Market mechanics
How does short interest accumulate and what structural elements trigger a short squeeze?
By Easy Money Scanner · Educational reference · Not investment advice
The short answer
Short interest is the total number of shares sold short and not yet covered; a short squeeze occurs when rising prices force short sellers to buy back shares, further accelerating the price increase.
How it works
High short interest relative to float, combined with a bullish catalyst or low borrow availability, can create a feedback loop where forced short covering drives rapid, self-reinforcing price spikes.
An example
A stock with 40% of its float sold short that jumps on positive news can trigger panicked short covering, pushing the price up dramatically in days.
Risk & limitations
Short squeezes are unpredictable and can reverse just as violently; chasing a squeeze late often means buying near its peak.
Examples are hypothetical, not trade recommendations. US contract and regulatory references do not automatically apply in Canada. Rules, margin requirements and broker policies can change; confirm them with the relevant authority and your broker.