PAGE 1 000 A000000 04/30/2011 000 C000000 0001396277 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 Calamos Global Dynamic Income Fund 001 B000000 811-22047 001 C000000 6302457200 002 A000000 2020 CALAMOS COURT 002 B000000 NAPERVILLE 002 C000000 IL 002 D010000 60563 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 008 A000001 CALAMOS ADVISORS LLC 008 B000001 A 008 C000001 801-29688 008 D010001 NAPERVILLE 008 D020001 IL 008 D030001 60563 010 A000001 State Street Bank and Trust Company 010 B000001 028-00733 010 C010001 Boston 010 C020001 MA 010 C030001 02111 012 A000001 BANK OF NEW YORK (COMMON) 012 B000001 85-05006 012 C010001 NEW YORK 012 C020001 NY 012 C030001 10286 013 A000001 Deloitte & Touche LLP 013 B010001 Chicago 013 B020001 IL 013 B030001 60606 014 A000001 CALAMOS FINANCIAL SERVICES LLC 014 B000001 8-37854 015 A000001 STATE STREET BANK & TRUST COMPANY 015 B000001 C 015 C010001 BOSTON 015 C020001 MA 015 C030001 02111 015 E010001 X PAGE 2 015 A000002 HSBC AUSTRALIA 015 B000002 S 015 C010002 MELBOURNE 015 D010002 AUSTRALIA 015 E040002 X 015 A000003 CITIBANK NA 015 B000003 S 015 C010003 SAO PAULO 015 D010003 BRAZIL 015 E040003 X 015 A000004 CANADA SELF CUSTODY-CDSX DEBT CLEARING SYSTEM 015 B000004 S 015 C010004 TORONTO 015 D010004 CANADA 015 E040004 X 015 A000005 Skandinaviska Enskilda Banken 015 B000005 S 015 C010005 COPENHAGEN 015 D010005 DENMARK 015 E040005 X 015 A000006 EUROCLEAR BANK 015 B000006 S 015 C010006 BRUSSELS 015 D010006 BELGIUM 015 E040006 X 015 A000007 Skandinaviska Enskilda Banken Helsinki 015 B000007 S 015 C010007 Helsinki 015 D010007 Finland 015 E040007 X 015 A000008 DEUTSCHE BANK, AG 015 B000008 S 015 C010008 PARIS 015 D010008 FRANCE 015 E040008 X 015 A000009 DEUTSCHE BANK AG FRANKFURT 015 B000009 S 015 C010009 FRANKFURT 015 D010009 GERMANY 015 E040009 X 015 A000010 STANDARD CHARTERED BANK 015 B000010 S 015 C010010 KWUN TONG 015 D010010 HONG KONG 015 E040010 X 015 A000011 DEUTSCHE BANK 015 B000011 S 015 C010011 MILAN 015 D010011 ITALY 015 E040011 X 015 A000012 HSBC - JAPAN PAGE 3 015 B000012 S 015 C010012 TOKYO 015 D010012 JAPAN 015 E040012 X 015 A000013 Hongkong and Shanghai Banking Corp 015 B000013 S 015 C010013 Seoul 015 D010013 Republic of Korea 015 E040013 X 015 A000014 Banco Nacional de Mexico 015 B000014 S 015 C010014 MEXICO CITY 015 D010014 MEXICO 015 E040014 X 015 A000015 Skandinaviska Enskilda Banken 015 B000015 S 015 C010015 OSLO 015 D010015 NORWAY 015 E040015 X 015 A000016 DEUTSCHE BANK 015 B000016 S 015 C010016 BARCELONA 015 D010016 SPAIN 015 E040016 X 015 A000017 Skandinaviska Enskilda Banken 015 B000017 S 015 C010017 Stockholm 015 D010017 Sweden 015 E040017 X 015 A000018 Credit Suisse Zurich 015 B000018 S 015 C010018 Zurich 015 D010018 Switzerland 015 E040018 X 015 A000019 Standard Chartered PLC 015 B000019 S 015 C010019 Taipei 015 D010019 Taiwan 015 E040019 X 015 A000020 STATE STREET BANK AND TRUST COMPANY 015 B000020 S 015 C010020 LONDON 015 D010020 UNITED KINGDOM 015 E040020 X 015 A000021 DEUTSCHE BANK N.V. 015 B000021 S 015 C010021 NETHERLANDS 015 D010021 NETHERLANDS 015 E040021 X 015 A000022 DEUTSCHE BANK BELGIUM 015 B000022 S PAGE 4 015 C010022 Brussells 015 D010022 Belgium 015 E040022 X 015 A000023 CLEARSTREAM BANKING SA 015 B000023 S 015 C010023 LUXEMBOURG 015 D010023 LUXEMBOURG 015 E040023 X 018 000000 Y 019 A000000 Y 019 B000000 20 019 C000000 CALAMOSINV 020 A000001 CREDIT SUISSE FIRST BOSTON 020 B000001 13-2853402 020 C000001 43 020 A000002 Citadel Securities 020 B000002 10-1822334 020 C000002 27 020 A000003 INVESTMENT TECHNOLOGY GROUP, INC. 020 B000003 13-3757717 020 C000003 24 020 A000004 BANK OF AMERICA 020 B000004 56-0906609 020 C000004 20 020 A000005 G TRADE 020 B000005 14-1950353 020 C000005 16 020 A000006 SUSQUEHANNA CAPITAL GROUP 020 B000006 23-2626048 020 C000006 15 020 A000007 CALYON SECURITIES 020 B000007 13-2602298 020 C000007 9 020 A000008 UBS WARBURG 020 B000008 13-2932996 020 C000008 7 020 A000009 BANK OF NEW YORK 020 B000009 13-3989198 020 C000009 6 020 A000010 J.P. MORGAN SECURITIES INC. 020 B000010 13-3224016 020 C000010 5 021 000000 192 022 A000001 J.P. MORGAN SECURITIES INC. 022 B000001 13-3224016 022 C000001 13910 022 D000001 17440 022 A000002 CREDIT SUISSE FIRST BOSTON 022 B000002 13-2853402 022 C000002 9958 022 D000002 14833 PAGE 5 022 A000003 DEUTSCHE BANK SECURITIES, INC. 022 B000003 13-2730828 022 C000003 9537 022 D000003 13395 022 A000004 BANK OF AMERICA 022 B000004 56-0906609 022 C000004 15389 022 D000004 5294 022 A000005 BARCLAYS GLOBAL INVESTORS SERVICES 022 B000005 94-3231066 022 C000005 11317 022 D000005 7468 022 A000006 CITIGROUP GLOBAL MARKETS, INC. 022 B000006 11-2418191 022 C000006 9628 022 D000006 1249 022 A000007 WELLS FARGO SECURITIES, LLC 022 B000007 94-3379992 022 C000007 8053 022 D000007 0 022 A000008 GOLDMAN SACHS & CO. 022 B000008 13-5108880 022 C000008 6748 022 D000008 497 022 A000009 NOMURA SECURITIES INTERNATIONAL INC. 022 B000009 13-2642206 022 C000009 3116 022 D000009 2719 022 A000010 BNP PARIBAS 022 B000010 13-1929559 022 C000010 1081 022 D000010 4276 023 C000000 223882 023 D000000 208644 024 000000 Y 025 A000001 DEUTSCHE BANK SECURITIES, INC. 025 B000001 13-2730828 025 C000001 E 025 D000001 4125 025 A000002 BNP PARIBAS 025 B000002 13-1929559 025 C000002 E 025 D000002 1478 025 A000003 GOLDMAN, SACHS & CO. 025 B000003 13-5108880 025 C000003 E 025 D000003 1284 025 A000004 BANK OF AMERICA 025 B000004 56-0906609 025 C000004 E 025 D000004 4213 PAGE 6 025 A000005 CREDIT SUISSE FIRST BOSTON 025 B000005 13-2853402 025 C000005 E 025 D000005 3717 025 A000006 BARCLAYS CAPITAL INC. 025 B000006 94-3231066 025 C000006 E 025 D000006 4412 025 A000007 WELLS FARGO SECURITIES, LLC 025 B000007 94-3379992 025 C000007 E 025 D000007 2812 025 A000008 BANK OF NEW YORK 025 B000008 13-3989198 025 C000008 E 025 D000008 1187 025 A000009 CITIGROUP GLOBAL MARKETS, INC. 025 B000009 11-2418191 025 C000009 E 025 D000009 870 025 A000010 J.P. MORGAN SECURITIES INC. 025 B000010 13-3224016 025 C000010 E 025 D000010 3536 026 A000000 N 026 B000000 Y 026 C000000 N 026 D000000 Y 026 E000000 N 026 F000000 N 026 G010000 N 026 G020000 N 026 H000000 N 027 000000 N 028 A010000 0 028 A020000 0 028 A030000 0 028 A040000 0 028 B010000 0 028 B020000 0 028 B030000 0 028 B040000 0 028 C010000 0 028 C020000 0 028 C030000 0 028 C040000 0 028 D010000 0 028 D020000 0 028 D030000 0 028 D040000 0 028 E010000 0 PAGE 7 028 E020000 0 028 E030000 0 028 E040000 0 028 F010000 0 028 F020000 0 028 F030000 0 028 F040000 0 028 G010000 0 028 G020000 0 028 G030000 0 028 G040000 0 028 H000000 0 030 A000000 0 030 B000000 0.00 030 C000000 0.00 031 A000000 0 031 B000000 0 032 000000 0 033 000000 0 035 000000 0 036 B000000 0 038 000000 0 042 A000000 0 042 B000000 0 042 C000000 0 042 D000000 0 042 E000000 0 042 F000000 0 042 G000000 0 042 H000000 0 043 000000 0 044 000000 0 045 000000 Y 046 000000 N 047 000000 Y 048 000000 1.000 048 A010000 0 048 A020000 0.000 048 B010000 0 048 B020000 0.000 048 C010000 0 048 C020000 0.000 048 D010000 0 048 D020000 0.000 048 E010000 0 048 E020000 0.000 048 F010000 0 048 F020000 0.000 048 G010000 0 048 G020000 0.000 048 H010000 0 PAGE 8 048 H020000 0.000 048 I010000 0 048 I020000 0.000 048 J010000 0 048 J020000 0.000 048 K010000 0 048 K020000 0.000 049 000000 N 050 000000 N 051 000000 N 052 000000 N 053 A000000 N 054 A000000 Y 054 B000000 Y 054 C000000 N 054 D000000 N 054 E000000 N 054 F000000 N 054 G000000 N 054 H000000 Y 054 I000000 N 054 J000000 Y 054 K000000 N 054 L000000 N 054 M000000 Y 054 N000000 N 054 O000000 N 055 A000000 Y 055 B000000 Y 056 000000 Y 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 Y 060 B000000 Y 061 000000 0 062 A000000 N 062 B000000 0.0 062 C000000 0.0 062 D000000 0.0 062 E000000 0.0 062 F000000 0.0 062 G000000 0.0 062 H000000 0.0 062 I000000 0.0 062 J000000 0.0 062 K000000 0.0 062 L000000 0.0 062 M000000 0.0 062 N000000 0.0 062 O000000 0.0 PAGE 9 062 P000000 0.0 062 Q000000 0.0 062 R000000 0.0 063 A000000 0 063 B000000 0.0 066 A000000 Y 066 B000000 N 066 C000000 N 066 D000000 N 066 E000000 N 066 F000000 Y 066 G000000 N 067 000000 N 068 A000000 N 068 B000000 N 069 000000 N 070 A010000 Y 070 A020000 N 070 B010000 Y 070 B020000 Y 070 C010000 Y 070 C020000 N 070 D010000 Y 070 D020000 Y 070 E010000 Y 070 E020000 N 070 F010000 Y 070 F020000 N 070 G010000 Y 070 G020000 N 070 H010000 Y 070 H020000 N 070 I010000 Y 070 I020000 N 070 J010000 Y 070 J020000 Y 070 K010000 Y 070 K020000 Y 070 L010000 Y 070 L020000 Y 070 M010000 Y 070 M020000 Y 070 N010000 Y 070 N020000 N 070 O010000 Y 070 O020000 Y 070 P010000 Y 070 P020000 N 070 Q010000 N 070 Q020000 N 070 R010000 Y PAGE 10 070 R020000 Y 071 A000000 189012 071 B000000 181849 071 C000000 740661 071 D000000 25 072 A000000 6 072 B000000 6735 072 C000000 7303 072 D000000 0 072 E000000 0 072 F000000 3797 072 G000000 0 072 H000000 0 072 I000000 13 072 J000000 46 072 K000000 0 072 L000000 59 072 M000000 24 072 N000000 26 072 O000000 0 072 P000000 1538 072 Q000000 72 072 R000000 29 072 S000000 3 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 47 072 X000000 5655 072 Y000000 0 072 Z000000 8384 072AA000000 9778 072BB000000 3865 072CC010000 80114 072CC020000 0 072DD010000 17702 072DD020000 0 072EE000000 0 073 A010000 0.3000 073 A020000 0.0000 073 B000000 0.0000 073 C000000 0.0000 074 A000000 24982 074 B000000 0 074 C000000 5284 074 D000000 246984 074 E000000 27092 074 F000000 510811 074 G000000 235 074 H000000 0 074 I000000 33030 PAGE 11 074 J000000 3372 074 K000000 0 074 L000000 5393 074 M000000 154 074 N000000 857338 074 O000000 12077 074 P000000 763 074 Q000000 196000 074 R010000 0 074 R020000 22615 074 R030000 40 074 R040000 5285 074 S000000 0 074 T000000 620558 074 U010000 59007 074 U020000 0 074 V010000 10.52 074 V020000 0.00 074 W000000 0.0000 074 X000000 25 074 Y000000 384901 075 A000000 0 075 B000000 576121 076 000000 9.05 077 A000000 N 078 000000 N 080 C000000 0 081 B000000 0 082 B000000 0 083 B000000 0 084 B000000 0 086 A010000 0 086 A020000 0 086 B010000 0 086 B020000 0 086 C010000 0 086 C020000 0 086 D010000 0 086 D020000 0 086 E010000 0 086 E020000 0 086 F010000 0 086 F020000 0 087 A010000 Common Stock 087 A020000 12811L107 087 A030000 CHW 088 A000000 N 088 B000000 N 088 C000000 Y 088 D000000 N SIGNATURE CURTIS HOLLOWAY TITLE TREASURER