Float Shrink

When a company reduces the number of shares available for public trading.

The most common method of float shrink is through buybacks, though there are other methods as well.

Sometimes an organization decides it would be better off financially if there were fewer shares out there in the world, so it finds ways to buy them back (this is known, creatively, as a “buyback”). Buybacks can not only increase the value of the remaining shares, but it can also provide an incentive for people to purchase the stock, if they think they’ll benefit from a buyback or something similar...like dividend payments in the future.

See: Buyback.