unstable trenches 價格UST

Stablecoins are cryptocurrencies designed to maintain a stable value, typically pegged to a fiat currency like the US dollar, a commodity like gold, or a basket of assets. Unlike volatile assets such as Bitcoin, which can swing 10-20% in a day, stablecoins aim for minimal price fluctuation—often holding within 0.1% of their peg. The first major stablecoin, Tether (USDT), launched in 2014 on the Bitcoin blockchain via Omni Layer. Today, the sector exceeds $170 billion in market capitalization (as of late 2025), with over 200 variants.Types of Stablecoins Fiat-Collateralized: Backed 1:1 by reserves in bank accounts or equivalents. Examples: USDT (Tether, ~$120B cap), USDC (Circle, ~$35B cap), BUSD (formerly Binance). Audits verify reserves, though controversies (e.g., Tether's 2019 fine for misleading claims) highlight transparency risks. Crypto-Collateralized: Over-collateralized with other cryptocurrencies (e.g., 150-200% ratio) in smart contracts. DAI (MakerDAO) is the flagship, pegged to USD via Ethereum-based collateral like ETH. This decentralized model avoids fiat custody but introduces liquidation risks during market crashes. Algorithmic (Seigniorage): Maintain peg through supply adjustments via algorithms, without direct collateral. TerraUSD (UST) famously collapsed in May 2022, wiping $40B from the market due to a death spiral. Newer ones like USDD (Tron) use hybrid mechanisms but remain niche and risky. Commodity-Backed: Pegged to gold/silver (e.g., PAXG by Paxos). Less common, with ~$1B total cap. Mechanics and Use CasesStablecoins operate on blockchains like Ethereum, Tron, Solana, and Binance Smart Chain for low-cost transfers (fractions of a cent vs. $20+ for bank wires). Key roles: Trading Pairs: 70-80% of crypto exchange volume involves stablecoins (e.g., BTC/USDT), providing liquidity without exiting to fiat. Remittances: $800B annual market; stablecoins cut fees to <1% and enable instant cross-border transfers. DeFi Yield: Users lend stablecoins on platforms like Aave for 5-15% APY, far above traditional savings. Payments: Adopted by PayPal (PYUSD) and Visa for settlements. Impact on the Crypto MarketStablecoins act as a bridge between traditional finance and crypto, amplifying both growth and risks.Positive Impacts Liquidity Injection: They enable 24/7 trading without fiat on-ramps. During bull runs (e.g., 2021), USDT issuance correlated with Bitcoin highs, as new mints signal capital inflows—often $1B+ weekly. Volatility Hedge: Traders park funds in stablecoins during downturns, preventing mass exits. This stabilized the 2022 bear market, where crypto cap fell 70% but recovered faster than in 2018. Adoption Driver: Institutional entry (e.g., BlackRock's BUIDL fund using USDC) and regulatory clarity (EU's MiCA framework, 2024) have grown the sector 5x since 2020. Stablecoins now handle $10T+ in annual transfer volume, rivaling Visa. DeFi Ecosystem: They power $100B+ in locked value, enabling complex products like flash loans and derivatives. Negative Impacts and Risks Systemic Risk: Concentration in USDT (70% dominance) creates single points of failure. A depeg (e.g., USDC briefly hit $0.87 in 2023 Silicon Valley Bank crisis) can cascade—liquidating $10B+ in positions. Market Manipulation: "Printing" stablecoins has been accused of pumping prices artificially; studies show Tether mints precede BTC rallies by hours. Regulatory Scrutiny: US proposals (2025 Clarity for Payment Stablecoins Act) and global crackdowns target reserves and AML. Bans in China (2021) shifted volume but didn't eliminate them. Contagion Events: UST's failure triggered Three Arrows Capital's bankruptcy, erasing $200B from crypto in weeks. Algorithmic models remain under 1% of supply due to distrust. In summary, stablecoins have matured crypto from speculative gambling into a functional financial system, but their centralized elements import TradFi vulnerabilities. With CBDC competition rising (e.g., digital yuan), their evolution will shape crypto's next decade. Market cap growth from $5B (2019) to $170B underscores their indispensability—yet prudence demands diversified holdings and reserve vigilance.

i dont even know how to feel about this anymore tbh. stablecoins are supposed to be the most trust preserving layer in defi... yet every cycle we still see new ones get launched without learning from past failures. lunaust alone should have been enough case study to prevent half of these design mistakes. instead builders repeat the same patterns and the industry keeps paying for it. i still believe defi wins long term... but we need to start taking stablecoin architecture seriously. we cant keep going backwards every few months. gm.

8/ 🏛️ Comparisons: xUSD ≠ Terra/UST — it was asset-backed, not algorithmic. But it shared the same confidence failure: once redemption stopped, the peg vanished. Unlike USDC (SVB crisis 2023), xUSD lacked immediate redemption assurances.

all eyes 👀 on MMT/UST $1