Crypto

Stablecoins: coins that stay at $1

Most coins jump around. Stablecoins are built to stay at $1. Here is how, and why traders use them.

Updated Oct 31, 2026

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What is a stablecoin?

A coin made to always be worth about $1. The best known are USDT (Tether) and USDC.

You holdWorth
1 USDTabout $1
500 USDCabout $500

How does it stay at $1?

The company that makes it keeps about $1 in reserve for every coin, in cash and similar safe savings. So each coin can be swapped back for a dollar.

1,000,000 USDC exist
→ the company holds about $1,000,000 in reserve

What do people use them for?

  • Parking money between trades without leaving crypto.
  • Moving money between exchanges quickly.
  • Pricing other coins: many exchanges price Bitcoin in USDT (BTC/USDT).
You sell $500 of Bitcoin into USDTBitcoin then falls 10%
Kept as Bitcoinnow $450
Kept as USDTstill $500

Can a stablecoin lose its $1?

Yes. If people doubt the reserves, they rush to sell and the price can slip below $1. This is called a de-peg.

A stablecoin slips toYour 1,000 coins are worth
$0.99$990
$0.95$950
$0.88$880
  • In March 2023, USDC briefly fell to about 88 cents when a bank holding part of its reserves failed. It came back to $1 within days.
  • In May 2022, TerraUSD, a stablecoin with no real reserves, collapsed to almost nothing.

"Stable" means designed to stay at $1, not guaranteed to.

How does Tradeground use stablecoins?

Your Tradeground wallet is in US dollars. Coin prices come from Binance in USDT, and Tradeground counts 1 USDT as $1.