free float

Short definition from Wiktionary

Noun

1. 1
   An estimate of the proportion of shares of a public company that are not held by large owners and that are not stock with sales restrictions.
2. 2
   A floating rate of exchange rate under which the currency's value is allowed to fluctuate in response to foreign-exchange market mechanisms without government intervention.

Verb

1. 1
   to alter a firearm so that no part of the barrel touches the stock.