Stock Float: Definition and Importance

Understanding the Stock Float: Definition and Importance

What is the Stock Float?

Before delving into the importance of stock float, it’s imperative to grasp the fundamental concept. In simplest terms, the stock float, also known as the “floating shares” or “public float,” refers to the number of shares of a company’s stock that are available for trading in the public market. These shares are not held by insiders, institutional investors, or restricted for various reasons. Instead, they are accessible to regular investors and traders.

The stock float is a significant metric as it provides insights into the liquidity and marketability of a company’s shares. It’s calculated by subtracting the restricted shares, those held by insiders, and shares not available for trading from the total outstanding shares.

Floating Stock Formula
Floating Stock Formula

Types of Shares

Common Shares

Common shares, also known as ordinary shares, are the most prevalent type of equity ownership in a company. Holders of common shares possess voting rights and have the potential to receive dividends. Common shares are often the ones included in the stock float, influencing the company’s market performance.

Preferred Shares

Unlike common shares, preferred shares usually do not have voting rights, but they do have a higher claim on assets and earnings. These shares typically offer fixed dividends and are considered less volatile. However, they are not typically included in the stock float due to their limited tradability.

The Significance of Stock Float

The stock float plays a crucial role in shaping the dynamics of the stock market and influencing the behavior of traders and investors alike. Its significance extends to various aspects of trading and investment strategies.

Impact on Price Volatility

Stocks with a smaller float tend to experience higher volatility in their prices. This is because a relatively small number of shares available for trading can lead to more significant price fluctuations when demand or supply changes. Conversely, stocks with larger floats often exhibit more stable price movements.

Role in Market Manipulation

Low-float stocks are susceptible to market manipulation due to their limited availability. Unscrupulous actors can artificially inflate or deflate the stock price by trading a relatively small number of shares, creating a false impression of market sentiment.

Calculating the Stock Float

Calculating the stock float involves subtracting the closely held shares, such as those owned by insiders, executives, and institutional investors, from the total outstanding shares. The resulting figure represents the shares available for trading in the open market.

Difference between Stock Float and Market Capitalization

While stock float refers to the tradable shares available in the market, market capitalization is the total value of a company’s outstanding shares, regardless of their tradability. Market cap takes into account both the floated shares and closely held shares.

Factors Affecting Stock Float

Several factors can influence the size of a stock’s float and subsequently impact its trading dynamics.

Insider Lock-up Periods

Insider lock-up periods restrict certain shareholders, often company insiders, from selling their shares immediately after an initial public offering (IPO). This can temporarily limit the stock float and affect supply and demand.

Secondary Offerings

When a company issues additional shares after the IPO, it can increase the stock float. Secondary offerings provide more shares for trading and can impact the stock’s price and volatility.

Stock Buybacks and their Influence on Float

Companies engage in stock buyback programs to repurchase their own shares from the market. This reduces the number of outstanding shares and, in turn, increases the proportion of the float, potentially affecting stock prices.

How Traders Use Float Information

Traders utilize information about a stock’s float to make informed decisions and develop trading strategies.

Short Interest Ratio

The short interest ratio compares the number of shorted shares to the stock’s float. A high short interest ratio could indicate potential upward pressure on the stock’s price if short sellers need to cover their positions.

Identifying Potential Breakouts

Traders look for stocks with low floats that are exhibiting increasing trading volumes. This combination could indicate the potential for a breakout, as demand for the limited float drives up prices.

Real-Life Examples of Stock Float Impact

Understanding the real-life impact of stock float on market behavior can provide valuable insights into its significance. Let’s explore a couple of notable examples:

Case Study 1: Tesla’s Volatility

Tesla, the electric car manufacturer, has been a prime example of how stock float can influence price volatility. With a relatively low stock float compared to its market capitalization, any significant news or market sentiment can lead to dramatic price swings. The limited availability of shares for trading intensifies these movements, making Tesla a favorite among both day traders and long-term investors closely monitoring its float-related dynamics.

Case Study 2: GameStop’s Short Squeeze

The GameStop saga of early 2021 showcased how stock float can be exploited by retail investors to trigger a short squeeze. A group of Reddit users identified stocks with high short interest ratios and low floats, including GameStop. By collectively buying and holding shares, they drove up the stock price, forcing short sellers to cover their positions. The limited availability of shares amplified the price surge, highlighting how stock float can contribute to sudden and substantial price movements.

Float vs. Liquidity

While stock float and liquidity are related concepts, they are not synonymous. Stock float refers to the number of tradable shares available in the market, whereas liquidity encompasses the ease of buying or selling those shares without significantly impacting their prices. A stock with a higher float may not necessarily be more liquid if there’s low trading volume. Liquidity considers both the float size and trading activity.

Investor Considerations with Low vs. High Float Stocks

Investors need to weigh the pros and cons of investing in low and high float stocks based on their risk tolerance and investment goals.

Low Float Stocks: Investing in low float stocks can offer the potential for rapid price movements, making them appealing to active traders and those seeking short-term gains. However, these stocks are more susceptible to manipulation and can result in higher volatility, which may not align with the strategies of more conservative investors.

High Float Stocks: High float stocks often exhibit more stable price trends due to the larger number of shares available for trading. This can be advantageous for long-term investors seeking more predictable returns. Additionally, these stocks are less likely to be manipulated, offering a more secure investment environment.

Strategies for Capitalizing on Float Changes

Traders often utilize different strategies to capitalize on changes in stock float, depending on their risk appetite and trading style.

Swing Trading

Swing traders take advantage of short- to medium-term price movements. They may target stocks with changing floats, as sudden fluctuations can provide opportunities to enter or exit positions. By staying informed about events affecting a company’s float, swing traders position themselves to make timely decisions.

Long-Term Investing

Long-term investors typically focus on high float stocks due to their stability and lower volatility. These stocks are more likely to follow fundamental trends over time, aligning with a buy-and-hold investment strategy. Long-term investors consider the company’s financial health and growth prospects beyond short-term float-related movements.


What exactly is stock float, and why does it matter?

Stock float refers to the number of shares available for trading in the open market. It matters because it affects stock liquidity, price volatility, and ownership distribution, all of which impact investment decisions.

How is stock float calculated?

Stock float is calculated by subtracting restricted shares from total outstanding shares. The resulting number represents the shares available for public trading.

Can stock float change over time?

Yes, stock float can change due to factors like share buybacks, new issuances, and changes in ownership structure.

Are low float stocks riskier to invest in?

Low float stocks can be riskier due to higher price volatility and susceptibility to price manipulation, but they can also offer significant opportunities for profit.

How can I use stock float information for my investment strategy?

You can tailor your strategy based on the stock’s float. For instance, low float stocks might suit short-term trading, while high float stocks might align with long-term investment goals.

Is stock float the only factor to consider when investing?

No, stock float should be considered alongside other factors like company fundamentals, industry trends, and market conditions for a comprehensive investment approach.

Share this article
Shareable URL
Prev Post

The Difference Between Outstanding Shares and Stock Float

Next Post

A Beginner’s Guide to Understanding Outstanding Shares

Leave a Reply

Your email address will not be published. Required fields are marked *

Read next

What is a 10-K Wrap?

In the world of financial reporting, the 10-K Wrap is a revolutionary tool that offers a new dimension of…
What is a 10-K Wrap

Invest in these stocks right now!

Popup demo

Invest now!

Demo pop-up for Crypto

Seraphinite AcceleratorOptimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.