Fiat

Fiat refers to any government-issued currency that is not backed by a physical commodity such as gold or silver. Examples of fiat currencies include the US dollar, the Euro, the Japanese yen, and the British pound. These currencies derive their value from government regulation, legal tender laws, and the trust that people place in the issuing authority. Unlike commodity-backed money, fiat currencies can be printed in theoretically unlimited quantities, which is why central bank policy and inflation are such closely watched factors in global financial markets.

In the context of cryptocurrency, fiat is typically the entry and exit point for most participants. Traders convert fiat into crypto when entering the market and back into fiat when they want to realize gains or exit positions. Stablecoins — cryptocurrencies pegged to the value of fiat currencies like USDT pegged to the USD — serve as a bridge between the crypto world and fiat, allowing traders to hold a stable value on-chain without converting back to traditional banking.

The relationship between fiat and crypto is an important dynamic in market analysis. Macroeconomic factors that affect fiat currencies — such as interest rate decisions, inflation data, and currency strength — can significantly influence crypto prices, particularly Bitcoin and Ethereum, which are increasingly viewed as alternative stores of value. For algorithmic traders, tracking fiat-denominated metrics and understanding the broader monetary environment helps add macroeconomic context to trading strategies.