What Is Free Float?

What free float means and why it matters for a stock's price and trading.

INVESTING MADE EASY

Inaaya Ashar

8/5/20242 min read

A hand pointing at a smartphone displaying currency quotes against a laptop
A hand pointing at a smartphone displaying currency quotes against a laptop

Introduction

When people talk about how many shares a company has, they usually mean shares outstanding. But not all of those shares are actually available for regular investors to trade. The shares that are available make up the free float.

What Is Free Float?

Free float is the number of a company's shares that are available for public trading. It excludes shares held by insiders like founders and executives, governments, and other long-term holders who are unlikely to sell. For example, if a company has 100 million shares but founders own 40 million, the free float is about 60 million.

Why It Matters

Free float affects how easily a stock can be bought and sold. Stocks with a small free float can be more volatile because fewer shares are trading, so big orders can move the price more. Stocks with a large free float usually trade more smoothly.

Free Float and Indexes

Major indexes like the S&P 500 use float-adjusted market capitalization to decide how much weight each company gets. This means a company with a large share held by insiders gets a smaller weight in the index than its total market value would suggest.

Conclusion

Free float is a small detail that reveals a lot about how a stock trades. Understanding it helps you think more clearly about risk and volatility!