PAGE 1 000 A000000 04/30/2009 000 C000000 0001391461 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 ADVENT CLAYMORE GLOBAL CONVERTIBLE SECURITIES 001 B000000 811-22022 001 C000000 2124821600 002 A000000 1065 AVENUE OF THE AMERICA, 31ST FLOOR 002 B000000 NEW YORK 002 C000000 NY 002 D010000 10018 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 007 C010200 2 007 C010300 3 007 C010400 4 007 C010500 5 007 C010600 6 007 C010700 7 007 C010800 8 007 C010900 9 007 C011000 10 008 A000001 CLAYMORE ADVISORS, LLC 008 B000001 A 008 C000001 801-000000 008 D010001 LISLE 008 D020001 IL 008 D030001 60532 008 A000002 ADVENT CAPITAL MANAGEMENT, LLC 008 B000002 S 008 C000002 801-000000 008 D010002 NEW YORK 008 D020002 NY 008 D030002 10018 010 A000001 THE BANK OF NEW YORK MELLON 010 B000001 801-000000 010 C010001 NEW YORK 010 C020001 NY 010 C030001 10286 011 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH INC. 011 B000001 8-00000000 PAGE 2 011 C010001 NEW YORK 011 C020001 NY 011 C030001 10080 012 A000001 THE BANK OF NEW YORK MELLON 012 B000001 84-0000000 012 C010001 NEW YORK 012 C020001 NY 012 C030001 10286 013 A000001 PRICEWATERHOUSECOOPERS LLP 013 B010001 NEW YORK 013 B020001 NY 013 B030001 10036 015 A000001 THE BANK OF NEW YORK MELLON 015 B000001 C 015 C010001 NEW YORK 015 C020001 NY 015 C030001 10286 015 E010001 X 018 000000 Y 019 A000000 N 019 B000000 0 020 A000001 REDIPLUS 020 B000001 N/A 020 C000001 42 020 A000002 BLOOMBERG TRADEBOOK LLC 020 B000002 N/A 020 C000002 17 020 A000003 LAZARD FRERES & CO. 020 B000003 13-5545100 020 C000003 12 020 A000004 MERRILL LYNCH & CO. 020 B000004 N/A 020 C000004 8 020 A000005 DEUTSCHE BANK SECURITIES CORP. 020 B000005 13-2730828 020 C000005 6 020 A000006 BARCLAYS BANK PLC 020 B000006 13-3551367 020 C000006 5 020 A000007 FIRST BOSTON CORP 020 B000007 N/A 020 C000007 5 020 A000008 CIBC WORLD MARKETS 020 B000008 N/A 020 C000008 4 020 A000009 SALOMON BROTHERS INC. 020 B000009 N/A 020 C000009 4 020 A000010 UBS 020 B000010 N/A 020 C000010 3 PAGE 3 021 000000 121 022 A000001 DIRECT 022 B000001 N/A 022 C000001 473736 022 D000001 505619 022 A000002 JP MORGAN INVT MGMT, NEW YORK 022 B000002 N/A 022 C000002 21378 022 D000002 280859 022 A000003 CITIGROUP GLOBAL MARKETS 022 B000003 N/A 022 C000003 174 022 D000003 67255 022 A000004 DEUTSCHE BANK SECURITIES CORP. 022 B000004 13-2730828 022 C000004 19740 022 D000004 41051 022 A000005 GOLDMAN SACHS & COMPANY 022 B000005 13-5108880 022 C000005 24684 022 D000005 16525 022 A000006 MERRILL LYNCH & CO. 022 B000006 N/A 022 C000006 22425 022 D000006 13306 022 A000007 WACHOVIA 022 B000007 N/A 022 C000007 15744 022 D000007 14182 022 A000008 BARCLAYS BANK INTERNATIONAL LTD. 022 B000008 N/A 022 C000008 21747 022 D000008 7824 022 A000009 SALOMON BROTHERS INC. 022 B000009 13-3082694 022 C000009 11952 022 D000009 14266 022 A000010 BANK OF AMERICA INTERNATIONAL, LDN 022 B000010 N/A 022 C000010 14075 022 D000010 8807 023 C000000 697185 023 D000000 1074999 024 000000 Y 025 A000001 BANK OF AMERICA CORP 025 B000001 56-0906609 025 C000001 E 025 D000001 5449 025 A000002 KREDITANSTALT FUER WIEDERAUFBAU 025 B000002 N/A 025 C000002 D PAGE 4 025 D000002 6155 025 A000003 SOCO FINANCE JERSEY LTD 025 B000003 N/A 025 C000003 D 025 D000003 4687 025 A000004 VALE CAPITAL LTD 025 B000004 N/A 025 C000004 E 025 D000004 4429 025 A000005 OLD REPUBLIC INTERNATIONAL CORP 025 B000005 N/A 025 C000005 D 025 D000005 4387 025 A000006 AMERICAN EXPRESS CO 025 B000006 N/A 025 C000006 D 025 D000006 3990 025 A000007 CITIGROUP INC 025 B000007 42-1658283 025 C000007 E 025 D000007 3840 025 A000008 WELLS FARGO & CO 025 B000008 N/A 025 C000008 E 025 D000008 3839 025 A000009 INTERNATIONAL POWER JERSEY LTD 025 B000009 N/A 025 C000009 D 025 D000009 3787 025 A000010 NASDAQ OMX GROUP INC/THE 025 B000010 N/A 025 C000010 D 025 D000010 3606 025 A000011 NATIONAL CITY CORP 025 B000011 N/A 025 C000011 D 025 D000011 3557 025 A000012 BANK OF AMERICA CORP 025 B000012 56-0906609 025 C000012 D 025 D000012 3506 025 A000013 SLM CORP 025 B000013 N/A 025 C000013 E 025 D000013 2608 025 A000014 MTU AERO ENGINES FINANCE BV 025 B000014 N/A 025 C000014 D 025 D000014 2503 025 A000015 KEYCORP 025 B000015 34-6542451 PAGE 5 025 C000015 E 025 D000015 1978 025 A000016 ACTELION FINANCE SCA 025 B000016 N/A 025 C000016 D 025 D000016 1958 025 A000017 SVB FINANCIAL GROUP 025 B000017 N/A 025 C000017 D 025 D000017 1194 025 A000018 DELETE 025 D000018 0 025 A000019 DELETE 025 D000019 0 025 A000020 DELETE 025 D000020 0 025 A000021 DELETE 025 D000021 0 025 A000022 DELETE 025 D000022 0 025 A000023 DELETE 025 D000023 0 025 D000024 0 025 D000025 0 025 D000026 0 025 D000027 0 025 D000028 0 025 D000029 0 025 D000030 0 025 D000031 0 025 D000032 0 026 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 PAGE 6 028 C030000 0 028 C040000 0 028 D010000 0 028 D020000 0 028 D030000 0 028 D040000 0 028 E010000 0 028 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 PAGE 7 048 E010000 0 048 E020000 0.000 048 F010000 0 048 F020000 0.000 048 G010000 0 048 G020000 0.000 048 H010000 0 048 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 N 056 000000 N 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 Y 060 B000000 Y 061 000000 2000 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 PAGE 8 062 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 0.0 062 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 Y 066 F000000 N 066 G000000 N 067 000000 N 068 A000000 N 068 B000000 Y 069 000000 N 070 A010000 Y 070 A020000 N 070 B010000 Y 070 B020000 Y 070 C010000 Y 070 C020000 Y 070 D010000 Y 070 D020000 N 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 N 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 PAGE 9 070 O010000 Y 070 O020000 N 070 P010000 Y 070 P020000 N 070 Q010000 N 070 Q020000 N 070 R010000 Y 070 R020000 N 071 A000000 269154 071 B000000 218013 071 C000000 308037 071 D000000 71 072 A000000 6 072 B000000 7135 072 C000000 4871 072 D000000 0 072 E000000 0 072 F000000 1844 072 G000000 44 072 H000000 0 072 I000000 7 072 J000000 29 072 K000000 0 072 L000000 53 072 M000000 89 072 N000000 12 072 O000000 0 072 P000000 0 072 Q000000 58 072 R000000 67 072 S000000 62 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 266 072 X000000 2531 072 Y000000 0 072 Z000000 9475 072AA000000 0 072BB000000 172421 072CC010000 172794 072CC020000 0 072DD010000 13607 072DD020000 0 072EE000000 0 073 A010000 0.4300 073 A020000 0.0000 073 B000000 0.0000 073 C000000 0.0000 074 A000000 7348 074 B000000 0 PAGE 10 074 C000000 9629 074 D000000 282800 074 E000000 59409 074 F000000 0 074 G000000 0 074 H000000 0 074 I000000 2340 074 J000000 32321 074 K000000 0 074 L000000 3423 074 M000000 11693 074 N000000 408963 074 O000000 24335 074 P000000 1870 074 Q000000 0 074 R010000 0 074 R020000 0 074 R030000 190 074 R040000 959 074 S000000 170000 074 T000000 211609 074 U010000 31868 074 U020000 0 074 V010000 6.64 074 V020000 0.00 074 W000000 0.0000 074 X000000 22470 074 Y000000 12052 075 A000000 0 075 B000000 201744 076 000000 5.75 077 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 PAGE 11 087 A020000 007639107 087 A030000 AGC 088 A000000 Y 088 B000000 N 088 C000000 N 088 D000000 Y SIGNATURE ROBERT WHITE TITLE CFO & TREASURER