What is a Stablecoin?
Stablecoins are crypto tokens designed to hold a steady price — usually pegged to $1. They're the dollars of crypto.
A stablecoin is a cryptocurrency designed to hold a stable value relative to a fiat currency, usually the US dollar. The most common stablecoins (USDT, USDC, DAI) target a 1:1 peg with the dollar.
Why they exist: crypto prices swing wildly. If you want to take profit or sit on the sidelines without going back to a bank, you need something stable. Stablecoins fill that role and now process trillions in annual volume — they're the most-used product in all of crypto.
Three main types:
1. Fiat-collateralized (USDT, USDC) — Backed 1:1 by dollars (or short-term US Treasuries) held in custody by the issuer. Simple model, depends on trusting the issuer and their reserves.
2. Crypto-collateralized (DAI) — Backed by over-collateralized crypto deposits in smart contracts. More decentralized but more complex.
3. Algorithmic (Terra/UST — collapsed in 2022) — Use code-driven mechanisms to maintain the peg. Have a poor track record; mostly avoid.
Practical uses:
- Parking profits without going to fiat - Earning yield (5–10% APY on platforms like Aave) - Sending money internationally (cheaper and faster than wires) - Trading pairs on every exchange
Risks to know:
- Peg de-pegs. USDC briefly depegged to $0.88 during the Silicon Valley Bank crisis in March 2023. - Regulatory action. Tether (USDT) has faced ongoing scrutiny over its reserves. - Centralized blacklisting. Both USDT and USDC can be frozen at specific addresses by the issuer.