Short squeeze meaning
A short squeeze is a rapid price rise that forces traders who sold short to buy back their positions, and that buying pushes the price higher still.
To sell short means to open a position that gains when the price falls. To cover means to close that short position by buying.
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Formal definition
In the strict sense, a short squeeze is a price move upward caused mainly by short covering rather than by new buyers. The covering can be:
- Voluntary: traders close shorts or their stop-loss orders trigger.
- Forced: a margin call, a broker stop-out, or, in cash equities, a recall of borrowed shares or a buy-in by the lender.
Every cover is a buy order. When many shorts cover at once, the buying feeds on itself.
What is a short squeeze in practice: a worked example
This is a hypothetical case with no real prices.
- Company X's stock has heavy short interest. A large part of its free float is sold short, and borrowing the shares is expensive.
- Unexpected good news comes out, and the price gaps up at the open.
- Short sellers' losses grow and their account equity falls. Some hit stop-losses. Others get margin calls.
- Stop-outs close positions automatically with market buy orders. Those orders lift the price further and trigger the next group of stops.
- Once most shorts have covered, the forced buying stops. The price often falls back, sometimes sharply.
To see how a gap against a short position affects margin and equity with your own figures, use the tools on Calculators.
Leveraged CFD and forex positions can lose money fast in a squeeze. Prices can jump past stop-loss levels, so a stop does not guarantee a maximum loss. See Risk management.
Where the term appears
- News and market reports: headlines such as "shorts squeezed" or "short-covering rally", usually about single stocks, stock indices or crypto.
- Short interest data: exchanges and data vendors publish short interest as a share of free float. They also publish days to cover, which is short interest divided by average daily volume.
- Positioning reports: futures positioning data shows crowded shorts in currencies and commodities.
- Platforms: in MetaTrader, a squeeze looks like long, fast candles upward. Your account history may show positions closed by stop-out. On crypto venues the same event is reported as "short liquidations".
Edge cases
- Gamma squeeze: dealers who sold call options buy the underlying to hedge as the price and delta rise. The effect looks similar, but the buyers are hedgers, not shorts.
- Forex: currencies cannot be borrowed and recalled like shares. A "squeeze" in forex means crowded short positioning being unwound quickly.
- Rally or squeeze: a rally built on new buying can last. A squeeze usually ends when covering ends.
- Halts: extreme moves can trigger a circuit breaker.
Related terms
Free float · Exposure · Collateral · Dead cat bounce · Capitulation · Flash crash · Contrarian investing · Dealer · Trading glossary
Frequent questions
What is a short squeeze in simple words?
The price rises fast and short sellers are pushed to buy back. Their buying makes the price rise even more.
What are typical short squeeze examples?
Heavily shorted single stocks after surprise news, crowded short trades in a currency, and short liquidation waves in crypto.
Can a short squeeze be predicted?
High short interest and high borrowing costs show that a squeeze is possible. They do not tell you that one will happen or when. This page gives no forecasts.
Does a squeeze affect CFD traders who are short?
Yes. A fast rise reduces equity, can lead to a margin call or stop-out, and can produce losses larger than planned when prices gap.