Item 8.01 Other Events

On July 20, 2009, holders of three series of Zions Bancorporation subordinated notes that are convertible into the company's Series A or Series C preferred stock converted $27.3 million principal amount of the notes into 1,092,960 depositary shares each representing a 1/40th interest in a share of Series C preferred stock (representing 27,324 shares of Series C preferred stock in the aggregate). No note holders elected to convert into Series A preferred stock. The converted notes constitute approximately 2.3% of the original $1.17 billion principal amount of the convertible subordinated notes.

Hereafter, the conversion dates for the convertible subordinated notes occur only on semi-annual interest payment dates. The next such dates are:
· September 15, 2009 for convertible 6.00% notes due on September 15, 2015;

· November 15, 2009 for convertible 5.65% notes due on May 15, 2014;

· November 16, 2009 for convertible 5.50% notes due on November 16, 2015.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ZIONS BANCORPORATION

Date: July 30, 2009 By: /s/ THOMAS E. LAURSEN Name: Thomas E. Laursen Title: Executive Vice President and General Counsel