Pegged Currency
What Is a Pegged Currency?
A pegged currency is a currency whose value is fixed or closely tied to another asset, such as a foreign currency, commodity, or basket of assets. The peg is designed to keep the currency’s price stable relative to its reference asset. In traditional finance, this is often achieved through monetary policy and reserves managed by a central authority.
To keep a peg from breaking, a central authority must constantly balance the supply of their currency. If the price starts to drop, the central bank uses its foreign reserves to buy back its own money from the market, which reduces supply and pushes the price back up. This only works as long as the bank has enough reserves to keep buying. If investors believe the bank is running out of cash or gold, they may start selling the currency rapidly, creating pressure that can force the peg to collapse.
One famous example was Black Wednesday in 1992, when the United Kingdom was forced to withdraw the British pound from the European Exchange Rate Mechanism (ERM). The UK government attempted to maintain a fixed exchange rate between the pound and the Deutsche Mark, but heavy speculative pressure led to massive reserve spending and emergency interest rate hikes. Ultimately, the peg could not be sustained, and the pound was devalued after exiting the ERM.
In the crypto space, pegged currencies are most commonly seen in the form of stablecoins, which are usually pegged to fiat currencies like the US dollar. These pegs are maintained through different mechanisms, including fiat reserves, crypto collateral, or algorithmic controls. The goal is to reduce price volatility and make the currency more suitable for payments, transfers, and savings.
A pegged currency may temporarily deviate from its target value due to market conditions, liquidity issues, or changes in confidence. Maintaining a reliable peg is critical for usability and trust.
KAST supports established pegged currencies like USDT and USDC, helping users maintain predictable value when transferring and spending digital assets without sharp price swings.
