Float

The number of a company's shares that are freely available for public trading, excluding shares held by insiders, major institutions under lock-up, and the company itself.

Float is the portion of total shares outstanding that the public can actually buy and sell. It excludes shares held by company founders, executives, directors, and major insiders (who face trading restrictions), shares locked up in employee equity plans, and treasury shares the company has bought back. A company with 100 million shares outstanding but 40 million held by insiders has a float of 60 million shares.

Float size matters significantly for trading dynamics. Low-float stocks — those with relatively few freely tradable shares — can move dramatically on relatively small buying or selling pressure because there aren't many shares available to absorb demand. Meme stocks and short squeezes often target low-float companies precisely because a moderate increase in buying demand can cause an outsized price move.

Institutional investors and index funds generally prefer high-float stocks because they need to build large positions without significantly moving the price. Some index providers use "float-adjusted" market cap to weight index constituents, giving lower weight to companies where most shares are locked up and unavailable for public trading.

This definition is for informational and educational purposes only. Nothing on Finance Compass constitutes financial, investment, or trading advice. Always conduct your own research and consult a qualified professional before making financial decisions.