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CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND

Regulatory Filings Sep 18, 2014

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N-Q 1 d759193dnq.htm N-Q N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

INVESTMENT COMPANY ACT FILE NUMBER: 811-21080

EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER: Calamos Convertible Opportunities and Income Fund

ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court, Naperville Illinois 60563-2787
NAME AND ADDRESS OF AGENT FOR SERVICE: John P. Calamos, Sr., Chairman, CEO and Co-CIO Calamos Advisors LLC, 2020 Calamos Court, Naperville, Illinois 60563-2787

REGISTRANT’S TELEPHONE NUMBER, INCLUDING AREA CODE: (630) 245-7200

DATE OF FISCAL YEAR END: October 31, 2014

DATE OF REPORTING PERIOD: July 31, 2014

ITEM 1. SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
CORPORATE BONDS (48.4%)
Consumer Discretionary (10.2%)
1,074,000 Altice, SA*^ 7.750%,
05/15/22 $ 1,102,193
361,000 Bon-Ton Department Stores, Inc.^µ 8.000%, 06/15/21 326,028
269,000 Brunswick Corp.*µ 4.625%,
05/15/21 266,478
1,147,000 Century Communities, Inc.* 6.875%,
05/15/22 1,171,374
1,534,000 Chrysler Group, LLC 8.000%,
06/15/19 1,636,586
829,000 Cogeco Cable, Inc.*µ 4.875%,
05/01/20 842,989
4,688,000 Cooper Tire & Rubber Company^µ 8.000%, 12/15/19 5,320,880
3,472,000 Dana Holding Corp.µ 6.750%,
02/15/21 3,693,340
DISH DBS Corp.µ
5,186,000 5.125%, 05/01/20 5,331,856
4,189,000 7.875%, 09/01/19^ 4,819,968
3,069,000 Dufry Finance, SCA*µ 5.500%,
10/15/20 3,222,450
2,174,000 Golden Nugget Escrow, Inc.*^µ 8.500%, 12/01/21 2,282,700
1,017,000 Goodyear Tire & Rubber Companyµ 8.250%, 08/15/20 1,098,996
1,952,000 Greektown Holdings, LLC*µ 8.875%, 03/15/19 1,973,960
1,818,000 Hasbro, Inc.^µ 6.600%,
07/15/28 2,075,729
Icahn Enterprises, LP
2,961,000 5.875%, 02/01/22 3,033,174
1,811,000 6.000%, 08/01/20^ 1,894,759
418,000 4.875%, 03/15/19 419,045
3,836,000 Jaguar Land Rover Automotive, PLC*µ 8.125%, 05/15/21 4,241,177
L Brands, Inc.µ
2,302,000 7.600%, 07/15/37 2,543,710
522,000 6.950%, 03/01/33 542,228
1,081,000 Liberty Interactive, LLC^µ 8.250%, 02/01/30 1,189,100
Meritage Homes Corp.µ
2,609,000 7.150%, 04/15/20 2,879,684
1,464,000 7.000%, 04/01/22 1,612,230
2,187,000 MISA Investments, Ltd.* 8.625%,
08/15/18 2,240,308
1,435,000 NCL Corp., Ltd. - Class Cµ 5.000%, 02/15/18 1,467,288
Neiman Marcus Group Ltd., LLC*
472,000 8.750%, 10/15/21^ 512,415
376,000 8.000%, 10/15/21µ 394,800
2,167,000 Netflix, Inc.^µ 5.375%,
02/01/21 2,255,034
Numericable Group, SA*
2,148,000 6.000%, 05/15/22 2,154,712
153,000 6.250%, 05/15/24^ 153,574
4,373,000 Outerwall, Inc.µ 6.000%,
03/15/19 4,498,724
PRINCIPAL AMOUNT VALUE
821,000 Quiksilver, Inc. / QS Wholesale, Inc.*µ 7.875%, 08/01/18 $ 760,451
2,965,000 Royal Caribbean Cruises, Ltd.^ 7.500%, 10/15/27 3,389,366
Ryland Group, Inc.µ
4,220,000 6.625%, 05/01/20^ 4,554,962
1,143,000 5.375%, 10/01/22 1,138,714
1,435,000 Sally Holdings, LLC / Sally Capital, Inc.^µ 5.750%, 06/01/22 1,511,234
2,685,000 Service Corp. International^µ 7.500%, 04/01/27 2,970,281
2,240,000 Six Flags Entertainment Corp.*µ 5.250%, 01/15/21 2,230,200
2,300,000 Taylor Morrison Communities, Inc.*µ 5.250%, 04/15/21 2,289,937
2,302,000 Time, Inc.*^ 5.750%,
04/15/22 2,278,980
Toll Brothers Finance Corp.
2,532,000 5.625%, 01/15/24^ 2,677,590
882,000 4.000%, 12/31/18µ 905,153
2,217,000 Viking Cruises, Ltd.*µ 8.500%,
10/15/22 2,440,086
94,344,443
Consumer Staples (2.0%)
744,000 Alphabet Holding Company, Inc.µ 7.750%, 11/01/17 760,740
2,800,000 Fidelity & Guaranty Life Holdings, Inc.*µ 6.375%, 04/01/21 2,968,000
3,812,000 JBS USA, LLC*µ 7.250%,
06/01/21 4,090,753
4,143,000 Land O’Lakes, Inc.*^µ 6.000%, 11/15/22 4,464,082
3,871,000 Post Holdings, Inc.^µ 7.375%,
02/15/22 4,091,163
2,417,000 Smithfield Foods, Inc.µ 6.625%, 08/15/22 2,619,424
18,994,162
Energy (10.4%)
2,563,000 Atwood Oceanics, Inc.µ 6.500%,
02/01/20 2,718,382
1,918,000 Berry Petroleum Companyµ 6.375%, 09/15/22 1,983,931
Bonanza Creek Energy, Inc.
1,918,000 6.750%, 04/15/21µ 2,013,900
921,000 5.750%, 02/01/23^ 904,883
1,726,000 Calfrac Holdings, LP*µ 7.500%,
12/01/20 1,826,324
Calumet Specialty Products Partners,
LPµ
1,765,000 7.625%, 01/15/22 1,880,828
1,212,000 9.625%, 08/01/20 1,383,195
628,000 6.500%, 04/15/21* 645,270
Carrizo Oil & Gas, Inc.µ
3,391,000 7.500%, 09/15/20 3,700,429
2,505,000 8.625%, 10/15/18^ 2,633,381
Cimarex Energy Company
4,603,000 5.875%, 05/01/22^µ 5,066,177
844,000 4.375%, 06/01/24 866,155

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
5,370,000 Drill Rigs Holdings, Inc.*µ 6.500%, 10/01/17 $ 5,470,687
2,225,000 Energy Transfer Equity, LPµ 5.875%, 01/15/24 2,301,484
1,364,000 Energy XXI Gulf Coast, Inc.* 6.875%,
03/15/24 1,379,345
1,611,000 EPL Oil & Gas, Inc.µ 8.250%, 02/15/18 1,698,598
4,220,000 Gulfmark Offshore, Inc.µ 6.375%, 03/15/22 4,238,462
4,895,000 Gulfport Energy Corp.µ 7.750%,
11/01/20 5,329,431
1,903,000 Halcon Resources Corp. 9.750%,
07/15/20 2,027,884
4,220,000 Laredo Petroleum, Inc.µ 7.375%, 05/01/22 4,623,537
Linn Energy, LLC
3,836,000 8.625%, 04/15/20µ 4,061,365
1,534,000 6.250%, 11/01/19^‡ 1,560,845
1,151,000 7.750%, 02/01/21µ 1,217,183
767,000 6.500%, 05/15/19µ 784,258
Oasis Petroleum, Inc.µ
3,215,000 6.500%, 11/01/21 3,442,059
959,000 6.875%, 01/15/23 1,049,506
1,742,000 Pacific Drilling, SA*µ 5.375%,
06/01/20 1,666,876
2,109,000 Petroleum Geo-Services, ASA*µ 7.375%, 12/15/18 2,232,904
1,077,000 Pioneer Energy Services Corp.*µ 6.125%, 03/15/22 1,113,349
2,526,000 Rice Energy, Inc.*^ 6.250%,
05/01/22 2,513,370
3,836,000 SEACOR Holdings, Inc.µ 7.375%,
10/01/19 4,265,152
855,000 SESI, LLCµ 7.125%,
12/15/21 959,203
1,274,000 Seventy Seven Energy, Inc.µ 6.625%, 11/15/19 1,344,866
1,381,000 SM Energy Companyµ 6.500%,
11/15/21 1,481,123
2,609,000 Swift Energy Companyµ 8.875%,
01/15/20 2,754,126
2,762,000 Trinidad Drilling, Ltd.* 7.875%,
01/15/19 2,905,279
7,135,000 W&T Offshore, Inc.µ 8.500%, 06/15/19 7,607,694
2,133,000 Western Refining, Inc.µ 6.250%, 04/01/21 2,192,991
95,844,432
Financials (2.5%)
1,842,000 AON Corp.µ 8.205%,
01/01/27 2,340,224
4,365,000 Black Knight InfoServ, LLCµ 5.750%, 04/15/23 4,690,891
997,000 DuPont Fabros Technology, LPµ 5.875%, 09/15/21 1,023,171
829,000 First Cash Financial Services, Inc.*µ 6.750%, 04/01/21 870,450
1,519,000 iStar Financial, Inc.µ 4.875%,
07/01/18 1,515,202
Jefferies Finance, LLC*µ
3,261,000 7.375%, 04/01/20 3,428,126
922,000 6.875%, 04/15/22 923,153
PRINCIPAL AMOUNT VALUE
1,757,000 Nationstar Mortgage, LLC / Nationstar Capital Corp.µ 6.500%,
07/01/21 $ 1,711,977
4,220,000 Neuberger Berman Group, LLC*µ 5.875%, 03/15/22 4,531,225
2,263,000 Nuveen Investments, Inc.* 9.125%,
10/15/17 2,431,311
23,465,730
Health Care (5.5%)
2,474,000 Alere, Inc. 6.500%,
06/15/20 2,554,405
3,878,000 Community Health Systems, Inc.µ 7.125%, 07/15/20 4,180,969
976,000 ConvaTec Finance International, SA*µ 8.250%, 01/15/19 999,790
1,849,000 Crimson Merger Sub, Inc.*^ 6.625%,
05/15/22 1,747,305
2,378,000 DaVita HealthCare Partners, Inc. 5.125%, 07/15/24 2,345,303
Endo Health Solutions, Inc.*
5,754,000 7.000%, 12/15/20 6,056,085
767,000 7.000%, 07/15/19^ 809,185
HCA Holdings, Inc.µ
6,138,000 5.875%, 05/01/23 6,341,321
1,488,000 6.250%, 02/15/21 1,576,350
2,302,000 HCA, Inc.µ 7.750%,
05/15/21 2,499,109
4,415,000 Hologic, Inc.µ 6.250%,
08/01/20 4,610,916
1,182,000 Salix Pharmaceuticals, Ltd.*µ 6.000%, 01/15/21 1,251,443
4,220,000 Teleflex, Inc.^µ 6.875%,
06/01/19 4,483,750
4,718,000 Tenet Healthcare Corp.µ 6.750%, 02/01/20 5,006,977
Valeant Pharmaceuticals International, Inc.*µ
4,757,000 7.000%, 10/01/20 4,982,957
737,000 7.500%, 07/15/21 801,948
729,000 VPII Escrow Corp.*^ 6.750%,
08/15/18 770,462
51,018,275
Industrials (6.6%)
3,606,000 ACCO Brands Corp.µ 6.750%,
04/30/20 3,750,240
1,976,000 Clean Harbors, Inc.µ 5.125%,
06/01/21 1,937,715
4,757,000 Deluxe Corp.µ 6.000%,
11/15/20 5,003,769
2,210,000 Digitalglobe, Inc.*µ 5.250%,
02/01/21 2,171,325
4,193,000 Dycom Investments, Inc.µ 7.125%, 01/15/21 4,531,061
2,094,000 Edgen Murray Corp.*µ 8.750%,
11/01/20 2,350,515
1,692,000 Garda World Security Corp.*µ 7.250%, 11/15/21 1,737,473
2,167,000 GrafTech International, Ltd.^ 6.375%, 11/15/20 2,236,073
3,495,000 H&E Equipment Services, Inc.µ 7.000%, 09/01/22 3,805,181
2,685,000 Manitowoc Company, Inc.µ 8.500%, 11/01/20 2,948,466

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
1,097,000 Meritor, Inc.^ 6.750%,
06/15/21 $ 1,169,676
1,135,000 Michael Baker Holdings, LLC / Michael Baker Finance Corp.*µ 8.875%, 04/15/19 1,138,547
2,225,000 Michael Baker International, LLC / CDL Acquisition Company, Inc.*µ 8.250%, 10/15/18 2,344,594
2,302,000 Navistar International Corp.^ 8.250%, 11/01/21 2,350,918
1,384,000 Nortek, Inc.µ 8.500%,
04/15/21 1,505,965
5,025,000 Rexel, SA*^µ 6.125%,
12/15/19 5,307,656
3,729,000 Terex Corp.µ 6.000%,
05/15/21 3,941,087
1,554,000 Titan International, Inc. 6.875%,
10/01/20 1,582,166
1,803,000 TransDigm, Inc. 5.500%,
10/15/20 1,799,619
1,534,000 Triumph Group, Inc.µ 4.875%,
04/01/21 1,526,330
1,765,000 United Continental Holdings, Inc.^ 6.375%, 06/01/18 1,889,653
United Rentals North America, Inc.µ
4,220,000 7.625%, 04/15/22 4,689,475
1,074,000 6.125%, 06/15/23 1,111,590
60,829,094
Information Technology (4.9%)
2,455,000 Activision Blizzard, Inc.*µ 5.625%, 09/15/21 2,603,834
Amkor Technology, Inc.µ
2,524,000 6.375%, 10/01/22^ 2,624,960
720,000 6.625%, 06/01/21 757,800
6,138,000 Belden, Inc.*^µ 5.500%,
09/01/22 6,302,959
1,876,000 Cardtronics, Inc.* 5.125%,
08/01/22 1,879,518
1,534,000 Equinix, Inc.µ 5.375%,
04/01/23 1,543,588
4,987,000 Hughes Satellite Systems Corp.µ 7.625%, 06/15/21 5,641,544
3,069,000 J2 Global, Inc. 8.000%,
08/01/20 3,303,011
2,302,000 Magnachip Semiconductor, Inc.^ 6.625%, 07/15/21 2,234,379
6,452,000 Nuance Communications, Inc.*^µ 5.375%, 08/15/20 6,488,292
1,534,000 NXP Semiconductors, NV*µ 5.750%, 02/15/21 1,611,659
3,456,000 Sungard Data Systems, Inc.µ 6.625%, 11/01/19 3,579,120
2,609,000 ViaSat, Inc.µ 6.875%,
06/15/20 2,812,828
4,220,000 Viasystems, Inc.*µ 7.875%,
05/01/19 4,428,362
45,811,854
Materials (3.4%)
1,101,000 Chemtura Corp.µ 5.750%,
07/15/21 1,118,891
First Quantum Minerals, Ltd.*
1,168,000 7.000%, 02/15/21µ 1,207,420
PRINCIPAL AMOUNT VALUE
1,168,000 6.750%, 02/15/20^ $ 1,203,770
5,754,000 FMG Resources*^ 8.250%,
11/01/19 6,214,320
3,383,000 Greif, Inc.µ 7.750%,
08/01/19 3,875,649
INEOS Group Holdings, SA*^
1,688,000 6.125%, 08/15/18 1,711,210
921,000 5.875%, 02/15/19 929,634
New Gold, Inc.*µ
3,069,000 7.000%, 04/15/20 3,295,339
844,000 6.250%, 11/15/22 894,113
1,803,000 PH Glatfelter Companyµ 5.375%,
10/15/20 1,866,105
Sealed Air Corp.*µ
1,577,000 6.500%, 12/01/20 1,761,312
867,000 5.250%, 04/01/23 863,749
3,936,000 Trinseo Materials Operating, SCA^ 8.750%, 02/01/19 4,154,940
2,148,000 United States Steel Corp.^µ 6.875%, 04/01/21 2,272,852
31,369,304
Telecommunication Services (2.1%)
1,562,000 CenturyLink, Inc.µ 6.750%,
12/01/23 1,696,613
2,134,000 Frontier Communications Corp.µ 7.625%, 04/15/24 2,246,035
Intelsat, SA^
4,296,000 7.750%, 06/01/21 4,411,455
307,000 8.125%, 06/01/23 319,664
1,803,000 SBA Communications Corp.µ 5.625%, 10/01/19 1,888,642
Sprint Corp.*µ
2,470,000 7.875%, 09/15/23^ 2,652,162
1,135,000 7.125%, 06/15/24 1,156,991
794,000 7.250%, 09/15/21 848,588
3,606,000 T-Mobile USA, Inc.^ 6.625%,
04/01/23 3,784,046
19,004,196
Utilities (0.8%)
2,302,000 AES Corp.µ 7.375%,
07/01/21 2,625,719
3,805,000 AmeriGas Finance Corp.^µ 7.000%, 05/20/22 4,080,862
820,000 Calpine Corp. 5.375%,
01/15/23 805,650
7,512,231
TOTAL CORPORATE BONDS (Cost $429,928,581) 448,193,721
CONVERTIBLE BONDS (49.2%)
Consumer Discretionary (11.3%)
6,400,000 HomeAway, Inc.*^ 0.125%,
04/01/19 6,282,016
Iconix Brand Group, Inc.µ
5,600,000 1.500%, 03/15/18 8,081,416
2,000,000 2.500%, 06/01/16 2,858,680
Jarden Corp.^
8,015,000 1.125%, 03/15/34* 7,937,134
6,000,000 1.500%, 06/15/19µ 6,963,450
2,350,000 KB Homeµ 1.375%,
02/01/19 2,271,216

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

| PRINCIPAL AMOUNT — 16,850,000 | | Liberty Interactive, LLC (Time Warner Cable, Inc., Time Warner, Inc.)µ,§ 0.750%,
03/30/43 | VALUE — $ 23,432,537 |
| --- | --- | --- | --- |
| 5,050,000 | | Liberty Media Corp.^ 1.375%,
10/15/23 | 5,183,118 |
| 10,500,000 | | MGM Resorts International^µ 4.250%, 04/15/15 | 15,630,300 |
| 6,027,000 | | Priceline Group, Inc.µ 1.000%,
03/15/18 | 8,713,686 |
| 4,800,000 | | Standard Pacific Corp.^µ 1.250%, 08/01/32 | 5,577,360 |
| 12,150,000 | | Tesla Motors, Inc.^µ 1.250%,
03/01/21 | 11,372,279 |
| | | | 104,303,192 |
| | | Energy (1.2%) | |
| 8,500,000 | | Chesapeake Energy Corp.^µ 2.250%, 12/15/38 | 8,176,660 |
| 3,300,000 | | Energy XXI Bermuda, Ltd.
µ 3.000%, 12/15/18 | 3,121,618 |
| | | | 11,298,278 |
| | | Financials (5.0%) | |
| | | Ares Capital Corp.µ | |
| 7,300,000 | | 4.750%, 01/15/18 | 7,711,245 |
| 4,027,000 | | 5.750%, 02/01/16 | 4,282,775 |
| 1,600,000 | EUR | Azimut Holding, S.p.A.µ 2.125%, 11/25/20 | 2,429,252 |
| 2,850,000 | | Health Care REIT, Inc.^µ 3.000%, 12/01/29 | 3,539,529 |
| 3,500,000 | | IAS Operating Partnership, LPµ 5.000%, 03/15/18 | 3,445,995 |
| 1,215,000 | | Jefferies Group, Inc.^µ 3.875%, 11/01/29 | 1,297,905 |
| | | MGIC Investment Corp.^µ | |
| 4,400,000 | | 2.000%, 04/01/20 | 5,659,368 |
| 1,294,000 | | 5.000%, 05/01/17 | 1,414,957 |
| 3,047,000 | | Portfolio Recovery Associates, Inc.
µ 3.000%, 08/01/20 | 3,593,708 |
| 4,800,000 | | Prologis, Inc.^ 3.250%,
03/15/15 | 5,367,744 |
| 4,200,000 | | Spirit Realty Capital, Inc.^ 2.875%,
05/15/19 | 4,224,612 |
| 2,900,000 | | Starwood Property Trust, Inc.µ 4.550%, 03/01/18 | 3,242,142 |
| | | | 46,209,232 |
| | | Health Care (12.2%) | |
| 3,188,000 | | Acorda Therapeutics, Inc. 1.750%,
06/15/21 | 3,111,647 |
| 5,711,000 | | BioMarin Pharmaceutical, Inc.^µ 1.500%, 10/15/20 | 5,972,964 |
| 5,900,000 | | Cepheid^ 1.250%,
02/01/21 | 5,579,571 |
| 9,207,000 | | Cubist Pharmaceuticals, Inc.
^µ 1.875%, 09/01/20 | 9,909,172 |
| 3,050,000 | | Emergent Biosolutions, Inc.*^ 2.875%, 01/15/21 | 3,171,115 |
| 3,175,000 | | Fluidigm Corp.^µ 2.750%,
02/01/34 | 2,953,528 |
| 4,100,000 | | Gilead Sciences, Inc. 1.625%,
05/01/16 | 16,511,725 |
| 2,800,000 | | Hologic, Inc.^‡ 2.000%,
12/15/37 | 3,526,698 |

PRINCIPAL AMOUNT VALUE
12,800,000 Illumina, Inc.*^ 0.500%,
06/15/21 $ 12,789,504
1,435,000 Incyte Corp.*µ 1.250%,
11/15/20 1,732,081
3,200,000 Insulet Corp. 2.000%,
06/15/19 3,368,544
5,689,000 Medidata Solutions, Inc.*^ 1.000%,
08/01/18 6,220,609
5,745,000 Molina Healthcare, Inc.^ 1.125%,
01/15/20 6,758,016
5,450,000 Salix Pharmaceuticals, Ltd.^µ 1.500%, 03/15/19 11,322,402
12,700,000 WellPoint, Inc.µ 2.750%,
10/15/42 20,002,817
112,930,393
Industrials (2.0%)
2,022,000 Air Lease Corp.µ 3.875%,
12/01/18 2,845,278
8,600,000 Trinity Industries, Inc.µ 3.875%, 06/01/36 15,982,197
18,827,475
Information Technology (15.2%)
3,300,000 Citrix Systems, Inc.*^µ 0.500%, 04/15/19 3,593,222
759,000 Electronic Arts, Inc. 0.750%,
07/15/16 914,986
4,400,000 Finisar Corp.*^ 0.500%,
12/15/33 4,328,236
6,200,000 InvenSense, Inc.*^µ 1.750%,
11/01/18 7,426,484
14,250,000 Mentor Graphics Corp.^ 4.000%,
04/01/31 16,607,449
2,200,000 Novellus Systems, Inc.^µ 2.625%, 05/15/41 4,558,180
5,700,000 NVIDIA Corp.*^µ 1.000%,
12/01/18 6,171,817
8,000,000 ON Semiconductor Corp.^ 2.625%,
12/15/26 9,105,520
9,250,000 Palo Alto Networks, Inc.*^ 0.000%,
07/01/19 9,479,400
3,600,000 Salesforce.com, Inc.^µ 0.250%,
04/01/18 3,989,250
21,500,000 SanDisk Corp.*^µ 0.500%,
10/15/20 25,115,870
11,550,000 ServiceNow, Inc.*^ 0.000%,
11/01/18 12,439,234
SunEdison, Inc.*^
8,378,000 0.250%, 01/15/20 8,482,725
1,531,000 2.000%, 10/01/18 2,360,105
4,374,000 SunPower Corp.*^ 0.875%,
06/01/21 4,968,252
6,700,000 Take-Two Interactive Software, Inc.^µ 1.000%, 07/01/18 8,198,455
4,000,000 Verint Systems, Inc.^ 1.500%,
06/01/21 4,080,980
Workday, Inc.
3,450,000 1.500%, 07/15/20 4,381,741
3,450,000 0.750%, 07/15/18^ 4,260,233
140,462,139
Materials (2.3%)
6,950,000 Cemex, SAB de CV^µ 3.250%,
03/15/16 9,626,515

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
5,200,000 Glencore Finance Europe, SAµ 5.000%, 12/31/14 $ 6,030,791
RTI International Metals, Inc.^
2,800,000 1.625%, 10/15/19 2,732,912
2,600,000 3.000%, 12/01/15µ 2,677,740
21,067,958
TOTAL CONVERTIBLE BONDS (Cost $402,765,485) 455,098,667
U.S. GOVERNMENT AND AGENCY SECURITY (0.1%)
844,000 United States Treasury Note~ 0.125%,
12/31/14 (Cost $844,000) 844,247
SYNTHETIC CONVERTIBLE SECURITIES (17.3%) ¤
Corporate Bonds (14.7%)
Consumer Discretionary (3.1%)
326,000 Altice, SA*^ 7.750%,
05/15/22 334,558
109,000 Bon-Ton Department Stores, Inc.^µ 8.000%, 06/15/21 98,441
81,000 Brunswick Corp.*µ 4.625%,
05/15/21 80,241
348,000 Century Communities, Inc.* 6.875%,
05/15/22 355,395
466,000 Chrysler Group, LLC 8.000%,
06/15/19 497,164
251,000 Cogeco Cable, Inc.*µ 4.875%,
05/01/20 255,236
1,423,000 Cooper Tire & Rubber Company^µ 8.000%, 12/15/19 1,615,105
1,054,000 Dana Holding Corp.µ 6.750%,
02/15/21 1,121,192
DISH DBS Corp.µ
1,574,000 5.125%, 05/01/20 1,618,269
1,271,000 7.875%, 09/01/19^ 1,462,444
931,000 Dufry Finance, SCA*µ 5.500%,
10/15/20 977,550
660,000 Golden Nugget Escrow, Inc.*^µ 8.500%, 12/01/21 693,000
308,000 Goodyear Tire & Rubber Companyµ 8.250%, 08/15/20 332,833
592,000 Greektown Holdings, LLC*µ 8.875%, 03/15/19 598,660
552,000 Hasbro, Inc.^µ 6.600%,
07/15/28 630,254
Icahn Enterprises, LP
899,000 5.875%, 02/01/22 920,913
549,000 6.000%, 08/01/20^ 574,391
127,000 4.875%, 03/15/19 127,318
1,164,000 Jaguar Land Rover Automotive, PLC*µ 8.125%, 05/15/21 1,286,947
L Brands, Inc.µ
698,000 7.600%, 07/15/37 771,290
158,000 6.950%, 03/01/33 164,123
328,000 Liberty Interactive, LLC^µ 8.250%, 02/01/30 360,800
Meritage Homes Corp.µ
791,000 7.150%, 04/15/20 873,066
PRINCIPAL AMOUNT VALUE
444,000 7.000%, 04/01/22 $ 488,955
663,000 MISA Investments, Ltd.* 8.625%,
08/15/18 679,161
435,000 NCL Corp., Ltd. - Class Cµ 5.000%, 02/15/18 444,788
Neiman Marcus Group Ltd., LLC*
143,000 8.750%, 10/15/21^ 155,244
114,000 8.000%, 10/15/21µ 119,700
658,000 Netflix, Inc.^µ 5.375%,
02/01/21 684,731
Numericable Group, SA*
652,000 6.000%, 05/15/22 654,037
47,000 6.250%, 05/15/24^ 47,176
1,327,000 Outerwall, Inc.µ 6.000%,
03/15/19 1,365,151
249,000 Quiksilver, Inc. / QS Wholesale, Inc.*µ 7.875%, 08/01/18 230,636
900,000 Royal Caribbean Cruises, Ltd.^ 7.500%, 10/15/27 1,028,812
Ryland Group, Inc.µ
1,280,000 6.625%, 05/01/20^ 1,381,600
347,000 5.375%, 10/01/22 345,699
435,000 Sally Holdings, LLC / Sally Capital, Inc.^µ 5.750%, 06/01/22 458,109
815,000 Service Corp. International^µ 7.500%, 04/01/27 901,594
680,000 Six Flags Entertainment Corp.*µ 5.250%, 01/15/21 677,025
698,000 Taylor Morrison Communities, Inc.*µ 5.250%, 04/15/21 694,946
698,000 Time, Inc.*^ 5.750%,
04/15/22 691,020
Toll Brothers Finance Corp.
768,000 5.625%, 01/15/24^ 812,160
268,000 4.000%, 12/31/18µ 275,035
673,000 Viking Cruises, Ltd.*µ 8.500%,
10/15/22 740,721
28,625,490
Consumer Staples (0.6%)
226,000 Alphabet Holding Company, Inc.µ 7.750%, 11/01/17 231,085
850,000 Fidelity & Guaranty Life Holdings, Inc.*µ 6.375%, 04/01/21 901,000
1,156,000 JBS USA, LLC*µ 7.250%,
06/01/21 1,240,533
1,257,000 Land O’Lakes, Inc.*^µ 6.000%, 11/15/22 1,354,417
1,174,000 Post Holdings, Inc.^µ 7.375%,
02/15/22 1,240,771
733,000 Smithfield Foods, Inc.µ 6.625%, 08/15/22 794,389
5,762,195
Energy (3.1%)
778,000 Atwood Oceanics, Inc.µ 6.500%,
02/01/20 825,166
582,000 Berry Petroleum Companyµ 6.375%, 09/15/22 602,006
Bonanza Creek Energy, Inc.
582,000 6.750%, 04/15/21µ 611,100
279,000 5.750%, 02/01/23^ 274,118

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
524,000 Calfrac Holdings, LP*µ 7.500%,
12/01/20 $ 554,458
Calumet Specialty Products Partners,
LPµ
535,000 7.625%, 01/15/22 570,109
368,000 9.625%, 08/01/20 419,980
191,000 6.500%, 04/15/21* 196,253
Carrizo Oil & Gas, Inc.µ
1,029,000 7.500%, 09/15/20 1,122,896
760,000 8.625%, 10/15/18^ 798,950
Cimarex Energy Company
1,397,000 5.875%, 05/01/22^µ 1,537,573
256,000 4.375%, 06/01/24 262,720
1,630,000 Drill Rigs Holdings, Inc.*µ 6.500%, 10/01/17 1,660,562
675,000 Energy Transfer Equity, LPµ 5.875%, 01/15/24 698,203
414,000 Energy XXI Gulf Coast, Inc.* 6.875%,
03/15/24 418,658
489,000 EPL OIl & Gas, Inc.µ 8.250%, 02/15/18 515,589
1,280,000 Gulfmark Offshore, Inc.µ 6.375%, 03/15/22 1,285,600
1,485,000 Gulfport Energy Corp.µ 7.750%,
11/01/20 1,616,794
577,000 Halcon Resources Corp. 9.750%,
07/15/20 614,866
1,280,000 Laredo Petroleum, Inc.µ 7.375%, 05/01/22 1,402,400
Linn Energy, LLC
1,164,000 8.625%, 04/15/20µ 1,232,385
466,000 6.250%, 11/01/19^‡ 474,155
349,000 7.750%, 02/01/21µ 369,068
233,000 6.500%, 05/15/19µ 238,243
Oasis Petroleum, Inc.µ
975,000 6.500%, 11/01/21 1,043,859
291,000 6.875%, 01/15/23 318,463
528,000 Pacific Drilling, SA*µ 5.375%,
06/01/20 505,230
640,000 Petroleum Geo-Services, ASA*µ 7.375%, 12/15/18 677,600
327,000 Pioneer Energy Services Corp.*µ 6.125%, 03/15/22 338,036
767,000 Rice Energy, Inc.*^ 6.250%,
05/01/22 763,165
1,164,000 SEACOR Holdings, Inc.µ 7.375%,
10/01/19 1,294,222
260,000 SESI, LLCµ 7.125%,
12/15/21 291,688
386,000 Seventy Seven Energy, Inc.µ 6.625%, 11/15/19 407,471
419,000 SM Energy Companyµ 6.500%,
11/15/21 449,378
791,000 Swift Energy Companyµ 8.875%,
01/15/20 834,999
838,000 Trinidad Drilling, Ltd.* 7.875%,
01/15/19 881,471
2,165,000 W&T Offshore, Inc.µ 8.500%, 06/15/19 2,308,431
647,000 Western Refining, Inc.µ 6.250%, 04/01/21 665,197
29,081,062
PRINCIPAL AMOUNT VALUE
Financials (0.8%)
559,000 AON Corp.µ 8.205%,
01/01/27 $ 710,198
1,325,000 Black Knight InfoServ, LLCµ 5.750%, 04/15/23 1,423,924
303,000 DuPont Fabros Technology, LPµ 5.875%, 09/15/21 310,954
251,000 First Cash Financial Services, Inc.*µ 6.750%, 04/01/21 263,550
461,000 iStar Financial, Inc.µ 4.875%,
07/01/18 459,848
Jefferies Finance, LLC*µ
989,000 7.375%, 04/01/20 1,039,686
280,000 6.875%, 04/15/22 280,350
533,000 Nationstar Mortgage, LLC / Nationstar Capital Corp.µ 6.500%,
07/01/21 519,342
1,280,000 Neuberger Berman Group, LLC*µ 5.875%, 03/15/22 1,374,400
687,000 Nuveen Investments, Inc.* 9.125%,
10/15/17 738,096
7,120,348
Health Care (1.7%)
751,000 Alere, Inc. 6.500%,
06/15/20 775,407
1,177,000 Community Health Systems, Inc.µ 7.125%, 07/15/20 1,268,953
296,000 ConvaTec Finance International, SA*µ 8.250%, 01/15/19 303,215
561,000 Crimson Merger Sub, Inc.*^ 6.625%,
05/15/22 530,145
722,000 DaVita HealthCare Partners, Inc. 5.125%, 07/15/24 712,073
Endo Health Solutions, Inc.*
1,746,000 7.000%, 12/15/20 1,837,665
233,000 7.000%, 07/15/19^ 245,815
HCA Holdings, Inc.µ
1,862,000 5.875%, 05/01/23 1,923,679
452,000 6.250%, 02/15/21 478,838
698,000 HCA, Inc.µ 7.750%,
05/15/21 757,766
1,340,000 Hologic, Inc.µ 6.250%,
08/01/20 1,399,462
358,000 Salix Pharmaceuticals, Ltd.*µ 6.000%, 01/15/21 379,033
1,280,000 Teleflex, Inc.^µ 6.875%,
06/01/19 1,360,000
1,432,000 Tenet Healthcare Corp.µ 6.750%, 02/01/20 1,519,710
Valeant Pharmaceuticals International, Inc.*µ
1,443,000 7.000%, 10/01/20 1,511,542
223,000 7.500%, 07/15/21 242,652
221,000 VPII Escrow Corp.*^ 6.750%,
08/15/18 233,569
15,479,524
Industrials (2.0%)
1,094,000 ACCO Brands Corp.µ 6.750%,
04/30/20 1,137,760
599,000 Clean Harbors, Inc.µ 5.125%,
06/01/21 587,394

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
1,443,000 Deluxe Corp.µ 6.000%,
11/15/20 $ 1,517,856
670,000 Digitalglobe, Inc.*µ 5.250%,
02/01/21 658,275
1,272,000 Dycom Investments, Inc.µ 7.125%, 01/15/21 1,374,555
636,000 Edgen Murray Corp.*µ 8.750%,
11/01/20 713,910
513,000 Garda World Security Corp.*µ 7.250%, 11/15/21 526,787
658,000 GrafTech International, Ltd.^ 6.375%, 11/15/20 678,974
1,060,000 H&E Equipment Services, Inc.µ 7.000%, 09/01/22 1,154,075
815,000 Manitowoc Company, Inc.µ 8.500%, 11/01/20 894,972
333,000 Meritor, Inc.^ 6.750%,
06/15/21 355,061
345,000 Michael Baker Holdings, LLC / Michael Baker Finance Corp.*µ 8.875%,
04/15/19 346,078
675,000 Michael Baker International, LLC / CDL Acquisition Company, Inc.*µ 8.250%,
10/15/18 711,281
698,000 Navistar International Corp.^ 8.250%, 11/01/21 712,833
420,000 Nortek, Inc.µ 8.500%,
04/15/21 457,013
1,525,000 Rexel, SA*^µ 6.125%,
12/15/19 1,610,781
1,131,000 Terex Corp.µ 6.000%,
05/15/21 1,195,326
471,000 Titan International, Inc. 6.875%,
10/01/20 479,537
547,000 TransDigm, Inc. 5.500%,
10/15/20 545,974
466,000 Triumph Group, Inc.µ 4.875%,
04/01/21 463,670
535,000 United Continental Holdings, Inc.^ 6.375%, 06/01/18 572,784
United Rentals North America, Inc.µ
1,280,000 7.625%, 04/15/22 1,422,400
326,000 6.125%, 06/15/23 337,410
18,454,706
Information Technology (1.5%)
745,000 Activision Blizzard, Inc.*µ 5.625%, 09/15/21 790,166
Amkor Technology, Inc.µ
766,000 6.375%, 10/01/22^ 796,640
219,000 6.625%, 06/01/21 230,498
1,862,000 Belden, Inc.*^µ 5.500%,
09/01/22 1,912,041
569,000 Cardtronics, Inc.* 5.125%,
08/01/22 570,067
466,000 Equinix, Inc.µ 5.375%,
04/01/23 468,912
1,513,000 Hughes Satellite Systems Corp.µ 7.625%, 06/15/21 1,711,581
931,000 J2 Global, Inc. 8.000%,
08/01/20 1,001,989
698,000 Magnachip Semiconductor, Inc.^ 6.625%, 07/15/21 677,496
PRINCIPAL AMOUNT VALUE
1,958,000 Nuance Communications, Inc.*^µ 5.375%, 08/15/20 $ 1,969,014
466,000 NXP Semiconductors, NV*µ 5.750%, 02/15/21 489,591
1,049,000 Sungard Data Systems, Inc.µ 6.625%, 11/01/19 1,086,371
791,000 ViaSat, Inc.µ 6.875%,
06/15/20 852,797
1,280,000 Viasystems, Inc.*µ 7.875%,
05/01/19 1,343,200
13,900,363
Materials (1.0%)
334,000 Chemtura Corp.µ 5.750%,
07/15/21 339,428
First Quantum Minerals, Ltd.*
355,000 7.000%, 02/15/21µ 366,981
355,000 6.750%, 02/15/20^ 365,872
1,746,000 FMG Resources*^ 8.250%,
11/01/19 1,885,680
1,027,000 Greif, Inc.µ 7.750%,
08/01/19 1,176,557
INEOS Group Holdings, SA*^
512,000 6.125%, 08/15/18 519,040
279,000 5.875%, 02/15/19 281,616
New Gold, Inc.*µ
931,000 7.000%, 04/15/20 999,661
256,000 6.250%, 11/15/22 271,200
547,000 PH Glatfelter Companyµ 5.375%,
10/15/20 566,145
Sealed Air Corp.*µ
478,000 6.500%, 12/01/20 533,866
263,000 5.250%, 04/01/23 262,014
1,194,000 Trinseo Materials Operating, SCA^ 8.750%, 02/01/19 1,260,416
652,000 United States Steel Corp.^µ 6.875%, 04/01/21 689,897
9,518,373
Telecommunication Services (0.6%)
474,000 CenturyLink, Inc.µ 6.750%,
12/01/23 514,849
648,000 Frontier Communications Corp.µ 7.625%, 04/15/24 682,020
Intelsat, SA^
1,304,000 7.750%, 06/01/21 1,339,045
93,000 8.125%, 06/01/23 96,836
547,000 SBA Communications Corp.µ 5.625%, 10/01/19 572,983
Sprint Corp.*µ
750,000 7.875%, 09/15/23^ 805,313
345,000 7.125%, 06/15/24 351,684
241,000 7.250%, 09/15/21 257,569
1,094,000 T-Mobile USA, Inc.^ 6.625%,
04/01/23 1,148,016
5,768,315
Utilities (0.3%)
698,000 AES Corp.µ 7.375%,
07/01/21 796,156
1,155,000 AmeriGas Finance Corp.^µ 7.000%, 05/20/22 1,238,737

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

PRINCIPAL AMOUNT VALUE
249,000 Calpine Corp. 5.375%,
01/15/23 $ 244,643
2,279,536
TOTAL CORPORATE BONDS 135,989,912
U.S. Government and Agency Security (0.0%)
256,000 United States Treasury Note~ 0.125%,
12/31/14 256,075
NUMBER OF CONTRACTS VALUE
Purchased Options (2.6%) #
Consumer Discretionary (0.1%)
8,100 D.R. Horton, Inc. Call, 08/16/14,
Strike $24.00 32,400
1,775 Lennar Corp. Call, 01/17/15, Strike
$37.00 450,850
4,900 Toll Brothers, Inc. Call, 09/20/14,
Strike $37.00 122,500
605,750
Energy (0.3%)
736 Continental Resources, Inc. Call,
01/17/15, Strike $105.00 3,223,680
Health Care (0.9%)
2,125 Gilead Sciences, Inc. Call,
01/17/15, Strike $72.50 4,462,500
3,760 Mylan, Inc. Call, 01/17/15, Strike
$45.00 2,472,200
190 Regeneron Pharmaceuticals, Inc. Call, 01/17/15, Strike $250.00 1,434,500
8,369,200
Information Technology (1.3%)
1,400 Apple, Inc. Call, 01/17/15, Strike
$71.43 3,398,500
1,940 Facebook, Inc. Call, 01/17/15,
Strike $67.50 1,920,600
180 Google, Inc. Call, 01/17/15, Strike
$1,020.00 2,826,000
4,000 Micron Technology, Inc. Call,
01/15/16, Strike $25.00 3,700,000
11,845,100
TOTAL PURCHASED OPTIONS 24,043,730
TOTAL SYNTHETIC CONVERTIBLE SECURITIES (Cost
$149,942,081) 160,289,717
NUMBER OF SHARES VALUE
CONVERTIBLE PREFERRED STOCKS (20.0%)
Consumer Staples (1.6%)
54,000 Bunge, Ltd.µ 4.875% 5,710,500
30,800 Post Holdings, Inc. 5.250% 3,006,542
NUMBER OF SHARES VALUE
130,000 Tyson Foods, Inc. 4.750% $ 6,353,750
15,070,792
Energy (2.4%)
19,133 Chesapeake Energy Corp.*^µ 5.750% 22,481,275
Financials (6.5%)
350,000 Affiliated Managers Group, Inc.^µ 5.150% 22,137,500
64,000 American Tower Corp. 5.250% 7,062,400
93,000 Crown Castle International Corp. 4.500% 9,321,390
539,000 MetLife, Inc.µ 5.000% 16,310,140
103,333 Weyerhaeuser Company^ 6.375% 5,582,049
60,413,479
Industrials (5.6%)
58,200 Genesee & Wyoming, Inc.^ 5.000% 7,531,662
Stanley Black & Decker, Inc.^
91,966 4.750%µ 12,061,341
33,500 6.250% 3,798,900
480,000 United Technologies Corp.^µ 7.500% 28,473,600
51,865,503
Telecommunication Services (0.9%)
161,000 Intelsat, SAµ 5.750% 7,929,250
Utilities (3.0%)
170,000 Dominion Resources, Inc. 6.375% 8,619,000
130,000 Exelon Corp.^ 6.500% 6,383,000
NextEra Energy, Inc.
185,000 5.799%^ 9,866,050
46,000 5.599%µ 2,856,830
27,724,880
TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $167,672,517) 185,485,179
COMMON STOCKS (0.4%)
Financials (0.4%)
13,850 American International Group, Inc.µ 719,923
190,000 Och-Ziff Capital Management Group,
LLC - Class A 2,585,900
TOTAL COMMON STOCKS (Cost $3,205,296) 3,305,823
SHORT TERM INVESTMENT (2.6%)
23,553,052 Fidelity Prime Money Market Fund -
Institutional Class (Cost $23,553,052) 23,553,052

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2014 (UNAUDITED)

TOTAL INVESTMENTS (138.0%) (Cost $1,177,911,012) VALUE — $ 1,276,770,406
LIABILITIES, LESS OTHER ASSETS (-38.0%) (351,342,767 )
NET ASSETS (100.0%) $ 925,427,639

NOTES TO SCHEDULE OF INVESTMENTS

| * | Securities issued and sold pursuant to a Rule 144A transaction are excepted from the registration requirement of the Securities Act of 1933, as amended. These securities may only be
sold to qualified institutional buyers (“QIBs”), such as the fund. Any resale of these securities must generally be effected through a sale that is registered under the Act or otherwise exempted from such registration
requirements. |
| --- | --- |
| ^ | Security, or portion of security, is on loan. |
| µ | Security, or portion of security, is held in a segregated account as collateral for note payable aggregating a total value of $727,252,353. $166,037,102 of the collateral has been
re-registered by one of the counterparties, BNP (see Note 3 - Borrowings). |

‡ Variable rate or step bond security. The rate shown is the rate in effect at July 31, 2014.
§ Securities exchangeable or convertible into securities of one or more entities that are different than the issuer. Each entity is identified in the parenthetical.
~ Security, or portion of security, is segregated as collateral (or potential collateral for future transactions) for swaps. The aggregate value of such securities is
$850,249.
¤ The synthetic convertible securities strategy combines separate securities that together possess the economic characteristics similar to a convertible security.
# Non-income producing security.

FOREIGN CURRENCY ABBREVIATION

EUR European Monetary Unit

Note: Value for securities denominated in foreign currencies is shown in U.S. dollars. The principal amount for such securities is shown in the respective foreign currency. The date on options represents the expiration date of the option contract. The option contract may be exercised at any date on or before the date shown.

See accompanying Notes to Schedule of Investments

Calamos Convertible Opportunities and Income Fund

INTEREST RATE SWAPS

| Counterparty | Fixed
Rate (Fund Pays) | Floating Rate (Fund Receives) | Termination Date | Notional Amount | Unrealized Appreciation/ (Depreciation) | |
| --- | --- | --- | --- | --- | --- | --- |
| BNP Paribas, SA | 1.160% quarterly | 3 month LIBOR | 04/19/17 | $ 55,000,000 | $ (189,704 | ) |
| BNP Paribas, SA | 1.140% quarterly | 3 month LIBOR | 03/14/17 | 40,000,000 | (196,461 | ) |
| | | | | | $ (386,165 | ) |

See accompanying Notes to Schedule of Investments

NOTE 1 — ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Organization. Calamos Convertible Opportunities and Income Fund (the “Fund”) was organized as a Delaware statutory trust on April 17, 2002 and is registered under the Investment Company Act of 1940 (the “1940 Act”) as a diversified, closed-end management investment company. The Fund commenced operations on June 26, 2002. The Fund’s investment objective is to provide total return through a combination of capital appreciation and current income. Under normal circumstances, the Fund will invest at least 80% of its managed assets in a diversified portfolio of convertibles and non-convertible income securities. “Managed assets” means the Fund’s total assets (including any assets attributable to any leverage that may be outstanding) minus total liabilities (other than debt representing financial leverage).

Fund Valuation. The valuation of the Fund’s investments is in accordance with policies and procedures adopted by and under the ultimate supervision of the board of trustees.

Fund securities that are traded on U.S. securities exchanges, except option securities, are valued at the official closing price, which is the last current reported sales price on its principle exchange at the time each Fund determines its net asset value (“NAV”). Securities traded in the over-the-counter market and quoted on The NASDAQ Stock Market are valued at the NASDAQ Official Closing Price, as determined by NASDAQ, or lacking a NASDAQ Official Closing Price, the last current reported sale price on NASDAQ at the time a Fund determines its NAV. When a last sale or closing price is not available, equity securities, other than option securities, that are traded on a U.S. securities exchange and other equity securities traded in the over-the-counter market are valued at the mean between the most recent bid and asked quotations on its principle exchange in accordance with guidelines adopted by the board of trustees. Each option security traded on a U.S. securities exchange is valued at the mid-point of the consolidated bid/ask quote for the option security, also in accordance with guidelines adopted by the board of trustees. Each over-the-counter option that is not traded through the Options Clearing Corporation is valued based on a quotation provided by the counterparty to such option under the ultimate supervision of the board of trustees.

Fixed income securities, certain convertible preferred securities, and non-exchange traded derivatives are normally valued by independent pricing services or by dealers or brokers who make markets in such securities. Valuations of such fixed income securities, certain convertible preferred securities, and non-exchange traded derivatives consider yield or price of equivalent securities of comparable quality, coupon rate, maturity, type of issue, trading characteristics and other market data and do not rely exclusively upon exchange or over-the-counter prices.

Trading on European and Far Eastern exchanges and over-the-counter markets is typically completed at various times before the close of business on each day on which the New York Stock Exchange (“NYSE”) is open. Each security trading on these exchanges or over-the-counter markets may be valued utilizing a systematic fair valuation model provided by an independent pricing service approved by the board of trustees. The valuation of each security that meets certain criteria in relation to the valuation model is systematically adjusted to reflect the impact of movement in the U.S. market after the foreign markets close. Securities that do not meet the criteria, or that are principally traded in other foreign markets, are valued as of the last reported sale price at the time the Fund determines its NAV, or when reliable market prices or quotations are not readily available, at the mean between the most recent bid and asked quotations as of the close of the appropriate exchange or other designated time. Trading of foreign securities may not take place on every NYSE business day. In addition, trading may take place in various foreign markets on Saturdays or on other days when the NYSE is not open and on which the Fund’s NAV is not calculated.

If the pricing committee determines that the valuation of a security in accordance with the methods described above is not reflective of a fair value for such security, the security is valued at a fair value by the pricing committee, under the ultimate supervision of the board of trustees, following the guidelines and/or procedures adopted by the board of trustees.

The Fund also may use fair value pricing, pursuant to guidelines adopted by the board of trustees and under the ultimate supervision of the board of trustees, if trading in the security is halted or if the value of a security it holds is materially affected by events occurring before the Fund’s pricing time but after the close of the primary market or exchange on which the security is listed. Those procedures may utilize valuations furnished by pricing services approved by the board of trustees, which may be based on market transactions for comparable securities and various relationships between securities that are generally recognized by institutional traders, a computerized matrix system, or appraisals derived from information concerning the securities or similar securities received from recognized dealers in those securities.

When fair value pricing of securities is employed, the prices of securities used by a Fund to calculate its NAV may differ from market quotations or official closing prices. In light of the judgment involved in fair valuations, there can be no assurance that a fair value assigned to a particular security is accurate.

Investment Transactions. Investment transactions are recorded on a trade date basis as of July 31, 2014.

Foreign Currency Translation. Values of investments and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars using a rate quoted by a major bank or dealer in the particular currency market, as reported by a recognized quotation dissemination service.

Option Transactions. For hedging and investment purposes, the Fund may purchase or write (sell) put and call options. One of the risks associated with purchasing an option is that the Fund pays a premium whether or not the option is exercised. Additionally, the Fund bears the risk of loss of premium and change in value should the counterparty not perform under the contract. The Fund as writer of an option bears the market risk of an unfavorable change in the price of the security underlying the written option.

NOTE 2 — INVESTMENTS

The following information is presented on a federal income tax basis as of July 31, 2014. Differences between the cost basis under U.S. generally accepted accounting principles and federal income tax purposes are primarily due to temporary differences.

The cost basis of investments for federal income tax purposes at July 31, 2014 was as follows:

Cost basis of investments $
Gross unrealized appreciation 108,390,632
Gross unrealized depreciation (27,354,015 )
Net unrealized appreciation (depreciation) $ 81,036,617

NOTE 3 — BORROWINGS

The Fund, with the approval of its board of trustees, including its independent trustees, has entered into a financing package that includes a Committed Facility Agreement (the “BNP Agreement”) with BNP Paribas Prime Brokerage International Ltd. (“BNP”) that allows the Fund to borrow up to $200.0 million and a lending agreement, (Lending Agreement) as defined below. In addition, the financing package also includes a Credit Agreement (the “SSB Agreement”), together with the BNP Agreement, (“Agreements”) with State Street Bank and Trust Company (“SSB”) that allows the Fund to borrow up to an initial limit of $200.0 million, and a related securities lending authorization agreement (“Authorized Agreement”). Borrowings under the BNP Agreement and the SSB Agreement are secured by assets of the Fund that are held with the Fund’s custodian in a separate account (the “pledged collateral”). BNP and SSB share an equal claim on the pledged collateral, subject to any adjustment that may be agreed upon between the lenders. Interest on the BNP Agreement is charged at the three month LIBOR (London Inter-bank Offered Rate) plus .65% on the amount borrowed and .55% on the undrawn balance. Interest on the SSB Agreement is charged on the drawn amount at the rate of Overnight LIBOR plus .80% and .10% on the undrawn balance (if the undrawn amount is more than 75% of the borrowing limit, the commitment fee is .20%). For the period ended July 31, 2014, the average borrowings under the Agreements were $351.6 million. For the period ended July 31, 2014, the average interest rate was 0.53%. As of July 31, 2014, the amount of total outstanding borrowings was $360.0 million, which approximates fair value. The interest rate applicable to the borrowings on July 31, 2014 was 0.89%.

The Lending Agreement with BNP is a separate side-agreement between the Fund and BNP pursuant to which BNP may borrow a portion of the pledged collateral (the “Lent Securities”) in an amount not to exceed the outstanding borrowings owed by the Fund to BNP under the BNP Agreement. The Lending Agreement is intended to permit the Fund to significantly reduce the cost of its borrowings under the BNP Agreement. BNP may re-register the Lent Securities in its own name or in another name other than the Fund, and may pledge, re-pledge, sell, lend or otherwise transfer or use the Lent Securities with all attendant rights of ownership. (It is the Fund’s understanding that BNP will perform due diligence to determine the creditworthiness of any party that borrows Lent Securities from BNP.) The Fund may designate any security within the pledged collateral as ineligible to be a Lent Security, provided there are eligible securities within the pledged collateral in an amount equal to the outstanding borrowing owed by the Fund. During the period in which the Lent Securities are outstanding, BNP must remit payment to the Fund equal to the amount of all dividends, interest or other distributions earned or made by the Lent Securities.

Under the terms of the Lending Agreement with BNP, the Lent Securities are marked to market daily, and if the value of the Lent Securities exceeds the value of the then-outstanding borrowings owed by the Fund to BNP under the Agreement (the “Current Borrowings”), BNP must, on that day, either (1) return Lent Securities to the Fund’s custodian in an amount sufficient to cause the value of the outstanding Lent Securities to equal the Current Borrowings; or (2) post cash collateral with the Fund’s custodian equal to the difference between the value of the Lent Securities and the value of the Current Borrowings. If BNP fails to perform either of these actions as required, the Fund will recall securities, as discussed below, in an amount sufficient to cause the value of the outstanding Lent Securities to equal the Current Borrowings. The Fund can recall any of the Lent Securities and BNP shall, to the extent commercially possible, return such security or equivalent security to the Fund’s custodian no later than three business days after such request. If the Fund recalls a Lent Security pursuant to the Lending Agreement, and BNP fails to return the Lent Securities or equivalent securities in a timely fashion, BNP shall remain liable to the Fund’s custodian for the ultimate delivery of such Lent Securities, or equivalent securities, and for any buy-in costs that the executing broker for the sales transaction may

impose with respect to the failure to deliver. The Fund shall also have the right to apply and set-off an amount equal to one hundred percent (100%) of the then-current fair market value of such Lent Securities against the Current Borrowings.

Under the terms of the Authorized Agreement with SSB, all securities lent through SSB must be secured continuously by collateral received in cash, cash equivalents, or U.S. Treasury bills and maintained on a current basis at an amount at least equal to the market value of the securities loaned. Cash collateral held by SSB on behalf of the Fund may be credited against the amounts borrowed under the SSB Agreement. Any amounts credited against the SSB Agreement would count against the Fund’s leverage limitations under the 1940 Act, unless otherwise covered in accordance with SEC release IC-10666. Under the terms of the Authorized Agreement with SSB, SSB will return the value of the collateral to the borrower upon the return of the lent securities, which will eliminate the credit against the SSB Agreement and will cause the amount drawn under the SSB Agreement to increase in an amount equal to the returned collateral. Under the terms of the securities Authorized Agreement with SSB, the Fund will make a variable “net income” payment related to any collateral credited against the SSB Agreement which will be paid to the securities borrower, less any payments due to the Fund or SSB under the terms of the Authorized Agreement. As of July 31, 2014, the Fund used approximately $156.2 million of its cash collateral to offset the SSB Agreement, representing 12.2% of managed assets, and was required to pay a “net income” payment equal to an annualized interest rate of 0.66%, which can fluctuate depending on interest rates.

NOTE 4 — INTEREST RATE SWAPS

The Fund engages in interest rate swaps primarily to hedge the interest rate risk on the Fund’s borrowings (see Note 3 — Borrowings). An interest rate swap is a contract that involves the exchange of one type of interest rate for another type of interest rate. If interest rates rise, resulting in a diminution in the value of the Fund’s portfolio, the Fund would receive payments under the swap that would offset, in whole or in part, such diminution in value; if interest rates fall, the Fund would likely lose money on the swap transaction. Swap agreements are stated at fair value. Notional principal amounts are used to express the extent of involvement in these transactions, but the amounts potentially subject to credit risk are much smaller. In connection with these contracts, securities may be identified as collateral in accordance with the terms of the respective swap contracts in the event of default or bankruptcy of the Fund.

NOTE 5 — FAIR VALUE MEASUREMENTS

Various inputs are used to determine the value of the Fund’s investments. These inputs are categorized into three broad levels as follows:

• Level 1 — Prices are determined using inputs from unadjusted quoted prices from active markets (including securities actively traded on a securities exchange) for identical assets.

• Level 2 — Prices are determined using significant observable market inputs other than unadjusted quoted prices, including quoted prices of similar securities, fair value adjustments to quoted foreign securities, interest rates, credit risk, prepayment speeds, and other relevant data.

• Level 3 — Prices reflect unobservable market inputs (including the Fund’s own judgments about assumptions market participants would use in determining fair value) when observable inputs are unavailable.

Debt securities are valued based upon evaluated prices received from an independent pricing service or from a dealer or broker who makes markets in such securities. Pricing services utilize various observable market data and as such, debt securities are generally categorized as Level 2. The levels are not necessarily an indication of the risk or liquidity of the Fund’s investments. Transfers between the levels for investment securities or other financial instruments are measured at the end of the reporting period.

The following is a summary of the inputs used in valuing the Fund’s holdings at fair value:

Level 1 Level 2 Level 3 Total
Assets:
Corporate Bonds $ — $ 448,193,721 $ — $ 448,193,721
Convertible Bonds — 455,098,667 — 455,098,667
U.S. Government and Agency Security — 844,247 — 844,247
Synthetic Convertible Securities (Corporate Bonds) — 135,989,912 — 135,989,912
Synthetic Convertible Securities (U.S. Government and Agency Security) — 256,075 — 256,075
Synthetic Convertible Securities (Purchased Options) 24,043,730 — — 24,043,730
Convertible Preferred Stocks 122,938,782 62,546,397 — 185,485,179
Common Stocks U.S. 3,305,823 — — 3,305,823
Short Term Investment 23,553,052 — — 23,553,052
Total $ 173,841,387 $ 1,102,929,019 $ — $ 1,276,770,406
Liabilities:
Interest Rate Swaps $ — $ 386,165 $ — $ 386,165
Total $ — $ 386,165 $ — $ 386,165

ITEM 2. CONTROLS AND PROCEDURES.

a) The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-Q was recorded, processed, summarized, and reported timely.

b) There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) that occurred during the registrant’s last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

ITEM 3. EXHIBITS.

(a) Certification of Principal Executive Officer.

(b) Certification of Principal Financial Officer.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Calamos Convertible Opportunities and Income Fund
By: /s/ John P. Calamos, Sr.
Name: John P. Calamos, Sr.
Title: Principal Executive Officer
Date: September 18, 2014

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Calamos Convertible Opportunities and Income Fund
By: /s/ John P. Calamos, Sr.
Name: John P. Calamos, Sr.
Title: Principal Executive Officer
Date: September 18, 2014
By: /s/ Nimish S. Bhatt
Name: Nimish S. Bhatt
Title: Principal Financial Officer
Date: September 18, 2014

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