Free Float Calculator

Free float measures the portion of a corporation's stock that is readily available for public trading in the open market. To determine this figure, our calculator uses two primary formulas. First, the absolute free float quantity is derived by taking the total outstanding shares and subtracting both restricted shares and closely held shares: Free Float = Outstanding Shares - Restricted Shares - Closely Held Shares. Second, the free float percentage reveals the proportion of tradable shares relative to the total share pool: Free Float Percentage = Free Float / Outstanding Shares. This percentage is crucial for index weightings and assessing overall market depth.

Imagine you are analyzing TechNova Inc., a fictional corporation evaluating its market liquidity. TechNova reports 10,000,000 total outstanding shares. Through regulatory filings, you discover there are 2,000,000 restricted shares held by insiders under lock-up agreements, and an additional 1,000,000 closely held shares owned by strategic founders. To find the free float, subtract these restricted and closely held blocks from the total: 10,000,000 minus 2,000,000 minus 1,000,000 equals 7,000,000 free float shares. Next, divide this 7,000,000 free float by the 10,000,000 outstanding shares to get 0.70, or a 70% free float percentage. This indicates that seventy percent of TechNova's equity is actively circulating on public exchanges.

Always verify the current status of lock-up periods, as expired restrictions can suddenly convert restricted shares into free float and alter market supply dynamics. Keep in mind that a low free float often correlates with higher intraday volatility because large buy or sell orders can sharply move the share price. Finally, check index inclusion criteria, as many major stock indices require specific minimum free float thresholds before adding a company to their benchmarks.