| Free Writing Prospectus | Filed Pursuant to Rule 433 | |
| (To the prospectus dated April 4, 2011, as supplemented by | Registration Statement No. 333-173299 | |
| the prospectus supplement dated June 18, 2012) | September 6, 2012 |
Zions bancorporation Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results Page 1 of 3 ZDTEST :: HOME :: AUCTION #6751 Results Auction Status: CLOSED Auction Start: 8/27/2012 3:00 PM EDT Auction End: 9/6/2012 1:33 PM EDT Last Update: 9/6/2012 1:35:43 PM EDT Security Type: Corporate Bonds Issue Type: Primary Coupon: 3.500% Maturity Date: 9/15/2015 Offering Documents Non-redeemable prior to September 15, 2013, then callable at par on interest payment dates thereafter. | BBB- (S&P); BBB- (Fitch); and BBB(low) (DBRS). Auction Details Bids Final Market-Clearing Yield*: 3.387% Final Market-Clearing Price: 100.105000 Bidder Units Price Yield Timestamp Awarded Principal Accrued Interest Amount Due #31867 2,000 101.000000 2.488% 9/6/2012 1:19:42 PM 2,000 units $ 2,002,100.00 $ 6,611.11 $ 2,008,711.11 #28702 100 101.000000 2.488% 9/6/2012 1:21:32 PM 100 units $ 100,105.00 $ 330.56 $ 100,435.56 #27755 20 100.987912 2.500% 8/31/2012 11:21:41 AM 20 units $ 20,021.00 $ 66.11 $ 20,087.11 #27791 5 100.987912 2.500% 8/31/2012 11:33:22 AM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31832 5 100.738012 2.750% 8/29/2012 2:31:59 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #19894 4 100.589512 2.899% 9/6/2012 11:21:55 AM 4 units $ 4,004.20 $ 13.22 $ 4,017.42 #31828 10 100.588516 2.900% 8/29/2012 2:29:06 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31833 20 100.588516 2.900% 8/29/2012 2:33:29 PM 20 units $ 20,021.00 $ 66.11 $ 20,087.11 #31836 5 100.588516 2.900% 8/29/2012 2:35:50 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31837 5 100.588516 2.900% 8/29/2012 2:36:37 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31843 10 100.588516 2.900% 8/29/2012 6:24:18 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31845 4 100.588516 2.900% 8/29/2012 6:37:07 PM 4 units $ 4,004.20 $ 13.22 $ 4,017.42 #29857 1,000 100.500000 2.989% 9/5/2012 11:18:20 AM 1,000 units $ 1,001,050.00 $ 3,305.56 $ 1,004,355.56 #28214 800 100.500000 2.989% 9/6/2012 1:29:34 PM 800 units $ 800,840.00 $ 2,644.44 $ 803,484.44 #31805 50 100.498979 2.990% 8/28/2012 5:11:32 PM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #31806 30 100.498979 2.990% 8/28/2012 5:12:15 PM 30 units $ 30,031.50 $ 99.17 $ 30,130.67 #8671 5 100.498979 2.990% 8/30/2012 2:56:30 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31864 25 100.498979 2.990% 9/4/2012 6:02:59 PM 25 units $ 25,026.25 $ 82.64 $ 25,108.89 Zions Bancorporation Senior Note / 3 Year Corporates Notice: The auction has been extended until 9/6/2012 1:33:04 PM EDT. AUCTIONS DIRECTORY ISSUERS AUCTIONS UNIVERSITY DEMOS MY ACCOUNT ABOUT PRODUCTS & SERVICES AUCTIONS BOND STORE TRADING UNIVERSITY THINK CUSTOMER SERVICE OPEN ACCOUNT LOGOUT 1.800.524.8875
Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results Page 2 of 3 #31877 2 100.498979 2.990% 9/6/2012 11:53:25 AM 2 units $ 2,002.10 $ 6.61 $ 2,008.71 #31878 1 100.498979 2.990% 9/6/2012 11:54:01 AM 1 unit $ 1,001.05 $ 3.31 $ 1,004.36 #31879 2 100.498979 2.990% 9/6/2012 11:54:37 AM 2 units $ 2,002.10 $ 6.61 $ 2,008.71 #31418 50 100.490032 2.999% 9/6/2012 12:32:53 PM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #31829 5 100.489037 3.000% 8/29/2012 2:29:42 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31830 10 100.489037 3.000% 8/29/2012 2:30:41 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31831 10 100.489037 3.000% 8/29/2012 2:31:20 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31834 5 100.489037 3.000% 8/29/2012 2:34:11 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31835 5 100.489037 3.000% 8/29/2012 2:34:59 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31838 10 100.489037 3.000% 8/29/2012 5:31:19 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31840 4 100.489037 3.000% 8/29/2012 5:38:33 PM 4 units $ 4,004.20 $ 13.22 $ 4,017.42 #31841 5 100.489037 3.000% 8/29/2012 5:39:17 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31842 5 100.489037 3.000% 8/29/2012 5:39:54 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31844 4 100.489037 3.000% 8/29/2012 6:25:04 PM 4 units $ 4,004.20 $ 13.22 $ 4,017.42 #31846 5 100.489037 3.000% 8/29/2012 6:37:55 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #31847 20 100.489037 3.000% 8/29/2012 6:38:46 PM 20 units $ 20,021.00 $ 66.11 $ 20,087.11 #11488 5 100.489037 3.000% 9/1/2012 3:46:53 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #26699 20 100.489037 3.000% 9/3/2012 5:58:21 PM 20 units $ 20,021.00 $ 66.11 $ 20,087.11 #31870 50 100.489037 3.000% 9/6/2012 10:34:24 AM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #31871 50 100.489037 3.000% 9/6/2012 10:35:36 AM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #31872 25 100.489037 3.000% 9/6/2012 10:36:11 AM 25 units $ 25,026.25 $ 82.64 $ 25,108.89 #31873 30 100.489037 3.000% 9/6/2012 10:36:46 AM 30 units $ 30,031.50 $ 99.17 $ 30,130.67 #31874 40 100.489037 3.000% 9/6/2012 10:37:37 AM 40 units $ 40,042.00 $ 132.22 $ 40,174.22 #31875 10 100.489037 3.000% 9/6/2012 10:52:24 AM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31880 50 100.489037 3.000% 9/6/2012 12:12:22 PM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #30297 150 100.400000 3.090% 8/27/2012 4:55:42 PM 150 units $ 150,157.50 $ 495.83 $ 150,653.33 #24582 10 100.340096 3.150% 9/6/2012 12:40:52 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #29772 500 100.310000 3.180% 9/6/2012 1:21:24 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #29859 500 100.300000 3.190% 9/6/2012 1:27:36 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #31839 10 100.290522 3.200% 8/29/2012 5:32:15 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #31811 60 100.290522 3.200% 9/6/2012 10:58:15 AM 60 units $ 60,063.00 $ 198.33 $ 60,261.33 #23436 500 100.287000 3.204% 9/6/2012 1:30:38 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 Auction Totals: 14,000 units $ 14,014,700.00 $ 46,277.89 $ 14,060,977.89
Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results Page 3 of 3 *The current Market-Clearing Yield/Final Auction Yield is calculated as Yield to Worst (YTW) which is the lowest yield of yield to maturity, yield to call, yield to put, or other yields when a bond is callable, puttable, exchangeable, or has other features. If a bond is called, put or exchanged before maturity, the bondholder only earns interest on the time that has elapsed between purchasing the bond and its early redemption. The resulting yield is less than what would have been earned had the bond been held until maturity. Page 1 of 3 Zions Bancorporation has filed a registration statement (Registration Statement No. 333-173299, including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus dated April 4, 2011 contained in that registration statement, the preliminary prospectus supplement dated June 18, 2012 and other documents Zions Bancorporation has filed with the SEC for more complete information about Zions Bancorporation and this offering. You may get these documents and other documents Zions Bancorporation has filed for free by visiting EDGAR on the SEC Web site at www.sec.gov. Our Affiliates: Investment Products: Not FDIC Insured No Bank Guarantee May Lose Value Bank Deposits and Certificates of Deposit (CDs) are FDIC Insured up to Applicable Limits Securities products and services offered by Zions Direct, Member FINRA / SIPC, a non-bank subsidiary of Zions Bank. Affiliates of Zions Bank or other issuers may purchase CDs or securities through the auction process. The market clearing yield may be lower due to the participation of an affiliate in the auction which may benefit the affiliated issuer. NEWSLETTER Get market information, auction updates, new-issue alerts, and more. It’s weekly and it’s free! Email Address OTHER PRODUCTS CONTACT US ABOUT US SITE MAP PRIVACY POLICY TERMS AND CONDITIONS Please direct questions regarding the website or bidding procedures to the Auction Administrator. You may also call our Investment Center at 800-524-8875 from 8am to Midnight Eastern Time. AmegBank of Texas CB California Bank THE COMMERCE BANK OF OREGON THE COMMERCE BANK OF WASHINGTON NATIONAL BANK NEVEDA STATE BANK VECTRA BANK ZIONS BANK POWERED BY GRANT STREET GROUP SOFTWARE THAT WORKS SECURED BY ENTRUST SSL VERIFY
Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results?sort=price&sort_direction=desc&page=2 Page 1 of 3 ZDTEST :: HOME :: AUCTION #6751 Results Auction Status: CLOSED Auction Start: 8/27/2012 3:00 PM EDT Auction End: 9/6/2012 1:33 PM EDT Last Update: 9/6/2012 1:36:12 PM EDT Security Type: Corporate Bonds Issue Type: Primary Coupon: 3.500% Maturity Date: 9/15/2015 Offering Documents Non-redeemable prior to September 15, 2013, then callable at par on interest payment dates thereafter. | BBB- (S&P); BBB- (Fitch); and BBB(low) (DBRS). Auction Details Bids Final Market-Clearing Yield*: 3.387% Final Market-Clearing Price: 100.105000 Bidder Units Price Yield Timestamp Awarded Principal Accrued Interest Amount Due #30297 250 100.270000 3.221% 8/27/2012 4:55:42 PM 250 units $ 250,262.50 $ 826.39 $ 251,088.89 #29772 500 100.260000 3.231% 9/6/2012 12:05:13 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #17916 2,000 100.260000 3.231% 9/6/2012 1:26:44 PM 2,000 units $ 2,002,100.00 $ 6,611.11 $ 2,008,711.11 #12466 5 100.250889 3.240% 9/6/2012 12:42:52 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #28702 250 100.250000 3.241% 9/6/2012 1:21:51 PM 250 units $ 250,262.50 $ 826.39 $ 251,088.89 #31807 25 100.240985 3.250% 8/31/2012 3:26:29 PM 25 units $ 25,026.25 $ 82.64 $ 25,108.89 #31808 25 100.240985 3.250% 8/31/2012 3:37:42 PM 25 units $ 25,026.25 $ 82.64 $ 25,108.89 #23436 500 100.200000 3.291% 9/6/2012 1:30:38 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #23436 500 100.200000 3.291% 9/6/2012 1:30:38 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #30297 250 100.200000 3.291% 9/6/2012 1:30:47 PM 250 units $ 250,262.50 $ 826.39 $ 251,088.89 #31439 30 100.191485 3.300% 9/6/2012 1:25:16 PM 30 units $ 30,031.50 $ 99.17 $ 30,130.67 #20935 5 100.191485 3.300% 9/6/2012 1:30:20 PM 5 units $ 5,005.25 $ 16.53 $ 5,021.78 #28695 100 100.191485 3.300% 9/6/2012 1:30:27 PM 100 units $ 100,105.00 $ 330.56 $ 100,435.56 #31867 2,000 100.150000 3.342% 9/6/2012 1:28:26 PM 2,000 units $ 2,002,100.00 $ 6,611.11 $ 2,008,711.11 #22580 1 100.125001 3.367% 9/6/2012 12:20:32 PM 1 unit $ 1,001.05 $ 3.31 $ 1,004.36 #30379 50 100.112361 3.380% 9/6/2012 1:30:03 PM 50 units $ 50,052.50 $ 165.28 $ 50,217.78 #31876 10 100.112361 3.380% 9/6/2012 1:31:04 PM 10 units $ 10,010.50 $ 33.06 $ 10,043.56 #27514 250 100.105000 3.387% 9/6/2012 1:30:13 PM 250 units $ 250,262.50 $ 826.39 $ 251,088.89 Zions Bancorporation Senior Note / 3 Year Corporates Notice: The auction has been extended until 9/6/2012 1:33:04 PM EDT. AUCTIONS DIRECTORY ISSUERS AUCTIONS UNIVERSITY DEMOS MY ACCOUNT ABOUT PRODUCTS & SERVICES AUCTIONS BOND STORE TRADING UNIVERSITY THINK CUSTOMER SERVICE OPEN ACCOUNT LOGOUT 1.800.524.8875
Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results?sort=price&sort_direction=desc&page=2 Page 2 of 3 #27514 250 100.105000 3.387% 9/6/2012 1:30:13 PM 250 units $ 250,262.50 $ 826.39 $ 251,088.89 #27514 500 100.105000 3.387% 9/6/2012 1:30:13 PM 500 units $ 500,525.00 $ 1,652.78 $ 502,177.78 #27514 250 100.105000 3.387% 9/6/2012 1:30:13 PM 248 units $ 248,260.40 $ 819.78 $ 249,080.18 #31751 300 100.100000 3.393% 8/29/2012 2:44:02 PM Rejected: Price #31750 250 100.100000 3.393% 8/29/2012 2:48:33 PM Rejected: Price #31749 150 100.100000 3.393% 8/29/2012 3:31:04 PM Rejected: Price #31748 22 100.100000 3.393% 8/29/2012 3:37:25 PM Rejected: Price #31747 34 100.100000 3.393% 8/30/2012 12:54:44 PM Rejected: Price #31745 250 100.100000 3.393% 8/30/2012 1:04:47 PM Rejected: Price #31746 200 100.100000 3.393% 8/30/2012 2:09:01 PM Rejected: Price #31826 200 100.100000 3.393% 8/30/2012 2:12:51 PM Rejected: Price #31825 30 100.100000 3.393% 8/30/2012 3:43:09 PM Rejected: Price #31824 31 100.100000 3.393% 8/30/2012 3:48:44 PM Rejected: Price #31823 200 100.100000 3.393% 8/30/2012 4:04:32 PM Rejected: Price #31822 100 100.100000 3.393% 8/30/2012 5:37:07 PM Rejected: Price #31821 200 100.100000 3.393% 9/4/2012 6:00:36 PM Rejected: Price #31820 25 100.100000 3.393% 9/4/2012 6:45:54 PM Rejected: Price #31819 100 100.100000 3.393% 9/5/2012 4:34:48 PM Rejected: Price #30297 250 100.100000 3.393% 9/6/2012 10:45:15 AM Rejected: Price #28695 100 100.092594 3.400% 9/6/2012 1:29:47 PM Rejected: Price #29773 3,500 100.070000 3.423% 9/6/2012 1:29:49 PM Rejected: Price #31809 250 100.053079 3.440% 9/6/2012 11:53:16 AM Rejected: Price #31688 200 100.043204 3.450% 9/6/2012 12:33:15 PM Rejected: Price #31876 10 100.033330 3.460% 9/6/2012 1:26:30 PM Rejected: Price #31876 10 100.013587 3.480% 9/6/2012 1:20:23 PM Rejected: Price #21860 6 100.000757 3.493% 9/6/2012 11:20:23 AM Rejected: Price #29772 500 100.000000 3.494% 9/4/2012 1:19:10 PM Rejected: Price #28702 500 100.000000 3.494% 9/5/2012 11:16:33 AM Rejected: Price #31866 5 100.000000 3.494% 9/5/2012 11:30:15 AM Rejected: Price #31438 5 100.000000 3.494% 9/5/2012 3:44:01 PM Rejected: Price #31867 2,000 100.000000 3.494% 9/6/2012 10:39:13 AM Rejected: Price #28519 10 100.000000 3.494% 9/6/2012 11:53:49 AM Rejected: Price Auction Totals: 14,000 units $ 14,014,700.00 $ 46,277.89 $ 14,060,977.89
Zions Direct Auctions - Results 9/6/12 11:36 AM https://www.auctions.zionsdirect.com/auction/6751/results?sort=price&sort_direction=desc&page=2 Page 3 of 3 *The current Market-Clearing Yield/Final Auction Yield is calculated as Yield to Worst (YTW) which is the lowest yield of yield to maturity, yield to call, yield to put, or other yields when a bond is callable, puttable, exchangeable, or has other features. If a bond is called, put or exchanged before maturity, the bondholder only earns interest on the time that has elapsed between purchasing the bond and its early redemption. The resulting yield is less than what would have been earned had the bond been held until maturity. Page 2 of 3 Zions Bancorporation has filed a registration statement (Registration Statement No. 333-173299, including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus dated April 4, 2011 contained in that registration statement, the preliminary prospectus supplement dated June 18, 2012 and other documents Zions Bancorporation has filed with the SEC for more complete information about Zions Bancorporation and this offering. You may get these documents and other documents Zions Bancorporation has filed for free by visiting EDGAR on the SEC Web site at www.sec.gov. Our Affiliates: Investment Products: Not FDIC Insured No Bank Guarantee May Lose Value Bank Deposits and Certificates of Deposit (CDs) are FDIC Insured up to Applicable Limits Securities products and services offered by Zions Direct, Member FINRA / SIPC, a non-bank subsidiary of Zions Bank. Affiliates of Zions Bank or other issuers may purchase CDs or securities through the auction process. The market clearing yield may be lower due to the participation of an affiliate in the auction which may benefit the affiliated issuer. NEWSLETTER Get market information, auction updates, new-issue alerts, and more. It’s weekly and it’s free! Email Address OTHER PRODUCTS CONTACT US ABOUT US SITE MAP PRIVACY POLICY TERMS AND CONDITIONS Please direct questions regarding the website or bidding procedures to the Auction Administrator. You may also call our Investment Center at 800-524-8875 from 8am to Midnight Eastern Time. AmegBank of Texas CB California Bank THE COMMERCE BANK OF OREGON THE COMMERCE BANK OF WASHINGTON NATIONAL BANK NEVEDA STATE BANK VECTRA BANK ZIONS BANK POWERED BY GRANT STREET GROUP SOFTWARE THAT WORKS SECURED BY ENTRUST SSL VERIFY