TRUST RESOURCES

Guggenheim Funds

CLOSED-END NATIONAL MUNICIPAL PORTFOLIO Series 15

PRICE HISTORY

DATE OFFER PRICE BID PRICE LIQUIDATION PRICE
2/10/12 $0.00000 $11.83150 $11.83150
2/9/12 $0.00000 $11.84860 $11.84860
2/8/12 $0.00000 $11.84530 $11.84530
2/7/12 $0.00000 $11.80320 $11.80320
2/6/12 $0.00000 $11.78430 $11.78430
2/3/12 $0.00000 $11.83780 $11.83780
2/2/12 $0.00000 $11.86590 $11.86590
2/1/12 $0.00000 $11.88650 $11.88650
1/31/12 $0.00000 $11.87610 $11.87610
1/30/12 $0.00000 $11.82410 $11.82410
1/27/12 $0.00000 $11.76680 $11.76680
1/26/12 $0.00000 $11.70540 $11.70540
1/25/12 $0.00000 $11.62680 $11.62680
1/24/12 $0.00000 $11.61200 $11.61200
1/23/12 $0.00000 $11.61790 $11.61790
1/20/12 $0.00000 $11.56230 $11.56230
1/19/12 $0.00000 $11.55660 $11.55660
1/18/12 $0.00000 $11.49410 $11.49410
1/17/12 $0.00000 $11.47340 $11.47340
1/13/12 $0.00000 $11.50530 $11.50530
1/12/12 $0.00000 $11.45250 $11.45250
Past performance does not guarantee future results.

DISTRIBUTION HISTORY

Export
EX-DIVIDEND DATE RECORD DATE PAYABLE DATE PRINCIPAL DISTRIBUTION INCOME/INTEREST DISTRIBUTION TOTAL DISTRIBUTION
1/11/12 1/13/12 1/25/12 $0.00000 $0.05860 $0.05860
12/13/11 12/15/11 12/27/11 $0.00270 $0.05760 $0.06030
11/11/11 11/15/11 11/25/11 $0.00000 $0.05760 $0.05760
10/12/11 10/14/11 10/25/11 $0.00000 $0.05780 $0.05780
9/13/11 9/15/11 9/26/11 $0.00000 $0.05740 $0.05740
8/11/11 8/15/11 8/25/11 $0.00000 $0.05700 $0.05700
7/13/11 7/15/11 7/25/11 $0.00000 $0.05710 $0.05710
6/13/11 6/15/11 6/27/11 $0.00000 $0.05720 $0.05720
5/11/11 5/13/11 5/25/11 $0.00000 $0.05740 $0.05740
4/13/11 4/15/11 4/25/11 $0.00000 $0.05720 $0.05720
3/11/11 3/15/11 3/25/11 $0.00000 $0.05710 $0.05710
2/11/11 2/15/11 2/25/11 $0.00000 $0.05630 $0.05630
1/12/11 1/14/11 1/25/11 $0.00000 $0.05700 $0.05700
12/13/10 12/15/10 12/27/10 $0.00000 $0.05600 $0.05600
11/11/10 11/15/10 11/26/10 $0.00000 $0.05610 $0.05610
10/13/10 10/15/10 10/25/10 $0.00000 $0.05610 $0.05610
9/13/10 9/15/10 9/27/10 $0.00000 $0.05660 $0.05660
8/11/10 8/13/10 8/25/10 $0.00000 $0.05710 $0.05710
7/13/10 7/15/10 7/26/10 $0.00000 $0.05660 $0.05660
6/11/10 6/15/10 6/25/10 $0.00000 $0.05600 $0.05600
5/12/10 5/14/10 5/25/10 $0.00000 $0.05640 $0.05640
4/13/10 4/15/10 4/26/10 $0.00000 $0.05640 $0.05640
3/11/10 3/15/10 3/25/10 $0.00000 $0.05600 $0.05600
2/10/10 2/12/10 2/25/10 $0.00000 $0.05650 $0.05650
1/13/10 1/15/10 1/25/10 $0.00220 $0.05690 $0.05910
12/11/09 12/15/09 12/28/09 $0.00000 $0.05510 $0.05510
11/11/09 11/13/09 11/25/09 $0.00000 $0.05460 $0.05460
10/13/09 10/15/09 10/26/09 $0.00000 $0.05470 $0.05470
9/11/09 9/15/09 9/25/09 $0.00000 $0.05140 $0.05140
8/12/09 8/14/09 8/25/09 $0.00000 $0.05150 $0.05150
7/13/09 7/15/09 7/27/09 $0.00000 $0.04990 $0.04990

ANNUAL TOTAL DISTRIBUTION*

2012 YTD $0.05860
2011 $0.68940
2010 $0.67890
2009 $0.31720
Total $1.74410

*Can be comprised of both principal and income/interest distributions.

Investors should carefully consider the investment objectives and policies, risk considerations, charges and ongoing expenses of any investment product before investing. The prospectus contains this and other relevant information. Please read the prospectus carefully before you invest. To obtain a prospectus, please contact a securities representative or Guggenheim Funds Distributors, Inc., 2455 Corporate West Drive, Lisle, Illinois 60532, 800-345-7999, or download one by accessing the Literature section of this website.

NOT FDIC INSURED | NOT BANK GUARANTEED | MAY LOSE VALUE