Short
In simple terms
A bet that a cryptocurrency's price will drop. You borrow coins from someone, sell them at the current price, and hope to buy them back cheaper later so you can return them and keep the profit.
Definition
Betting that price will go down by borrowing and selling an asset.
In depth
A trading strategy where an investor borrows an asset from a lender (typically through a margin account or lending protocol), immediately sells it at the current market price, and profits if the price decreases. The trader must eventually repurchase the same quantity of the asset at a lower price to repay the lender, keeping the price difference as profit minus fees and interest. Short positions are common on centralized exchanges via margin trading and on decentralized protocols through lending mechanisms, but carry unlimited loss potential if prices rise instead.
How does Short work?
A short is the reverse of a long: it gains when the price falls. The classic mechanism is borrow-and-sell — a trader borrows the asset from a lender or exchange, sells it immediately at the current price, and must later buy the same quantity back to return it, keeping or absorbing the difference. Borrowing carries interest for as long as the position stays open. Most crypto shorting now happens through perpetual futures instead, where no asset is borrowed; the trader posts collateral and takes the opposite side of a contract, with the same liquidation risk if the price rises.
An example
Illustrative figures. A trader borrows 1 coin and sells it at $30,000. If it can later be repurchased at $24,000, the trader returns the coin and keeps $6,000 before borrowing fees. If instead the price reaches $39,000, buying it back costs $39,000 and the loss is $9,000 — larger than the amount received at the outset. A long's loss stops at zero; a short's has no fixed ceiling.
Figures are illustrative only.
What beginners get wrong
- The maximum loss on a short is not the amount staked; because price has no upper bound, losses can exceed the money originally received.
- Borrow interest and perpetual funding accumulate daily, so a short that is directionally correct but slow can still finish at a loss.
- Shorting simply because an asset has risen a long way treats a rise as evidence that a fall is due, which it is not.
- Lenders can recall borrowed coins and exchanges can raise margin requirements, forcing a short to close at whatever price is available.
Related terms
Part of
How does crypto trading and market structure work? — the subject page for trading and market structure, with all 27 of its definitions in one place.
Educational only — not financial advice.