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CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND

CIK: 0001171471 CHI Fixed Income
Report date: 2026-03-31
AUM $892M
Expense Ratio
Category Fixed Income
State
Fiscal Year End
Inception Date
Manager
Latest Filing 2026-03-31

Holdings

From latest SEC N-PORT filing · US-listed stocks only

151 positions
# Security Name CUSIP Asset Type Weight % Value ($M) Quantity
1 ASTS AST SPACEMOBILE INC Since 2026-05-10 00217DAC4 Debt
0.66%
$5.92 3,250,000
2 ASTS AST SPACEMOBILE INC Since 2026-05-10 00217DAE0 Debt
0.73%
$6.49 4,750,000
3 AAP ADVANCE AUTO PARTS Since 2026-05-10 00751YAK2 Debt
0.05%
$0.43 422,000
4 AAP ADVANCE AUTO PARTS Since 2026-05-10 00751YAL0 Debt
0.03%
$0.24 237,000
5 AVAV AEROVIRONMENT INC Since 2026-05-10 008073AA6 Debt
1.16%
$10.35 8,750,000
6 AFRM AFFIRM HOLDINGS INC Since 2026-05-10 00827BAD8 Debt
0.49%
$4.40 4,250,000
7 AKAM AKAMAI TECHNOLOGIES INC Since 2026-05-10 00971TAP6 Debt
1.90%
$17.00 14,000,000
8 ALKT ALKAMI TECHNOLOGY INC Since 2026-05-10 01644JAA6 Debt
0.39%
$3.48 3,500,000
9 ALLY ALLY FINANCIAL INC Since 2026-05-10 02005NBM1 Debt
0.15%
$1.32 1,327,000
10 ALLY ALLY FINANCIAL INC Since 2026-05-10 02005NBN9 Debt
0.05%
$0.43 445,000
11 ALNY ALNYLAM PHARMACEUTICALS Since 2026-05-10 02043QAC1 Debt
0.47%
$4.21 4,500,000
12 ATEC ALPHATEC HOLDINGS INC Since 2026-05-10 02081GAC6 Debt
0.79%
$7.02 5,750,000
13 OPTU Optimum Communications Inc Since 2026-05-10 02156K103 Equity (Common)
0.00%
$0.03 20,285
14 GNL GLOBAL NET LEASE INC Since 2026-05-10 02608AAA7 Debt
0.07%
$0.62 630,000
15 AMRX Amneal Pharmaceuticals LLC Since 2026-05-10 03167DAR5 LON
0.12%
$1.04 1,039,096
16 APO APOLLO GLOBAL MANAGEMENT Since 2026-05-10 03769M304 Equity (Preferred)
0.65%
$5.79 83,465
17 ACA ARCOSA INC Since 2026-05-10 039653AA8 Debt
0.06%
$0.53 538,000
18 ACA ARCOSA INC Since 2026-05-10 039653AC4 Debt
0.06%
$0.50 475,000
19 BGS B&G Foods, Inc. Since 2026-05-10 05508TAV4 LON
0.07%
$0.67 701,125
20 BWXT BWX TECHNOLOGIES INC Since 2026-05-10 05605HAC4 Debt
0.11%
$0.94 956,000
21 BWXT BWX TECHNOLOGIES INC Since 2026-05-10 05605HAD2 Debt
2.15%
$19.18 18,500,000
22 BILL BILL HOLDINGS INC Since 2026-05-10 090043AF7 Debt
0.85%
$7.62 8,500,000
23 BMRN BIOMARIN PHARMACEUTICAL Since 2026-05-10 09061GAL5 Debt
0.11%
$0.94 940,000
24 BBIO BRIDGEBIO PHARMA INC Since 2026-05-10 10806XAH5 Debt
0.54%
$4.82 2,750,000
25 BBIO BRIDGEBIO PHARMA INC Since 2026-05-10 10806XAK8 Debt
0.14%
$1.29 1,263,000
26 CACI CACI INTERNATIONAL INC Since 2026-05-10 127190AE6 Debt
0.06%
$0.49 475,000
27 CZR Caesars Entertainment Inc Since 2026-05-10 12768EAG1 LON
0.06%
$0.56 558,888
28 CNP CENTERPOINT ENERGY INC Since 2026-05-10 15189TBP1 Debt
0.05%
$0.49 475,000
29 CENX CENTURY ALUMINUM COMPANY Since 2026-05-10 156431AS7 Debt
0.11%
$0.98 950,000
30 LEU CENTRUS ENERGY CORP Since 2026-05-10 15643UAF1 Debt
0.94%
$8.38 5,750,000
31 CCS CENTURY COMMUNITIES Since 2026-05-10 156504AN2 Debt
0.11%
$0.96 950,000
32 LUMN LUMEN TECHNOLOGIES INC Since 2026-05-10 156700AM8 Debt
0.07%
$0.60 605,000
33 C CITIGROUP INC Since 2026-05-10 17327CBC6 Debt
0.05%
$0.49 475,000
34 NET CLOUDFLARE INC Since 2026-05-10 18915MAE7 Debt
1.23%
$10.97 10,445,000
35 COGT COGENT BIOSCIENCES INC Since 2026-05-10 19240QAA0 Debt
0.24%
$2.11 1,760,000
36 COIN COINBASE GLOBAL INC Since 2026-05-10 19260QAF4 Debt
0.50%
$4.42 4,500,000
37 COIN COINBASE GLOBAL INC Since 2026-05-10 19260QAJ6 Debt
1.08%
$9.61 11,250,000
38 CMCO COLUMBUS MCKINNON CORPORATION Since 2026-05-10 19933MAS2 LON
0.08%
$0.73 730,000
39 CVLT COMMVAULT SYSTEMS INC Since 2026-05-10 204166AA0 Debt
0.40%
$3.59 4,250,000
40 CSTM CONSTELLIUM SE Since 2026-05-10 21039CAD6 Debt
0.04%
$0.39 375,000
41 CRBG COREBRIDGE FINANCIAL INC Since 2026-05-10 21871XAT6 Debt
0.11%
$0.95 935,000
42 DDOG DATADOG INC Since 2026-05-10 23804LAD5 Debt
1.44%
$12.81 13,000,000
43 DVA DAVITA INC Since 2026-05-10 23918KAS7 Debt
0.11%
$1.02 1,061,000
44 DVA DAVITA INC Since 2026-05-10 23918KAT5 Debt
0.12%
$1.05 1,139,000
45 DVA DAVITA INC Since 2026-05-10 23918KAW8 Debt
0.11%
$0.95 925,000
46 XRAY DENTSPLY SIRONA INC Since 2026-05-10 24906PAB5 Debt
0.11%
$0.94 950,000
47 D DOMINION ENERGY INC Since 2026-05-10 25746UDV8 Debt
0.05%
$0.49 475,000
48 DASH DOORDASH INC Since 2026-05-10 25809KAA3 Debt
1.49%
$13.28 13,250,000
49 EMBC EMBECTA CORP Since 2026-05-10 29082KAA3 Debt
0.08%
$0.67 717,000
50 EMBC EMBECTA CORP Since 2026-05-10 29082KAB1 Debt
0.03%
$0.23 240,000
51 ENB ENBRIDGE INC Since 2026-05-10 29250NCF0 Debt
0.06%
$0.52 485,000
52 ENB ENBRIDGE INC Since 2026-05-10 29250NCG8 Debt
0.09%
$0.77 724,000
53 UUUU ENERGY FUELS INC Since 2026-05-10 292671AC8 Debt
0.85%
$7.54 5,500,000
54 ENR ENERGIZER HOLDINGS INC Since 2026-05-10 29272WAD1 Debt
0.12%
$1.05 1,096,000
55 ENR ENERGIZER HOLDINGS INC Since 2026-05-10 29272WAG4 Debt
0.05%
$0.46 475,000
56 ENS ENERSYS Since 2026-05-10 29275YAC6 Debt
0.05%
$0.47 475,000
57 ENS ENERSYS Since 2026-05-10 29275YAF9 Debt
0.06%
$0.52 500,000
58 EFXT ENERFLEX INC Since 2026-05-10 29281WAA6 Debt
0.11%
$0.98 950,000
59 ETSY ETSY INC Since 2026-05-10 29786AAP1 Debt
0.48%
$4.25 4,250,000
60 EVRG EVERGY INC Since 2026-05-10 30034WAE6 Debt
0.08%
$0.73 710,000
61 F FORD MOTOR COMPANY Since 2026-05-10 345370DB3 Debt
0.12%
$1.04 1,000,000
62 FOR FORESTAR GROUP INC Since 2026-05-10 346232AG6 Debt
0.05%
$0.49 475,000
63 FRPT FRESHPET INC Since 2026-05-10 358039AB1 Debt
0.31%
$2.79 2,250,000
64 GTN-A GRAY MEDIA INC Since 2026-05-10 389286AA3 Debt
0.04%
$0.35 475,000
65 GTN-A GRAY MEDIA INC Since 2026-05-10 389375AP1 Debt
0.05%
$0.49 475,000
66 GPI GROUP 1 AUTOMOTIVE INC Since 2026-05-10 398905AN9 Debt
0.04%
$0.40 407,000
67 GPI GROUP 1 AUTOMOTIVE INC Since 2026-05-10 398905AQ2 Debt
0.07%
$0.62 600,000
68 GH GUARDANT HEALTH INC Since 2026-05-10 40131MAE9 Debt
0.63%
$5.65 4,750,000
69 GWRE GUIDEWIRE SOFTWARE INC Since 2026-05-10 40171VAC4 Debt
0.93%
$8.26 8,500,000
70 COHR Coherent Corp Since 2026-05-10 45173JAT1 LON
0.04%
$0.38 376,071
71 ITRI ITRON INC Since 2026-05-10 465741AQ9 Debt
0.45%
$4.00 3,750,000
72 JOBY JOBY AVIATION INC Since 2026-05-10 47775AAA9 Debt
0.55%
$4.87 4,750,000
73 KBR KBR INC Since 2026-05-10 48242WAC0 Debt
0.12%
$1.04 1,050,000
74 KKR KKR & CO INC Since 2026-05-10 48251W500 Equity (Preferred)
0.86%
$7.64 156,055
75 KSS KOHL'S CORPORATION Since 2026-05-10 500255AV6 Debt
0.04%
$0.32 470,000
76 BBWI BATH & BODY WORKS INC Since 2026-05-10 501797AL8 Debt
0.06%
$0.49 485,000
77 BBWI BATH & BODY WORKS INC Since 2026-05-10 501797AQ7 Debt
0.14%
$1.28 1,264,000
78 BBWI BATH & BODY WORKS INC Since 2026-05-10 501797AW4 Debt
0.08%
$0.67 655,000
79 LNTH LANTHEUS HOLDINGS INC Since 2026-05-10 516544AB9 Debt
0.35%
$3.11 2,721,000
80 LIF LIFE360 INC Since 2026-05-10 532206AB5 Debt
0.50%
$4.48 4,250,000
81 LAD LITHIA MOTORS INC Since 2026-05-10 536797AJ2 Debt
0.05%
$0.48 475,000
82 LCID LUCID GROUP INC Since 2026-05-10 549498AC7 Debt
0.23%
$2.05 3,500,000
83 LUMN LUMEN TECHNOLOGIES INC Since 2026-05-10 550241AK9 Debt
0.08%
$0.71 712,875
84 LITE LUMENTUM HOLDINGS INC Since 2026-05-10 55024UAJ8 Debt
3.50%
$31.22 13,750,000
85 LYFT LYFT INC Since 2026-05-10 55087PAE4 Debt
1.48%
$13.22 12,500,000
86 MHO M/I HOMES INC Since 2026-05-10 55305BAV3 Debt
0.07%
$0.61 635,000
87 MKSI MKS INC Since 2026-05-10 55306NAB0 Debt
2.98%
$26.57 15,750,000
88 MP MP MATERIALS CORP Since 2026-05-10 553368AC5 Debt
0.79%
$7.09 2,500,000
89 MET METLIFE INC Since 2026-05-10 59156RAP3 Debt
0.08%
$0.75 715,000
90 MSTR STRATEGY INC Since 2026-05-10 594972AL5 Debt
1.04%
$9.28 9,000,000
91 MIR MIRION TECHNOLOGIES INC Since 2026-05-10 60471AAA9 Debt
1.09%
$9.72 7,500,000
92 MOG-B MOOG INC Since 2026-05-10 615394AM5 Debt
0.07%
$0.58 588,000
93 NBR NABORS INDUSTRIES INC Since 2026-05-10 62957HAR6 Debt
0.15%
$1.31 1,285,000
94 NFE NEW FORTRESS ENERGY INC Since 2026-05-10 644393AB6 Debt
0.01%
$0.07 715,000
95 NFE New Fortress Energy Inc Since 2026-05-10 64439HAC3 LON
0.03%
$0.28 706,699
96 NWL NEWELL BRANDS INC Since 2026-05-10 651229BE5 Debt
0.05%
$0.47 475,000
97 NWL NEWELL BRANDS INC Since 2026-05-10 651229BF2 Debt
0.05%
$0.47 475,000
98 NWL NEWELL BRANDS INC Since 2026-05-10 651229BG0 Debt
0.06%
$0.50 475,000
99 NMRK NEWMARK GROUP INC Since 2026-05-10 65158NAD4 Debt
0.06%
$0.51 475,000
100 NEE NextEra Energy Inc Since 2026-05-10 65339F101 Equity (Common)
1.01%
$9.04 102,861
101 NEE NEXTERA ENERGY INC Since 2026-05-10 65339F663 Equity (Preferred)
0.53%
$4.73 85,285
102 NI NISOURCE INC Since 2026-05-10 65473PAR6 Debt
0.08%
$0.75 718,000
103 GEN GEN DIGITAL INC Since 2026-05-10 668771AK4 Debt
0.06%
$0.51 500,000
104 OKE ONEOK INC Since 2026-05-10 682680CR2 Debt
0.07%
$0.64 600,000
105 PATK PATRICK INDUSTRIES INC Since 2026-05-10 703343AD5 Debt
0.09%
$0.84 849,000
106 PATK PATRICK INDUSTRIES INC Since 2026-05-10 703343AH6 Debt
0.05%
$0.49 475,000
107 PTON PELOTON INTERACTIVE INC Since 2026-05-10 70614EAG5 LON
0.05%
$0.43 423,550
108 PENN PENN ENTERTAINMENT INC Since 2026-05-10 707569AV1 Debt
0.12%
$1.03 1,105,000
109 PL PLANET LABS PBC Since 2026-05-10 72703XAA4 Debt
0.45%
$3.99 1,750,000
110 POST POST HOLDINGS INC Since 2026-05-10 737446AU8 Debt
0.11%
$0.98 950,000
111 POST POST HOLDINGS INC Since 2026-05-10 737446AV6 Debt
0.09%
$0.84 829,000
112 SVC SERVICE PROPERTIES TRUST Since 2026-05-10 81761LAD4 Debt
0.11%
$0.97 960,000
113 FOUR SHIFT4 PAYMENTS INC Since 2026-05-10 82452JAD1 Debt
1.59%
$14.20 14,750,000
114 SLGN SILGAN HOLDINGS INC Since 2026-05-10 827048AW9 Debt
0.12%
$1.10 1,105,000
115 QXO QXO INC Since 2026-05-10 82846H504 Equity (Preferred)
0.58%
$5.20 82,135
116 SNAP SNAP INC Since 2026-05-10 83304AAK2 Debt
1.57%
$14.02 16,250,000
117 SNOW SNOWFLAKE INC Since 2026-05-10 833445AD1 Debt
1.46%
$13.03 9,250,000
118 SAH SONIC AUTOMOTIVE INC Since 2026-05-10 83545GBD3 Debt
0.07%
$0.60 610,000
119 XYZ BLOCK INC Since 2026-05-10 852234AT0 Debt
0.05%
$0.48 470,000
120 XYZ BLOCK INC Since 2026-05-10 852234AU7 Debt
0.03%
$0.24 238,000
121 STWD STARWOOD PROPERTY TRUST Since 2026-05-10 85571BBC8 Debt
0.11%
$0.98 950,000
122 SNEX STONEX GROUP INC Since 2026-05-10 861896AA6 Debt
0.14%
$1.27 1,190,000
123 SMCI SUPER MICRO COMPUTER INC Since 2026-05-10 86800UAC8 Debt
0.25%
$2.19 2,250,000
124 SMCI SUPER MICRO COMPUTER INC Since 2026-05-10 86800UAE4 Debt
0.34%
$3.02 3,500,000
125 TTMI TTM TECHNOLOGIES INC Since 2026-05-10 87305RAK5 Debt
0.15%
$1.31 1,350,000
126 TEM TEMPUS AI INC Since 2026-05-10 88023BAD5 Debt
0.24%
$2.17 2,000,000
127 WULF TERAWULF INC Since 2026-05-10 88080TAC8 Debt
1.26%
$11.25 8,500,000
128 WULF TERAWULF INC Since 2026-05-10 88080TAE4 Debt
0.13%
$1.16 1,211,000
129 TTEK TETRA TECH INC Since 2026-05-10 88162GAB9 Debt
0.52%
$4.66 4,000,000
130 TRIP TripAdvisor Inc Since 2026-05-10 89677NAE4 LON
0.06%
$0.56 570,719
131 TWLO TWILIO INC Since 2026-05-10 90138FAC6 Debt
0.07%
$0.65 680,000
132 TWLO TWILIO INC Since 2026-05-10 90138FAD4 Debt
0.03%
$0.22 236,000
133 COHR COHERENT CORP Since 2026-05-10 902104AC2 Debt
0.06%
$0.56 557,000
134 TYL TYLER TECHNOLOGIES INC Since 2026-05-10 902252AB1 Debt
0.47%
$4.23 4,250,000
135 UBER UBER TECHNOLOGIES INC Since 2026-05-10 90353TAM2 Debt
2.08%
$18.58 14,500,000
136 UBER UBER TECHNOLOGIES INC Since 2026-05-10 90353TAR1 Debt
1.14%
$10.20 10,147,000
137 UAL UNITED AIRLINES HOLDINGS Since 2026-05-10 910047AL3 Debt
0.01%
$0.12 119,000
138 UNFI UNITED NATURAL FOODS INC Since 2026-05-10 911163AA1 Debt
0.09%
$0.82 815,000
139 UNFI United Natural Foods Inc Since 2026-05-10 91116KAD7 LON
0.05%
$0.48 477,415
140 VIAV VIAVI SOLUTIONS INC Since 2026-05-10 925550AF2 Debt
0.15%
$1.37 1,435,000
141 VST VISTRA CORP Since 2026-05-10 92840MAB8 Debt
0.03%
$0.26 250,000
142 VST VISTRA CORP Since 2026-05-10 92840MAC6 Debt
0.05%
$0.46 450,000
143 W WAYFAIR INC Since 2026-05-10 94419LAR2 Debt
0.92%
$8.24 3,500,000
144 WT WISDOMTREE INC Since 2026-05-10 97717PAJ3 Debt
0.56%
$4.96 4,250,000
145 WOLF WOLFSPEED INC Since 2026-05-10 977852AS1 Debt
0.12%
$1.11 1,358,149
146 WOLF Wolfspeed Inc Since 2026-05-10 97785W106 Equity (Common)
0.20%
$1.76 112,416
147 WK WORKIVA INC Since 2026-05-10 98139AAD7 Debt
0.41%
$3.63 3,750,000
148 ZTS ZOETIS INC Since 2026-05-10 98978VAY9 Debt
0.53%
$4.73 4,625,000
149 ZS ZSCALER INC. Since 2026-05-10 98980GAC6 Debt
0.96%
$8.61 9,250,000
150 BLCO Bausch & Lomb Corporation Since 2026-05-10 LON
0.12%
$1.06 1,055,510
151 BHC Bausch Health Companies Inc Since 2026-05-10 LON
0.23%
$2.04 2,090,555