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CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND

Regulatory Filings Sep 1, 2017

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N-Q 1 chi-nq_073117.htm QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS 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., Founder, Chairman and Global Chief Investment Officer 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, 2017

DATE OF REPORTING PERIOD: July 31, 2017

ITEM 1. SCHEDULE OF INVESTMENTS JULY 31, 2017 (UNAUDITED)

| Calamos
Convertible Opportunities and Income Fund |
| --- |
| SCHEDULE OF INVESTMENTS
JULY 31, 2017 (UNAUDITED) |

PRINCIPAL AMOUNT VALUE
CORPORATE BONDS (53.2%)
Consumer Discretionary (13.6%)
594,000 Altice US Finance
I Corp.*µ 5.500%, 05/15/26 $ 630,448
930,000 AV Homes, Inc.* 6.625%, 05/15/22 964,363
1,345,000 Beverages &
More, Inc.* 11.500%, 06/15/22 1,279,895
CalAtlantic Group,
Inc.
5,498,000 6.625%, 05/01/20^ 6,099,701
1,490,000 5.375%, 10/01/22 1,621,992
2,549,000 CCO Holdings, LLC
/ CCO Holdings Capital Corp.* 5.125%, 05/01/27 2,637,654
Century Communities,
Inc.
1,359,000 6.875%, 05/15/22µ 1,430,449
890,000 5.875%, 07/15/25* 893,520
6,109,000 Cooper Tire &
Rubber Company 8.000%, 12/15/19 6,835,849
3,399,000 Dana Financing
Luxembourg Sarl*^ 6.500%, 06/01/26 3,647,790
DISH DBS Corp.
3,894,000 7.875%, 09/01/19µ 4,304,486
2,034,000 5.875%, 11/15/24 2,212,138
GameStop Corp.*
1,500,000 5.500%, 10/01/19 1,543,522
1,125,000 6.750%, 03/15/21^ 1,166,923
2,333,000 Golden Nugget,
Inc.* 8.500%, 12/01/21 2,476,421
2,369,000 Hasbro, Inc.µ 6.600%, 07/15/28 2,745,742
L Brands, Inc.
2,999,000 7.600%, 07/15/37µ 2,980,646
1,200,000 6.875%, 11/01/35 1,156,698
850,000 5.625%, 02/15/22 893,613
680,000 6.950%, 03/01/33 659,671
1,409,000 Liberty Interactive,
LLC 8.250%, 02/01/30 1,542,714
330,000 Mclaren Finance,
PLC* 5.750%, 08/01/22 339,379
Meritage Homes
Corp.
3,399,000 7.150%, 04/15/20 3,771,921
1,907,000 7.000%, 04/01/22 2,176,020
2,499,000 MGM Resorts Internationalµ 6.750%, 10/01/20 2,780,975
Netflix, Inc.
2,824,000 5.375%, 02/01/21 3,063,475
2,345,000 5.500%, 02/15/22 2,550,187
2,299,000 Penske Automotive
Group, Inc. 5.375%, 12/01/24 2,317,220
PetSmart, Inc.*^
680,000 5.875%, 06/01/25 655,064
500,000 8.875%, 06/01/25 473,438
1,899,000 Reliance Intermediate
Holdings, LP* 6.500%, 04/01/23 2,033,468
Rite Aid Corp.
2,184,000 6.125%, 04/01/23*^ 2,170,132
1,585,000 7.700%, 02/15/27 1,577,590
3,864,000 Royal Caribbean
Cruises, Ltd.µ 7.500%, 10/15/27 5,099,186
2,184,000 Salem Media Group,
Inc.* 6.750%, 06/01/24 2,270,705
PRINCIPAL AMOUNT VALUE
1,352,000 Sally Holdings,
LLC / Sally Capital, Inc.^ 5.625%, 12/01/25 $ 1,387,862
3,499,000 Service Corp. International 7.500%, 04/01/27 4,220,284
SFR Group, SA*
2,799,000 6.000%, 05/15/22µ^ 2,931,309
1,600,000 7.375%, 05/01/26 1,734,224
3,449,000 Sirius XM Radio,
Inc.*^ 6.000%, 07/15/24 3,723,282
2,997,000 Taylor Morrison
Communities, Inc.* 5.250%, 04/15/21 3,076,945
2,345,000 Time, Inc.*^ 5.750%, 04/15/22 2,434,767
4,248,000 Toll Brothers Finance
Corp.µ 5.625%, 01/15/24 4,620,911
ZF North America
Capital, Inc.*
2,349,000 4.750%, 04/29/25 2,460,413
1,426,000 4.500%, 04/29/22µ^ 1,500,979
107,093,971
Consumer
Staples (2.4%)
3,649,000 Fidelity &
Guaranty Life Holdings, Inc.* 6.375%, 04/01/21 3,773,796
2,199,000 Fresh Market, Inc.*^ 9.750%, 05/01/23 1,808,941
4,966,000 JBS USA LUX SA
/ JBS USA Finance, Inc.*µ 7.250%, 06/01/21 5,064,302
5,398,000 Land O’Lakes, Inc.*µ^ 6.000%, 11/15/22 5,981,011
2,299,000 The Nature’s Bounty
Company*^ 7.625%, 05/15/21 2,480,587
19,108,637
Energy (5.6%)
2,229,000 Atwood Oceanics,
Inc.^ 6.500%, 02/01/20 2,200,647
1,200,000 Bill Barrett Corp.^ 7.000%, 10/15/22 1,093,386
2,049,000 Blue Racer Midstream,
LLC / Blue Racer Finance Corp.*^ 6.125%, 11/15/22 2,100,727
2,249,000 Calfrac Holdings,
LP* 7.500%, 12/01/20 2,066,302
1,350,000 Carrizo Oil &
Gas, Inc.^ 6.250%, 04/15/23 1,343,898
2,449,000 DCP Midstream,
LLC*‡ 5.850%, 05/21/43 3 mo. USD LIBOR + 3.85% 2,286,178
5,464,000 Drill Rigs Holdings,
Inc.*@ 6.500%, 10/01/17 1,410,395
Energy Transfer
Equity, LP
2,529,000 4.328%, 11/01/66‡ 3 mo. USD LIBOR + 3.02% 2,235,004
1,899,000 5.875%, 01/15/24 2,053,104
875,000 5.500%, 06/01/27 920,758
1,125,000 EP Energy, LLC
/ Everest Acquisition Finance, Inc.*µ^ 8.000%, 02/15/25 878,282
3,549,000 Gulfmark Offshore,
Inc.@ 6.375%, 03/15/22 993,720

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 1; Options: NewSection; Value: 1

1

Field: /Page

Calamos Convertible Opportunities and Income Fund
SCHEDULE OF INVESTMENTS JULY 31, 2017 (UNAUDITED)
PRINCIPAL AMOUNT VALUE
Gulfport Energy
Corp.*^
1,200,000 6.375%, 05/15/25 $ 1,201,608
1,155,000 6.000%, 10/15/24 1,143,259
5,498,000 Laredo Petroleum,
Inc.^ 7.375%, 05/01/22 5,708,051
3,099,000 MPLX, LPµ 4.875%, 06/01/25 3,329,023
Oasis Petroleum,
Inc.^
2,114,000 6.500%, 11/01/21 2,109,878
1,250,000 6.875%, 01/15/23 1,234,550
1,374,500 Petroleum Geo Services
Company*^ 7.375%, 12/15/20 1,256,458
377,000 Rice Energy, Inc. 7.250%, 05/01/23 405,888
4,998,000 SEACOR Holdings,
Inc.µ^ 7.375%, 10/01/19 5,074,219
1,100,000 Southwestern Energy
Company^ 6.700%, 01/23/25 1,086,718
W&T Offshore,
Inc.*
1,480,463 9.000%, 05/15/20 10.750% PIK rate 1,250,991
1,325,116 8.500%, 06/15/21 10.000% PIK rate 937,520
44,320,564
Financials
(4.7%)
3,546,000 Ally Financial,
Inc.µ 8.000%, 11/01/31 4,414,681
2,400,000 AON Corp.µ 8.205%, 01/01/27 3,158,736
750,000 Ardonagh Midco
3, PLC* 8.625%, 07/15/23 772,140
2,199,000 AssuredPartners,
Inc.* 7.000%, 08/15/25 2,223,849
2,056,000 Brookfield Residential
Properties, Inc.* 6.375%, 05/15/25 2,165,163
CyrusOne, LP /
CyrusOne Finance Corp.*µ
1,100,000 5.375%, 03/15/27 1,161,847
320,000 5.000%, 03/15/24 333,306
1,984,000 Dell International,
LLC / EMC Corp.*µ 6.020%, 06/15/26 2,213,757
1,999,000 Equinix, Inc.µ 5.375%, 04/01/23 2,088,885
2,499,000 GLP Capital, LP
/ GLP Financing II, Inc.^ 5.375%, 04/15/26 2,727,096
1,050,000 HUB International,
Ltd.* 7.875%, 10/01/21 1,099,544
Jefferies Finance,
LLC*
2,849,000 7.375%, 04/01/20 2,933,758
2,599,000 7.250%, 08/15/24 2,606,563
1,100,000 Lions Gate Entertainment
Corp.*^ 5.875%, 11/01/24 1,159,147
2,289,000 Nationstar Mortgage,
LLC / Nationstar Capital Corp. 6.500%, 07/01/21 2,352,279
Navient Corp.
970,000 6.750%, 06/25/25 1,020,542
632,000 6.500%, 06/15/22^ 674,123
500,000 Oil Insurance,
Ltd.*µ‡ 4.278%, 12/29/49 3 mo. USD LIBOR + 2.98% 455,283
PRINCIPAL AMOUNT VALUE
2,699,000 Quicken Loans,
Inc.* 5.750%, 05/01/25 $ 2,835,340
670,000 Towne Bank‡ 4.500%, 07/30/27 3 mo. USD LIBOR + 2.55% 680,898
37,076,937
Health
Care (6.0%)
3,999,000 Acadia Healthcare
Company, Inc.^ 5.625%, 02/15/23 4,177,175
3,224,000 Alere, Inc. 6.500%, 06/15/20 3,281,371
Community Health
Systems, Inc.
3,754,000 7.125%, 07/15/20^ 3,638,208
1,225,000 6.875%, 02/01/22 1,046,352
3,099,000 DaVita, Inc. 5.125%, 07/15/24 3,192,760
678,000 Endo International,
PLC* 7.250%, 01/15/22 673,515
2,799,000 Endo, Ltd.*^ 6.000%, 07/15/23 2,426,873
1,370,000 Greatbatch, Ltd.* 9.125%, 11/01/23 1,505,240
HCA Holdings, Inc.
7,998,000 5.875%, 05/01/23^ 8,743,374
1,939,000 6.250%, 02/15/21 2,106,074
1,070,000 Hologic, Inc.* 5.250%, 07/15/22 1,131,798
2,249,000 Mallinckrodt International
Finance, SA / Mallinckrodt CB, LLC*^ 5.625%, 10/15/23 2,150,584
6,148,000 Tenet Healthcare
Corp. 6.750%, 02/01/20 6,460,595
Valeant Pharmaceuticals
International, Inc.*^
6,748,000 7.250%, 07/15/22 6,384,789
360,000 7.000%, 03/15/24 383,911
47,302,619
Industrials
(5.3%)
1,450,000 ACCO Brands Corp.* 5.250%, 12/15/24 1,512,611
525,000 Allison Transmission,
Inc.*µ 5.000%, 10/01/24 543,015
440,000 American Greetings
Corp.* 7.875%, 02/15/25 479,776
Covanta Holding
Corp.
850,000 5.875%, 03/01/24 832,078
290,000 5.875%, 07/01/25 283,490
537,000 DAE Funding, LLC* 5.000%, 08/01/24 548,650
2,204,000 Garda World Security
Corp.* 7.250%, 11/15/21 2,252,763
900,000 GrafTech International,
Ltd. 6.375%, 11/15/20 837,293
1,075,000 Great Lakes Dredge
& Dock Co.* 8.000%, 05/15/22 1,100,950
4,554,000 H&E Equipment
Services, Inc. 7.000%, 09/01/22 4,733,792
270,000 Hertz Corp.*^ 7.625%, 06/01/22 267,185
545,000 Icahn Enterprises,
LP 4.875%, 03/15/19 552,570

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 2; Value: 1

2

Field: /Page

Convertible Opportunities and Income Fund
SCHEDULE OF INVESTMENTS JULY 31, 2017 (UNAUDITED)
PRINCIPAL AMOUNT VALUE
1,150,000 James Hardie International
Finance, Ltd.* 5.875%, 02/15/23 $ 1,214,958
535,000 Kar Auction Services,
Inc.* 5.125%, 06/01/25 558,385
850,000 Match Group, Inc. 6.375%, 06/01/24 930,108
Meritor, Inc.
2,052,000 6.250%, 02/15/24 2,166,348
1,605,000 6.750%, 06/15/21 1,661,488
Michael Baker International,
LLC*
2,083,000 8.250%, 10/15/18 2,079,376
1,499,877 8.875%, 04/15/19 9.625% PIK rate 1,479,584
2,734,000 Navistar International
Corp.^ 8.250%, 11/01/21 2,769,200
2,199,000 Park-Ohio Industries,
Inc.*^ 6.625%, 04/15/27 2,334,535
1,000,000 Titan International,
Inc.^ 6.875%, 10/01/20 1,038,770
2,349,000 TransDigm, Inc. 5.500%, 10/15/20 2,393,185
2,299,000 United Continental
Holdings, Inc. 6.375%, 06/01/18 2,388,224
United Rentals
North America, Inc.
1,919,000 6.125%, 06/15/23^ 2,002,879
1,340,000 4.875%, 01/15/28 1,343,350
934,000 7.625%, 04/15/22^ 977,221
1,984,000 United States Steel
Corp.* 8.375%, 07/01/21 2,198,203
619,000 WESCO Distribution,
Inc. 5.375%, 06/15/24 651,194
42,131,181
Information Technology (5.4%)
2,999,000 Alliance Data Systems
Corp.* 6.375%, 04/01/20 3,054,991
Amkor Technology,
Inc.^
3,289,000 6.375%, 10/01/22µ 3,439,307
470,000 6.625%, 06/01/21 481,017
Cardtronics, Inc.µ
1,924,000 5.125%, 08/01/22 1,974,967
1,555,000 5.500%, 05/01/25* 1,601,051
1,385,000 CBS Radio, Inc.*^ 7.250%, 11/01/24 1,464,430
530,000 CDK Global, Inc.*µ 4.875%, 06/01/27 545,420
845,000 CDW, LLC / CDW
Finance Corp.µ 5.000%, 09/01/23 884,855
Clear Channel Worldwide
Holdings, Inc.
2,244,000 7.625%, 03/15/20^ 2,251,618
835,000 7.625%, 03/15/20 841,300
2,799,000 CommScope Technologies,
LLC*µ 6.000%, 06/15/25 3,020,219
3,399,000 First Data Corp.* 7.000%, 12/01/23 3,669,747
6,498,000 Hughes Satellite
Systems Corp.µ^ 7.625%, 06/15/21 7,479,555
3,999,000 J2 Cloud Services,
Inc. 8.000%, 08/01/20 4,078,980
Nuance Communications,
Inc.
1,385,000 5.625%, 12/15/26* 1,478,772
1,200,000 6.000%, 07/01/24 1,285,968
PRINCIPAL AMOUNT VALUE
776,000 5.375%, 08/15/20* $ 789,728
1,065,000 VFH Parent, LLC* 6.750%, 06/15/22 1,118,250
3,399,000 ViaSat, Inc. 6.875%, 06/15/20 3,474,033
42,934,208
Materials (4.7%)
ArcelorMittal,
SA
3,299,000 6.125%, 06/01/25µ^ 3,785,784
2,429,000 7.500%, 10/15/39 2,867,860
1,450,000 Arconic, Inc.^ 5.125%, 10/01/24 1,544,410
2,224,000 Ardagh Packaging
Finance, PLC / Ardagh Holdings USA, Inc.* 6.000%, 02/15/25 2,374,620
First Quantum Minerals,
Ltd.*
748,000 7.000%, 02/15/21 777,015
600,000 7.250%, 04/01/23 619,728
360,000 7.500%, 04/01/25^ 370,141
Freeport-McMoRan,
Inc.^
1,899,000 4.550%, 11/14/24 1,856,728
600,000 3.550%, 03/01/22 586,020
4,409,000 Greif, Inc. 7.750%, 08/01/19 4,854,045
2,499,000 Huntsman International,
LLC 5.125%, 11/15/22 2,661,885
1,799,000 INEOS Group Holdings,
SA*^ 5.625%, 08/01/24 1,863,116
765,000 Kinross Gold Corp.* 4.500%, 07/15/27 763,068
370,000 Koppers, Inc.*^ 6.000%, 02/15/25 395,778
785,000 New Gold, Inc.* 6.375%, 05/15/25 814,661
2,349,000 PH Glatfelter Company 5.375%, 10/15/20 2,400,795
Sealed Air Corp.*
2,054,000 6.500%, 12/01/20 2,292,459
900,000 5.250%, 04/01/23 969,701
1,095,000 Steel Dynamics,
Inc. 5.000%, 12/15/26 1,156,358
3,999,000 Trinseo Materials
Operating, SCA*µ 6.750%, 05/01/22 4,238,580
37,192,752
Real Estate (0.6%)
1,257,000 Crescent Communities,
LLC/Crescent Ventures, Inc.* 8.875%, 10/15/21 1,322,798
DuPont Fabros Technology,
LP
1,300,000 5.875%, 09/15/21µ 1,346,852
925,000 5.625%, 06/15/23 989,912
290,000 Iron Mountain,
Inc.* 6.000%, 10/01/20 300,466
540,000 M/I Homes, Inc.* 5.625%, 08/01/25 545,400
4,505,428
Telecommunication Services (3.6%)
221,000 Block Communications,
Inc.*µ 6.875%, 02/15/25 239,887
425,000 CenturyLink, Inc.^ 7.500%, 04/01/24 462,644

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 3; Value: 1

3

Field: /Page

| Calamos
Convertible Opportunities and Income Fund |
| --- |
| SCHEDULE
OF INVESTMENTS JULY 31, 2017 (UNAUDITED) |

PRINCIPAL AMOUNT VALUE
1,200,000 CSC Holdings,
LLC*µ 5.500%, 04/15/27 $ 1,275,462
3,135,000 Embarq Corp. 7.995%, 06/01/36 3,192,684
Frontier Communications
Corp.
2,781,000 7.625%, 04/15/24^ 2,268,628
1,974,000 11.000%, 09/15/25^ 1,804,907
1,580,000 10.500%, 09/15/22 1,487,997
286,000 6.875%, 01/15/25^ 226,641
Intelsat Jackson Holdings,
SA
1,140,000 7.500%, 04/01/21 1,083,000
1,075,000 9.750%, 07/15/25* 1,111,647
985,000 8.000%, 02/15/24* 1,070,670
Sprint Corp.
6,998,000 7.875%, 09/15/23 7,946,124
1,480,000 7.125%, 06/15/24 1,635,348
2,349,000 T-Mobile USA, Inc. 6.625%, 04/01/23 2,487,967
870,000 Windstream Corp. 7.750%, 10/15/20 838,280
950,000 Windstream Services,
LLC 7.750%, 10/01/21 855,356
27,987,242
Utilities (1.3%)
2,999,000 AES Corp.µ 7.375%, 07/01/21 3,436,404
4,499,000 Calpine Corp.*µ 6.000%, 01/15/22 4,651,561
2,104,000 NRG Energy, Inc.^ 6.625%, 01/15/27 2,164,375
10,252,340
TOTAL
CORPORATE BONDS (Cost $411,216,687) 419,905,879
Convertible
Bonds (64.0%)
Consumer Discretionary
(13.1%)
Ctrip.com International,
Ltd.
3,200,000 1.000%, 07/01/20 3,910,512
3,010,000 1.250%, 09/15/22* 3,410,044
9,500,000 DISH Network Corp.*^ 2.375%, 03/15/24 10,171,793
5,571,000 Liberty Expedia Holdings,
Inc.*^ 1.000%, 06/30/47 6,057,432
Liberty Interactive,
LLC
5,350,000 1.750%, 09/30/46*µ 6,643,924
2,012,000 4.000%, 11/15/29 1,374,387
Liberty Media Corp.^
8,550,000 1.375%, 10/15/23 10,835,116
5,350,000 2.250%, 09/30/46* 5,755,637
2,750,000 Liberty Media Corp./Liberty
Formula One* 1.000%, 01/30/23 3,114,746
5,300,000 Macquarie Infrastructure
Corp.µ^ 2.000%, 10/01/23 5,250,975
14,340,000 Priceline Group, Inc.µ^ 0.900%, 09/15/21 17,192,011
22,850,000 Tesla, Inc.µ^ 1.250%, 03/01/21 25,091,356
4,400,000 Weatherford International,
Ltd.^ 5.875%, 07/01/21 4,668,708
103,476,641
PRINCIPAL AMOUNT VALUE
Energy (1.7%)
5,250,000 Nabors Industries, Inc.*µ^ 0.750%, 01/15/24 $ 4,134,926
4,700,000 PDC Energy, Inc. 1.125%, 09/15/21 4,439,549
5,370,000 SM Energy Company^ 1.500%, 07/01/21 5,046,243
13,620,718
Financials (1.8%)
5,500,000 Ares Capital Corp.*µ^ 3.750%, 02/01/22 5,573,645
6,500,000 CAD Element Fleet Management Corp.* 4.250%, 06/30/20 5,159,334
3,125,000 TCP Capital Corp.*µ^ 4.625%, 03/01/22 3,213,985
13,946,964
Health Care (10.2%)
2,400,000 Acorda Therapeutics, Inc. 1.750%, 06/15/21 2,129,424
BioMarin Pharmaceutical, Inc.
5,711,000 1.500%, 10/15/20^ 6,742,064
4,600,000 0.750%, 10/15/18 5,076,951
2,750,000 Dexcom, Inc.* 0.750%, 05/15/22 2,723,504
5,950,000 Emergent Biosolutions, Inc. 2.875%, 01/15/21 8,053,414
5,275,000 Evolent Health, Inc.* 2.000%, 12/01/21 6,740,158
3,500,000 Flexion Therapeutics, Inc.* 3.375%, 05/01/24 3,876,285
8,300,000 Hologic, Inc.** 0.000%, 12/15/43 10,356,449
5,350,000 Insulet Corp.* 1.250%, 09/15/21 5,838,402
5,400,000 Ionis Pharmaceuticals, Inc.^ 1.000%, 11/15/21 5,826,762
2,500,000 Ironwood Pharmaceuticals, Inc. 2.250%, 06/15/22 3,225,900
4,739,000 Medidata Solutions, Inc. 1.000%, 08/01/18 6,551,999
4,342,000 Molina Healthcare, Inc.µ^ 1.625%, 08/15/44 5,447,278
2,750,000 Neurocrine Biosciences, Inc.*^ 2.250%, 05/15/24 2,812,384
4,050,000 NuVasive, Inc. 2.250%, 03/15/21 5,059,766
80,460,740
Industrials (6.9%)
5,300,000 Aerojet Rocketdyne Holdings, Inc.* 2.250%, 12/15/23 6,024,563
2,022,000 Air Lease Corp.µ^ 3.875%, 12/01/18 2,925,025
5,150,000 Atlas Air Worldwide Holdings, Inc.^ 2.250%, 06/01/22 5,735,967
9,100,000 Dycom Industries, Inc.µ^ 0.750%, 09/15/21 10,700,144
8,000,000 Greenbrier Companies, Inc.*^ 2.875%, 02/01/24 8,685,200

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 4; Value: 1

4

Field: /Page

| Convertible
Opportunities and Income Fund |
| --- |
| SCHEDULE
OF INVESTMENTS JULY 31, 2017 (UNAUDITED) |

PRINCIPAL AMOUNT VALUE
3,750,000 Kaman Corp.* 3.250%, 05/01/24 $ 3,927,413
10,750,000 Pacira Pharmaceuticals,
Inc.*^ 2.375%, 04/01/22 10,858,199
5,200,000 Tutor Perini Corp. 2.875%, 06/15/21 5,981,872
54,838,383
Information Technology
(28.0%)
3,300,000 Citrix Systems, Inc. 0.500%, 04/15/19 3,925,020
4,400,000 Cypress Semiconductor
Corp.^ 4.500%, 01/15/22 5,570,994
10,600,000 Finisar Corp.*^ 0.500%, 12/15/36 10,616,642
8,350,000 Inphi Corp.*^ 0.750%, 09/01/21 8,457,882
11,350,000 Intel Corp.µ 3.250%, 08/01/39 19,604,004
3,900,000 Knowles Corp.^ 3.250%, 11/01/21 4,349,124
4,750,000 Lumentum Holdings, Inc.*^ 0.250%, 03/15/24 5,914,747
16,500,000 Microchip Technology,
Inc.*^ 1.625%, 02/15/27 18,288,930
6,225,000 Micron Technology, Inc.µ^ 2.125%, 02/15/33 16,192,283
5,250,000 Nice Systems, Inc.*^ 1.250%, 01/15/24 5,689,740
2,500,000 Novellus Systems, Inc.µ 2.625%, 05/15/41 11,819,962
ON Semiconductor Corp.^
6,400,000 1.000%, 12/01/20 6,888,096
5,250,000 1.625%, 10/15/23* 5,441,888
5,500,000 OSI Systems, Inc.*^ 1.250%, 09/01/22 5,550,023
2,500,000 Pandora Media, Inc. 1.750%, 12/01/20 2,376,425
7,450,000 Proofpoint, Inc.^ 0.750%, 06/15/20 9,297,898
5,500,000 Realpage, Inc.* 1.500%, 11/15/22 6,254,875
2,700,000 Red Hat, Inc.µ^ 0.250%, 10/01/19 3,830,679
5,150,000 Rovi Corp.^ 0.500%, 03/01/20 5,171,733
8,800,000 Salesforce.com, Inc.µ^ 0.250%, 04/01/18 12,192,444
5,575,000 Servicenow, Inc.*^ 0.000%, 06/01/22 5,818,460
5,500,000 Silicon Laboratories,
Inc.*^ 1.375%, 03/01/22 5,961,697
4,500,000 Square, Inc.*^ 0.375%, 03/01/22 5,953,905
SunEdison, Inc.@
9,411,000 0.250%, 01/15/20* 219,888
898,000 2.000%, 10/01/18 22,208
2,757,000 Synaptics, Inc.*^ 0.500%, 06/15/22 2,841,323
4,325,000 Teradyne, Inc.*^ 1.250%, 12/15/23 5,488,252
5,250,000 Veeco Instruments, Inc.^ 2.700%, 01/15/23 5,637,686
5,500,000 Viavi Solutions, Inc.* 1.000%, 03/01/24 5,925,590
PRINCIPAL AMOUNT VALUE
7,225,000 Workday,
Inc.µ^ 0.750%, 07/15/18 $ 9,281,524
5,750,000 Yahoo!, Inc.~ 0.000%, 12/01/18 6,796,184
221,380,106
Materials (1.1%)
4,700,000 Royal Gold, Inc. 2.875%, 06/15/19 5,221,935
2,800,000 RTI International Metals,
Inc. 1.625%, 10/15/19 3,111,500
8,333,435
Real Estate (1.2%)
2,300,000 Empire State Realty OP,
LP* 2.625%, 08/15/19 2,624,852
2,750,000 Starwood Property Trust,
Inc.^ 4.375%, 04/01/23 2,791,195
3,600,000 Starwood Waypoint Homes* 3.500%, 01/15/22 3,898,692
9,314,739
Total Convertible Bonds (Cost $503,206,802) 505,371,726
SYNTHETIC
CONVERTIBLE SECURITIES (0.0%) ¤
Corporate
Bonds (0.0%)
Consumer Discretionary
(0.0%)
2,000 CalAtlantic Group, Inc.^ 6.625%, 05/01/20 2,219
1,000 CCO Holdings, LLC / CCO
Holdings Capital Corp.* 5.125%, 05/01/27 1,035
2,000 Cooper Tire & Rubber
Company 8.000%, 12/15/19 2,238
1,000 Dana Financing Luxembourg
Sarl*^ 6.500%, 06/01/26 1,073
DISH DBS Corp.
1,000 7.875%, 09/01/19µ 1,105
1,000 5.875%, 11/15/24 1,088
1,000 Golden Nugget, Inc.* 8.500%, 12/01/21 1,061
1,000 Hasbro, Inc.µ 6.600%, 07/15/28 1,159
1,000 L Brands, Inc.µ 7.600%, 07/15/37 994
Meritage Homes Corp.
1,000 7.150%, 04/15/20 1,110
1,000 7.000%, 04/01/22 1,141
1,000 MGM Resorts Internationalµ 6.750%, 10/01/20 1,113
Netflix, Inc.
1,000 5.500%, 02/15/22 1,087
1,000 5.375%, 02/01/21 1,085
1,000 Penske Automotive Group,
Inc. 5.375%, 12/01/24 1,008
1,000 Reliance Intermediate
Holdings, LP* 6.500%, 04/01/23 1,071
1,000 Rite Aid Corp.*^ 6.125%, 04/01/23 994
1,000 Royal Caribbean Cruises,
Ltd.µ 7.500%, 10/15/27 1,320

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 5; Value: 1

5

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Calamos Convertible Opportunities and Income Fund
SCHEDULE OF INVESTMENTS
JULY 31, 2017 (UNAUDITED)
PRINCIPAL AMOUNT VALUE
1,000 Salem Media Group, Inc.* 6.750%, 06/01/24 $ 1,040
1,000 Service Corp. International 7.500%, 04/01/27 1,206
1,000 SFR Group, SA*µ^ 6.000%, 05/15/22 1,047
1,000 Sirius XM Radio, Inc.*^ 6.000%, 07/15/24 1,079
1,000 Taylor Morrison Communities, Inc.* 5.250%, 04/15/21 1,027
1,000 Time, Inc.*^ 5.750%, 04/15/22 1,038
1,000 Toll Brothers Finance Corp.µ 5.625%, 01/15/24 1,088
1,000 ZF North America Capital, Inc.* 4.750%, 04/29/25 1,047
30,473
Consumer Staples (0.0%)
1,000 Fidelity & Guaranty Life Holdings, Inc.* 6.375%, 04/01/21 1,034
1,000 Fresh Market, Inc.*^ 9.750%, 05/01/23 823
2,000 JBS USA LUX SA / JBS USA Finance, Inc.*µ 7.250%, 06/01/21 2,039
2,000 Land O'Lakes, Inc.*µ^ 6.000%, 11/15/22 2,216
1,000 The Nature's Bounty Company*^ 7.625%, 05/15/21 1,079
7,191
Energy (0.0%)
1,000 Atwood Oceanics, Inc.^ 6.500%, 02/01/20 987
1,000 Blue Racer Midstream, LLC / Blue Racer Finance Corp.*^ 6.125%, 11/15/22 1,025
1,000 Calfrac Holdings, LP* 7.500%, 12/01/20 919
1,000 DCP Midstream, LLC*‡ 5.850%, 05/21/43 3 mo. USD LIBOR + 3.85% 934
2,000 Drill Rigs Holdings, Inc.*@ 6.500%, 10/01/17 516
1,000 Energy Transfer Equity, LP 5.875%, 01/15/24 1,081
1,000 Energy Transfer Partners, LP‡ 4.328%, 11/01/66 3 mo. USD LIBOR + 3.02% 884
1,000 Gulfmark Offshore, Inc.@ 6.375%, 03/15/22 280
2,000 Laredo Petroleum, Inc.^ 7.375%, 05/01/22 2,076
1,000 MPLX, LPµ 4.875%, 06/01/25 1,074
1,000 Oasis Petroleum, Inc.^ 6.500%, 11/01/21 998
2,000 SEACOR Holdings, Inc.µ^ 7.375%, 10/01/19 2,031
12,805
PRINCIPAL AMOUNT VALUE
Financials (0.0%)
1,000 Ally Financial, Inc.µ 8.000%, 11/01/31 $ 1,245
1,000 AON Corp.µ 8.205%, 01/01/27 1,316
1,000 AssuredPartners, Inc.* 7.000%, 08/15/25 1,011
1,000 Brookfield Residential Properties, Inc.* 6.375%, 05/15/25 1,053
1,000 Dell International, LLC / EMC Corp.*µ 6.020%, 06/15/26 1,116
1,000 Equinix, Inc.µ 5.375%, 04/01/23 1,045
1,000 GLP Capital, LP / GLP Financing II, Inc.^ 5.375%, 04/15/26 1,091
Jefferies Finance, LLC*
1,000 7.375%, 04/01/20 1,030
1,000 7.250%, 08/15/24 1,003
1,000 Nationstar Mortgage, LLC / Nationstar Capital Corp. 6.500%, 07/01/21 1,028
1,000 Quicken Loans, Inc.* 5.750%, 05/01/25 1,050
11,988
Health Care (0.0%)
1,000 Acadia Healthcare Company, Inc.^ 5.625%, 02/15/23 1,045
1,000 Alere, Inc. 6.500%, 06/15/20 1,018
1,000 Community Health Systems, Inc.^ 7.125%, 07/15/20 969
1,000 DaVita, Inc. 5.125%, 07/15/24 1,030
1,000 Endo, Ltd.*^ 6.000%, 07/15/23 867
HCA Holdings, Inc.
2,000 5.875%, 05/01/23^ 2,187
1,000 6.250%, 02/15/21 1,086
1,000 Mallinckrodt International Finance, SA / Mallinckrodt CB, LLC*^ 5.625%, 10/15/23 956
2,000 Tenet Healthcare Corp. 6.750%, 02/01/20 2,102
2,000 Valeant Pharmaceuticals International, Inc.*^ 7.250%, 07/15/22 1,892
13,152
Industrials (0.0%)
1,000 Garda World Security Corp.* 7.250%, 11/15/21 1,022
1,000 H&E Equipment Services, Inc. 7.000%, 09/01/22 1,039
1,000 Meritor, Inc. 6.250%, 02/15/24 1,056
1,000 Michael Baker International, LLC* 8.250%, 10/15/18 998
1,000 Navistar International Corp.^ 8.250%, 11/01/21 1,013

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 6; Value: 1

6

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Convertible Opportunities and Income Fund
SCHEDULE
OF INVESTMENTS JULY 31, 2017 (UNAUDITED)
PRINCIPAL AMOUNT VALUE
1,000 Park Ohio Industries, Inc.*^ 6.625%, 04/15/27 $ 1,061
1,000 TransDigm, Inc. 5.500%, 10/15/20 1,019
1,000 United Continental Holdings, Inc. 6.375%, 06/01/18 1,039
1,000 United Rentals North America, Inc.^ 6.125%, 06/15/23 1,044
1,000 United States Steel Corp.* 8.375%, 07/01/21 1,108
10,399
Information Technology (0.0%)
1,000 Alliance Data Systems Corp.* 6.375%, 04/01/20 1,019
1,000 Amkor Technology, Inc.µ^ 6.375%, 10/01/22 1,046
1,000 Cardtronics, Inc.µ 5.125%, 08/01/22 1,026
1,000 Clear Channel Worldwide Holdings, Inc.^ 7.625%, 03/15/20 1,003
1,000 CommScope Technologies, LLC*µ 6.000%, 06/15/25 1,079
1,000 First Data Corp.* 7.000%, 12/01/23 1,080
2,000 Hughes Satellite Systems Corp.µ^ 7.625%, 06/15/21 2,302
1,000 J2 Cloud Services, Inc. 8.000%, 08/01/20 1,020
1,000 ViaSat, Inc. 6.875%, 06/15/20 1,022
10,597
Materials (0.0%)
ArcelorMittal, SA
1,000 7.500%, 10/15/39 1,181
1,000 6.125%, 06/01/25µ^ 1,147
1,000 Ardagh Packaging Finance, PLC / Ardagh Holdings USA, Inc.* 6.000%, 02/15/25 1,068
1,000 Freeport-McMoRan, Inc.^ 4.550%, 11/14/24 978
1,000 Greif, Inc. 7.750%, 08/01/19 1,101
1,000 Huntsman International, LLC 5.125%, 11/15/22 1,065
1,000 INEOS Group Holdings, SA*^ 5.625%, 08/01/24 1,036
1,000 PH Glatfelter Company 5.375%, 10/15/20 1,022
1,000 Sealed Air Corp.* 6.500%, 12/01/20 1,116
1,000 Trinseo Materials Operating, SCA*µ 6.750%, 05/01/22 1,060
10,774
Telecommunication Services (0.0%)
1,000 Embarq Corp. 7.995%, 06/01/36 1,019
Frontier Communications Corp.^
1,000 11.000%, 09/15/25 914
1,000 7.625%, 04/15/24 816
PRINCIPAL AMOUNT VALUE
2,000 Sprint Corp. 7.875%, 09/15/23 $ 2,271
1,000 T-Mobile USA, Inc. 6.625%, 04/01/23 1,059
6,079
Utilities (0.0%)
1,000 AES Corp.µ 7.375%, 07/01/21 1,146
1,000 Calpine Corp.*µ 6.000%, 01/15/22 1,034
1,000 NRG Energy, Inc.^ 6.625%, 01/15/27 1,029
3,209
Total Corporate Bonds 116,667
NUMBER OF CONTRACTS/ NOTIONAL AMOUNT VALUE
Purchased
Options (0.0%) #
Materials (0.0%)
United States Steel Corp.
100 10,000 Call, 10/20/17, Strike $27.00 8,800
98 9,800 Call, 10/20/17, Strike $25.00 14,210
Total Purchased Options 23,010
TOTAL
SYNTHETIC CONVERTIBLE SECURITIES (Cost $144,790) 139,677
Convertible
Preferred Stocks (18.7%)
Consumer Staples (0.7%)
54,000 Bunge, Ltd.µ 4.875%, 12/31/49 5,882,501
Energy (3.3%)
95,000 CenterPoint Energy, Inc. (Time Warner, Inc., Charter Communications, Time, Inc.)µ**§ 3.399%, 09/15/29 7,260,375
117,800 Hess Corp. 8.000%, 02/01/19 6,626,250
NuStar Energy, LP‡
175,000 7.625%, 12/31/49 3 mo. USD LIBOR + 5.64% 4,501,000
55,769 8.500%, 12/31/49 3 mo. USD LIBOR + 6.77% 1,480,109
158,550 Southwestern Energy Company^ 6.250%, 01/15/18 2,192,747
73,500 WPX Energy, Inc. 6.250%, 07/31/18 3,691,905
25,752,386
Financials (2.6%)
95,750 Affiliated Managers Group, Inc.µ 5.150%, 10/15/37 5,858,942

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 7; Value: 1

7

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Calamos Convertible Opportunities and Income Fund
SCHEDULE OF INVESTMENTS
JULY 31, 2017 (UNAUDITED)
NUMBER OF SHARES VALUE
4,600 Bank of America Corp.µ 7.250%, 12/31/49 $ 5,970,800
27,248 Virtus Investment Partners, Inc.^ 7.250%, 02/01/20 2,847,961
4,375 Wells Fargo & Companyµ 7.500%, 12/31/49 5,807,813
20,485,516
Health Care (5.8%)
24,950 Allergan, PLC 5.500%, 03/01/18 22,305,549
302,500 Anthem, Inc.µ 5.250%, 05/01/18 15,572,700
108,000 Becton Dickinson and Company 6.125%, 05/01/20 6,036,120
2,950 Teva Pharmaceutical Industries, Ltd. 7.000%, 12/15/18 1,722,800
45,637,169
Industrials (0.7%)
105,400 Rexnord Corp.^ 5.750%, 11/15/19 5,630,995
Real Estate (2.1%)
16,650 American Tower Corp. 5.500%, 02/15/18 1,993,005
5,791 Crown Castle International Corp.^ 6.875%, 08/01/20 6,180,311
130,225 Welltower, Inc.µ^ 6.500%, 12/31/49 8,516,715
16,690,031
Telecommunication Services (0.9%)
68,800 T-Mobile USA, Inc. 5.500%, 12/15/17 6,897,200
Utilities (2.6%)
107,225 DTE Energy Companyµ 6.500%, 10/01/19 5,878,278
NextEra Energy, Inc.µ
163,665 6.123%, 09/01/19 9,093,228
86,000 6.371%, 09/01/18^ 5,695,780
20,667,286
TOTAL CONVERTIBLE PREFERRED
STOCKS (Cost $144,141,252) 147,643,084
Common
Stock (0.1%)
Financials (0.1%)
13,850 American International
Group, Inc.µ (Cost $623,250) 906,482
VALUE
PURCHASED OPTIONS (0.0%) #
Materials (0.0%)
United States Steel Corp.
100 10,000 Put, 10/20/17, Strike $21.00 $ 10,150
98 9,800 Put, 10/20/17, Strike $19.00 4,900
TOTAL PURCHASED OPTIONS (Cost $14,699) 15,050
NUMBER OF SHARES VALUE
SHORT TERM INVESTMENTS (3.3%)
13,226,381 Fidelity Prime Money Market Fund - Institutional Class 13,231,672
13,190,486 Morgan Stanley Institutional Liquidity Funds - Government Portfolio 13,190,486
TOTAL SHORT TERM INVESTMENTS (Cost $26,422,158) 26,422,158
TOTAL
INVESTMENTS (139.3%) (Cost
$1,085,769,638) 1,100,404,056
LIABILITIES, LESS OTHER ASSETS (-39.3%) (310,296,396 )
NET ASSETS (100.0%) $ 790,107,660
NUMBER OF CONTRACTS/ NOTIONAL AMOUNT VALUE
WRITTEN OPTIONS (0.0%) #
Materials (0.0%)
United States Steel Corp.
100 10,000 Put, 10/20/17, Strike $25.00 $ (29,900 )
98 9,800 Put, 10/20/17, Strike $23.00 (18,032 )
TOTAL WRITTEN OPTIONS (Premium $43,027) $ (47,932 )

| 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. |
| µ | Security, or portion
of security, is held in a segregated account as collateral for note payable aggregating a total value of $216,794,335. $70,086,095
of the collateral has been re-registered by one of the counterparties, BNP (see Note 3 - Borrowings). |
| ^ | Security, or portion
of security, is on loan. |
| ‡ | Variable rate security.
The rate shown is the rate in effect at July 31, 2017. |
| @ | In default status
and considered non-income producing. |

See accompanying Notes to Schedule of Investments

Field: Page; Sequence: 8; Value: 1

8

Field: /Page

Convertible Opportunities and Income Fund

SCHEDULE OF INVESTMENTS JULY 31, 2017 (UNAUDITED)

| ** | Step
Coupon security. Coupon changes periodically based upon a predetermined schedule. The rate shown is the rate in effect at
July 31, 2017. |
| --- | --- |
| ~ | Security,
or portion of security, is segregated as collateral (or potential collateral for future transactions) for written options.
The aggregate value of such securities is $94,556. |
| ¤ | The
synthetic convertible securities strategy combines separate securities that together possess the economic characteristics
similar to a convertible security. |
| § | Securities
exchangeable or convertible into securities of one or more entities that are different than the issuer. Each entity is identified
in the parenthetical. |
| # | Non-income
producing security. |

| FOREIGN
CURRENCY ABBREVIATION | |
| --- | --- |
| CAD | Canadian
Dollar |
| 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

Field: Page; Sequence: 9; Value: 1

9

Field: /Page

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 strategy 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 and under normal circumstances, the Fund will invest at least 35% of its managed assets in convertible 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).

Significant Accounting Policies. The schedule of investments have been prepared in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP). The Fund is considered an investment company under U.S. GAAP and follows the accounting and reporting guidance applicable to investment companies. The following summarizes the significant accounting policies of the Fund:

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 principal 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 principal 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 in 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, 2017.

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 cost basis of investments for federal income tax purposes at July 31, 2017 was as follows:*

| Cost
basis of investments | $ | |
| --- | --- | --- |
| Gross unrealized appreciation | 64,080,119 | |
| Gross
unrealized depreciation | (49,450,606 | ) |
| Net
unrealized appreciation (depreciation) | $ 14,629,513 | |

Field: Page; Sequence: 10; Options: NewSection

Field: /Page

  • Because tax adjustments are calculated annually, the above table does not reflect tax adjustments. For the previous fiscal year’s federal income tax information, please refer to the Notes to Financial Statements section in the Fund’s most recent semi-annual or annual report.

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 $107.5 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 a limit of $322.5 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 .20% 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, 2017, the average borrowings under the Agreements were $308.4 million. For the period ended July 31, 2017, the average interest rate was 1.97%. As of July 31, 2017, the amount of total outstanding borrowings was $314.0 million ($78.5 million under the BNP Agreement and $235.5 million under the SSB Agreement), which approximates fair value. The interest rate applicable to the borrowings on July 31, 2017 was 1.28%.

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. The dividend and interest payments are recorded as Dividend or Interest payments in the Statement of Operations. Earnings made by the lent securities are disclosed on a net basis as Securities Lending Income in the Statement of Operations.

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 for the ultimate delivery of such Lent Securities, or equivalent securities, to be made to the Fund’s custodian, 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 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. The Fund has the right to call a loan and obtain the securities loaned at any time. As of July 31, 2017, the Fund used approximately $220.9 million of its cash collateral to offset the SSB Agreement, representing 20.0% of managed assets, and was required to pay a “net income” payment equal to an annualized interest rate of 0.99%, which can fluctuate depending on interest rates. As of July 31, 2017, approximately $215.6 million of securities were on loan ($208.6 million of fixed income securities and $7.0 million of equity securities) under the SSB Agreement which are reflected in the Investment in securities, at value on the Statement of Assets and Liabilities.

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Note 4 – Fair Value Measurement

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 | $ — | $ 419,905,879 | $ — | $ 419,905,879 |
| Convertible Bonds | — | 505,371,726 | — | 505,371,726 |
| Synthetic Convertible Securities
(Corporate Bonds) | — | 116,667 | — | 116,667 |
| Synthetic Convertible Securities
(Purchased Options) | 23,010 | — | — | 23,010 |
| Convertible Preferred Stocks | 122,762,988 | 24,880,096 | — | 147,643,084 |
| Common Stocks U.S. | 906,482 | — | — | 906,482 |
| Purchased Options | 15,050 | — | — | 15,050 |
| Short
Term Investments | 26,422,158 | — | — | 26,422,158 |
| Total | $ 150,129,688 | $ 950,274,368 | $ — | $ 1,100,404,056 |
| Liabilities: | | | | |
| Written
Options | $ 47,932 | $ — | $ — | $ 47,932 |
| Total | $ 47,932 | $ — | $ — | $ 47,932 |

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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.

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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
1, 2017

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
1, 2017
By: /s/
Curtis Holloway
Name: Curtis Holloway
Title: Principal
Financial Officer
Date: September
1, 2017

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