Zions Bancorporation, National Association currently has issued a total of 164,214,000 shares. Some of Zions Bancorporation, National Association's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Zions Bancorporation, National Association currently has a public float of 161,790,000 shares.