Short

A short (or “short selling”) is a trading strategy designed to profit when a cryptocurrency’s price declines. Instead of buying first and selling later, a trader sells first, then aims to buy back later at a lower price, returning the borrowed asset and keeping the difference, minus fees.

In a classic short sale, a trader borrows a crypto asset, such as BTC, from a broker or lending pool and immediately sells it on the market. If the price drops, the trader buys back the same amount of BTC at the lower price and returns it to the lender. The trader’s potential profit is the gap between the initial sell price and the later buy price, after accounting for borrowing costs and trading fees.

Crypto shorting is commonly tied to margin, meaning the trader posts collateral, often stablecoins, to support the borrowed position. Because crypto markets can move quickly, exchanges typically require positions to maintain certain collateral levels; if losses grow and collateral becomes insufficient, the position can be liquidated.

Many traders short via derivatives like perpetual swaps or futures, where the position tracks the asset’s price without borrowing the spot asset directly. Others short through margin trading on centralized exchanges, or by borrowing via DeFi money markets and selling on-chain.

Shorting carries distinctive risks. Losses can be theoretically unlimited because an asset’s price can keep rising. Traders may also face ongoing costs such as borrow interest or perpetual funding payments. A “short squeeze” can occur when rising prices force short sellers to buy back, accelerating the rally and increasing losses.

Shorting adds tools for hedging and risk management, for example, miners or long-term holders may short to offset downside risk. It can also improve market efficiency by enabling price discovery, but it increases complexity and can amplify volatility through liquidations and squeezes.