A short squeeze occurs when rising prices induce short-position holders to buy back exposure, reinforcing the rise. Loss control, stop orders and forced liquidation can all contribute to that buying. The initial rally may come from new information or ordinary demand; short covering can then amplify it.
Why covering creates demand
A trader who borrowed and sold an asset generally buys it back to repay the borrowing. A trader closing a short futures position buys the relevant contract instead. Those are different transactions, even though both can add buying pressure in their respective markets.
If available sell orders are limited, urgent covering may execute at successively higher prices. Other shorts then face larger losses and may also exit. Leverage can reduce the room available before margin requirements force action, but liquidation triggers and execution procedures differ by venue.
A vulnerable setup is not a timetable
Short-interest data, funding rates and liquidity can help describe positioning, but cannot guarantee a squeeze. Derivatives open interest counts contracts with both a long and a short side; a rising total alone does not prove that the market has become more bearish. Published long/short ratios may count accounts rather than equal-sized positions.
A squeeze can reverse when urgent buyers finish, or prices can remain elevated for other reasons. Buying into a suspected squeeze therefore still carries price and execution risk. Its name identifies the pressured side, not a guaranteed trade outcome.