Calamos Convertible Opportunities and Income Fund
US ˙ NasdaqGS ˙ US1281171082

SecurityCHI / Calamos Convertible Opportunities and Income Fund
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership30,221 shares
Latest Disclosed Value $ 324,568
Private Advisor Group, LLC reports 3.54% increase in ownership of CHI / Calamos Convertible Opportunities and Income Fund

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 30,221 shares of Calamos Convertible Opportunities and Income Fund (US:CHI) valued at $324,574 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 29,189 shares of Calamos Convertible Opportunities and Income Fund. This represents a change in shares of 3.54% during the quarter. The current value of the position is $384,713 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 30,221 1,032 3.54 325 6.23 0.0014
2026-02-17 2025-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 29,189 780 2.75 306 -0.33 0.0014
2025-11-13 2025-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 28,409 3,716 15.05 307 18.15 0.0015
2025-08-11 2025-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 24,693 571 2.37 260 12.12 0.0014
2025-05-05 2025-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 24,122 -196 -0.81 231 -20.34 0.0014
2025-02-03 2024-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 24,318 -2,089 -7.91 290 -5.54 0.0016
2024-10-22 2024-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 26,407 -988 -3.61 307 -3.46 0.0019
2024-08-05 2024-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 27,395 -38 -0.14 319 2.25 0.0021
2024-04-30 2024-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 27,433 -1,437 -4.98 311 4.01 0.0022
2024-02-06 2023-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 28,870 2,786 10.68 299 9.12 0.0023
2023-11-03 2023-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 26,084 4,005 18.14 275 10.93 0.0025
2023-08-10 2023-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 22,079 1,808 8.92 247 15.96 0.0021
2023-05-10 2023-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 20,271 478 2.41 213 0.0020
2023-01-18 2022-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 19,793 -14,315 -41.97 0 -100.00 0.0000
2022-10-14 2022-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 34,108 -17,257 -33.60 330 -40.11 0.0038
2022-07-13 2022-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 51,365 -1,253 -2.38 551 -20.72 0.0049
2022-05-12 2022-03-31 13F/A-1 CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 52,618 -11,175 -17.52 695 -27.90 0.0053
2022-05-10 2022-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 63,793 0 964 0.0072
2022-02-10 2021-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 63,793 -108,360 -62.94 964 -62.58 0.0072
2021-10-14 2021-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 172,153 67,168 63.98 2,576 61.81 0.0164
2021-08-12 2021-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 104,985 -1,609 -1.51 1,592 5.01 0.0139
2021-04-22 2021-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 106,594 40,627 61.59 1,516 69.57 0.0145
2021-04-01 2020-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 65,967 40,652 160.58 894 221.58 0.0093
2020-11-02 2020-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 25,315 6,029 31.26 278 35.61 0.0036
2020-08-17 2020-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 19,286 34 0.18 205 27.33 0.0028
2020-05-12 2020-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 19,252 -2,653 -12.11 161 -33.20 0.0030
2020-02-10 2019-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 21,905 460 2.15 241 8.07 0.0037
2019-11-13 2019-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 21,445 1,049 5.14 223 4.21 0.0035
2019-08-14 2019-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 20,396 1,950 10.57 214 14.44 0.0039
2019-05-13 2019-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,446 -1,179 -6.01 187 7.47 0.0037
2019-02-08 2018-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 19,625 356 1.85 174 -25.00 0.0042
2018-11-01 2018-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 19,269 19,269 232 0.0048
2018-08-09 2018-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 0 -14,518 -100.00 0 -100.00
2018-05-09 2018-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 14,518 14,518 161 0.0063
2018-02-07 2017-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 0 -19,223 -100.00 0 -100.00
2017-11-13 2017-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 19,223 619 3.33 223 7.21 0.0055
2017-08-10 2017-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,604 243 1.32 208 2.46 0.0056
2017-05-10 2017-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,361 -288 -1.54 203 3.57 0.0057
2017-02-09 2016-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,649 620 3.44 196 4.81 0.0064
2016-11-10 2016-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,029 13 0.07 187 2.19 0.0076
2016-08-09 2016-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,016 -147 -0.81 183 6.40 0.0074
2016-05-13 2016-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 18,163 5,001 38.00 172 32.31 0.0083
2016-02-09 2015-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 13,162 650 5.20 130 4.84 0.0062
2015-11-13 2015-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 12,512 259 2.11 124 -17.33 0.0068
2015-08-13 2015-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 12,253 421 3.56 150 -2.60 0.0071
2015-05-13 2015-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 11,832 0 0.00 154 1.32 0.0089
2015-02-17 2014-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 11,832 1,110 10.35 152 4.83 0.0098
2014-11-12 2014-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 10,722 10,722 145 0.0100
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.