Stablecoins Explained: The Backbone of the Crypto Economy

Why Stablecoins Matter

With $150B+ market cap, stablecoins facilitate the majority of crypto trading, DeFi lending, and cross-border payments. They're the plumbing of the ecosystem.

Types

Fiat-Backed (USDT, USDC): 1:1 backed by USD in bank accounts. Centralized — issuers can freeze addresses.

Crypto-Collateralized (DAI): Over-collateralized with crypto in smart contracts. Decentralized, censorship-resistant, but capital inefficient.

Algorithmic (historical UST): Use algorithms to maintain peg without full backing. UST/Terra's $40B collapse in 2022 showed the risks. No undercollateralized algo stablecoin has survived severe stress.

Safety Evaluation

1. Reserve transparency (real-time proof vs periodic audit)
2. Peg stability during market crashes
3. Redemption mechanism (speed, minimums)
4. Regulatory status
5. Smart contract audit history

Yield on Stablecoins

• DeFi lending (Aave): 3-8% APY
• LP provision (Curve): 2-15% APY
• Tokenized Treasuries (Ondo): 4-5% APY

Rule: If yield exceeds Treasury rate by a wide margin, there's hidden risk.

Practical advice: Diversify holdings. Mix of USDC + USDT + DAI reduces single-point-of-failure risk.