at around 20% APY for UST deposits. This attracted significant support from major investors and retail users.
Boldly, they created an algorithmic stablecoin, UST, that could support daily payments and decentralized applications (dApps).
Instead of holding cash or government securities in reserves like fiat-backed stablecoins – e.g., Tether (USDT), Circle (USDC) – UST stabilized its value with a system.
The LUNA token was tied to UST’s price, which it stabilized through arbitrage.
If UST traded above $1, users were incentivized to burn LUNA and mint new UST. Conversely, if UST fell below $1, users were incentivized to burn UST and mint LUNA.
It was this push and pull that returned the price to the $1 target.
What Happened: Depegging
Anchor Protocol was the first domino to fall. It was the main use case for the TerraUSD stablecoin with a semi-fixed yield of roughly 20% APY.
This resulted in Anchor Protocol holding a majority of circulating UST tokens, which was around $14 billion out of the $18 billion total supply.
In early April 2022, large withdrawals had begun, but in the first weekend of May, the protocol logged around $3 billion in net outflows.
$1 billion was from five addresses. And the other $2 billion was withdrawn through thousands of transactions by the top 20 UST-holding addresses.
Instead of being circulated back into LUNA, this UST was bridged from Terra to Ethereum and traded for other stablecoins.
This resulted in UST depegging to $0.98.
The Collapse
Confidence was rocked amid a broader market shakeout.
Mass withdrawals took place, which saw $11.9 billion in exits between May 7 and May 13. Users were burning UST to mint LUNA and quickly selling the newly created tokens.
LUNA’s price sank because it needed more LUNA to stay alive. token supply exploded from hundreds of millions ot trillions.
LUNA fell from around $80 to almost $0.
Bitcoin and other major cryptocurrencies were affected. It was a classic contagion cascade that hit leveraged, interconnected lending, and high-risk yield strategies especially hard.
By mid-May, the Terra blockchain had collapsed, and its flagship tokens had failed, destroying nearly $50 billion in value.
Major crypto hedge funds like Three Arrows Capital (3AC) and Voyager Fund were forced into liquidation or bankruptcy.
Yield/lending platform Celsius also filed for bankruptcy in July 2022; many others would soon follow suit.
Criminal Conviction
Very shortly after, co-founder Do Kwon was a wanted man. And after a brief manhunt and complications with his extradition to the U.S., he was sentenced in 2024 to 15 years for fraud and manipulation.
U.S. authorities determined that he had made specific and false statements regarding the technology, as well as undisclosed interventions to prop up UST’s $1 peg.
Ultimately, he had misled investors and admitted as much.
Furthermore, Kwon and Terraform Labs had also repeatedly stated that Korean payment app Chai was using Terra to process and settle real customer transactions.
This, they claimed, was generating fee revenues and organic token demand.
However, Chai was using regular banks. Instead, Terraform was spoofing the transaction data onto the Terra blockchain after the fact.
They had created a completely false image of the ecosystem’s adoption and growth.
In January 2024, Terraform filed for bankruptcy and was found liable for defrauding investors. The firm paid the U.S. Securities and Exchange Commission (SEC) a $4.47 billion settlement.
Lessons Learned
The collapse of Terra was a harsh lesson for the industry and crypto markets as a whole.
- Regulation: The collapse accelerated regulatory efforts around the world, which now emphasize reserves, transparency, and redeemability.
- Confidence: It’s a fragile thing, and algorithmic stablecoins are a massive leap of faith that demand continuous belief in the system. Once belief is broken, their very design can accelerate decline.
- High yields mask risk: Attractive returns can fuel growth but also concentrate large amounts of capital in vulnerable structures.
- Reserves matter: Transparent, high-quality reserve-backed stablecoins have, so far, proven to be more resilient than those that rely on codes and incentives.
- Contagion: UST’s failure damaged multiple projects and stained market confidence.
The Future of Algorithmic Stablecoins
Since Terra’s historic meltdown, algorithmic stablecoins are now met with skepticism.
UST’s failure was also that of other algorithmic stablecoins that followed its design, such as DEUS Finance (DEI). In 2022, many others depegged and failed due to their own unique bugs and exploits.
Experimentation is ongoing as projects look to nuanced and hybrid models, such as partially collateralized ones, that can support a resilient algorithmic stablecoin.
The market’s confidence has shifted toward fiat-backed and over-collateralized stablecoins, especially those that frequently demonstrate their reserves.
In the years that followed, regulators have drawn up legislation requiring greater transparency, quality of reserves, and risk management from stablecoin issuers.
The algorithmic stablecoin has been relegated to the fringe within the blockchain and crypto sphere.
Terra Luna’s collapse was a defining moment for crypto and stablecoins.
Unfortunately, it revealed how quickly the algorithmic design can crumble once confidence is broken. Not to mention the devastating consequences it had for the market overall.
