Float

What Is Float?

In stock market terms, float is the portion of a company's shares that the public can actually buy and sell. It is usually smaller than the total number of outstanding shares, because shares held by founders, executives, employees, governments or other strategic holders are often restricted or closely held and are not traded freely. Data providers and screening tools report float so investors can see how much stock is realistically available to trade.

How Float Is Calculated

Float is generally found by subtracting restricted and closely held shares from total shares outstanding:

Float = Total Shares Outstanding − Restricted and Closely Held Shares

The result is an estimate. Companies do not always disclose the same details, and different data providers may use different methods, so the same stock can show slightly different float figures across sources.

Why Float Matters to Investors

Float can influence how a stock trades. A company with a small float may see larger price swings, because fewer shares are available and a modest amount of buying or selling can move the price more. Lower float can also mean reduced liquidity, so it may take longer to trade a large position without affecting the price, and the bid-ask spread may be wider.

Float is also used when reviewing short interest. Analysts often compare borrowed shares sold short against the float, since a high proportion of short interest relative to float is one of the metrics that analysts track.

Float in Insurance

The word has a separate meaning in insurance. There, float refers to premium money an insurer holds before it pays claims. Insurers can often invest this money in the meantime, so the insurance usage is unrelated to the stock market concept and the two should not be confused.