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  • Writer's picturePeak Frameworks Team

What is a Short Squeeze?

Short Selling is an investment strategy where investors sell borrowed shares, anticipating the price will drop and they can buy them back at a lower cost, making a profit from the difference.

Short selling can be a profitable strategy, but it's inherently risky as potential losses are theoretically unlimited.

Understanding the Basics

What is a Short Squeeze
Source: Wallstreet Mojo

A Short Squeeze occurs when a heavily shorted stock's price suddenly rises sharply. This rise forces short sellers to buy the stock back (cover their positions) to avoid further losses, causing a demand surge that pushes the price even higher.

The Mechanics of a Short Squeeze

Short Squeezes are usually triggered by positive news or trends that lead to an increase in a stock's price. This might include unexpected earnings growth, a new product launch, or broader bullish market sentiment.

When short sellers begin buying back shares to cover their positions, a cascading effect ensues. As more shares are bought, the price rises, triggering more short sellers to cover their positions, thereby accelerating the price surge.

Short Squeeze Process
Source: The Motley Fool

For instance, let's recall the Volkswagen Short Squeeze of 2008. Porsche's announcement that it increased its stake in Volkswagen triggered the squeeze. As the share price soared, short sellers had to buy back shares at significantly higher prices, further driving up the stock price.

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Identifying Potential Short Squeezes

Identifying potential short squeezes is a multi-dimensional process that involves the examination of several key factors. To thoroughly understand these factors, let's dive deeper:

High Short Interest Ratio

The short interest ratio, also known as the "days-to-cover" ratio, is a key metric that may indicate the potential for a short squeeze. It is calculated by dividing the number of shares currently shorted by the average daily trading volume of the stock. A higher ratio implies that it will take a greater number of days for all short sellers to cover their positions, given the current average volume.

A high short-interest ratio suggests that the stock may be oversold and that a significant price increase could be on the horizon. However, a high short-interest ratio on its own is not a definitive sign of an imminent short squeeze. It should be used in conjunction with other indicators for a more accurate prediction.

Low Float Stocks

The term "float" refers to the number of shares of a particular company that is freely available for trading by the public. A low float implies that there are a relatively small number of shares available for trading. In such situations, any significant change in demand (such as a sudden surge of buying interest) can disproportionately affect the stock price.

Stocks with a low float are often more volatile and more susceptible to price manipulation. Therefore, they are more likely to experience short squeezes. However, a low float on its own does not guarantee a short squeeze will occur. Other factors, like market sentiment and news about the company, will also play significant roles.

Positive News and Market Sentiment

Short squeezes often get triggered when there's unexpected positive news about the company or the industry it operates. This could include stronger-than-expected earnings reports, a new product launch, regulatory approvals, or even rumors about potential mergers and acquisitions.

On the other hand, collective market sentiment plays a critical role. The GameStop saga, for instance, was fueled by bullish sentiment among a large group of retail investors on the Reddit community r/WallStreetBets. Their collective buying spree drove the price up, triggering a massive short squeeze.

Short Squeeze table
Source: Cheddar Flow

Stock Lending Data

Stock lending data can provide insights into the cost of borrowing shares for short selling and how many shares are currently on loan. A rise in borrowing costs and the amount of shares on loan may signal a potential short squeeze. If borrowing becomes more expensive and fewer shares are available to loan, short sellers may be forced to close their positions, potentially triggering a squeeze.

The Implications of Short Squeezes

Short Squeezes can create dramatic market movements. They not only affect investors involved in the short positions but also create ripple effects throughout the market.

The GameStop Short Squeeze led to significant losses for hedge funds and amplified discussions around market manipulation, sparking regulatory scrutiny.

Such incidents emphasize the importance of risk management and ethical considerations in finance.


Short Squeezes, while complex, can be navigated effectively with the right knowledge and tools. As finance professionals, we must understand these market mechanisms to safeguard our interests and foster ethical trading practices.


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