Tether Earned $1.5 Billion in a Quarter, Yet Its Safety Cushion Was Cut in Half: Two Numbers, Same Quarter, Telling Completely Different Stories

An algorithmic <a href="https://crypto-bible.com/en/glossary/defi-basics/stablecoin/" target="_blank">Stablecoin</a> uses code and incentive mechanisms — rather than real asset reserves — to maintain its price peg. When price rises above the peg, the protocol mints new tokens to dilute supply; when price falls below, it buys back or burns tokens to contract supply, theoretically returning the price to target. The core assumption: 'as long as market participants believe the mechanism works, the system sustains itself.' But this assumption often fails under extreme stress, triggering death-spiral collapses. The 2022 UST collapse is the most destructive failure case to date, and has left markets and regulators highly skeptical about the viability of pure algorithmic stablecoins.

An algorithmic <a href="https://crypto-bible.com/en/glossary/defi-basics/stablecoin/" target="_blank">Stablecoin</a> is a stablecoin design that maintains its $1 peg through code and market incentive mechanisms rather than real dollar or crypto asset reserves. The most representative case is UST (Terra), which paired with LUNA tokens and attempted to maintain the peg through <a href="https://crypto-bible.com/en/glossary/trading-concepts/arbitrage/" target="_blank">Arbitrage</a> mechanics — minting when UST > $1, burning when UST < $1. In May 2022, UST collapsed from $1 to near zero within days, causing approximately $40 billion in losses. This event fundamentally questioned the viability of 'pure algorithmic stablecoins,' and subsequent regulatory frameworks like MiCA and GENIUS Act require stablecoins to have real reserves.

Death spiral is the self-reinforcing collapse loop that algorithmic stablecoins can enter after de-pegging: <a href="https://crypto-bible.com/en/glossary/defi-basics/stablecoin/" target="_blank">Stablecoin</a> price falls → holders panic-redeem → paired token gets massively minted to maintain the peg → paired token collapses from inflation → stablecoin loses further confidence → more selling… until the entire system reaches zero. The core problem is that the mechanism meant to maintain the peg actually accelerates the collapse under stress. The 2022 Terra/UST collapse is the most destructive death spiral case to date, with approximately $40 billion in market cap evaporating within a week.