Calamos Convertible Opportunities and Income Fund
US ˙ NasdaqGS ˙ US1281171082

SecurityCHI / Calamos Convertible Opportunities and Income Fund
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership554,988 shares
Latest Disclosed Value $ 5,816,270
Commonwealth Equity Services, Llc reports 2.47% increase in ownership of CHI / Calamos Convertible Opportunities and Income Fund

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 554,988 shares of Calamos Convertible Opportunities and Income Fund (US:CHI) valued at $5,816,274 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 541,626 shares of Calamos Convertible Opportunities and Income Fund. This represents a change in shares of 2.47% during the quarter. The current value of the position is $7,064,997 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)
2026-02-12 2025-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 554,988 13,362 2.47 5,816 116,220.00
2025-10-22 2025-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 541,626 -24,235 -4.28 6 0.00 0.0076
2025-08-06 2025-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 565,861 -71,740 -11.25 6 -16.67 0.0079
2025-05-09 2025-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 637,601 23,844 3.88 6 -14.29 0.0087
2025-02-10 2024-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 613,757 1,165 0.19 7 0.00 0.0107
2024-10-18 2024-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 612,592 -22,384 -3.53 7 0.00 0.0108
2024-07-31 2024-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 634,976 29,062 4.80 7 16.67 0.0117
2024-04-29 2024-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 605,914 18,100 3.08 7 0.00 0.0114
2024-02-06 2023-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 587,814 20,310 3.58 6 20.00 0.0112
2023-10-23 2023-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 567,504 13,782 2.49 6 -16.67 0.0124
2023-08-10 2023-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 553,722 44,383 8.71 6 20.00 0.0126
2023-05-11 2023-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 509,339 13,073 2.63 5 0.00 0.0112
2023-02-07 2022-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 496,266 14,570 3.02 5 -99.89 0.0125
2022-11-14 2022-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 481,696 10,828 2.30 4,653 -7.81 0.0120
2022-07-19 2022-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 470,868 12,837 2.80 5,047 -16.58 0.0132
2022-05-04 2022-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 458,031 -41,819 -8.37 6,050 -19.89 0.0138
2022-01-31 2021-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 499,850 -31,574 -5.94 7,552 -5.07 0.0170
2021-10-29 2021-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 531,424 -23,491 -4.23 7,955 -5.50 0.0200
2021-08-11 2021-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 554,915 -13,600 -2.39 8,418 4.13 0.0214
2021-05-04 2021-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 568,515 -80,330 -12.38 8,084 -7.98 0.0229
2021-02-11 2020-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 648,845 514 0.08 8,785 23.19 0.0264
2020-11-05 2020-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 648,331 -9,314 -1.42 7,131 1.92 0.0244
2020-08-12 2020-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 657,645 -7,454 -1.12 6,997 26.16 0.0264
2020-05-11 2020-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 665,099 39,417 6.30 5,546 -19.41 0.0258
2020-02-05 2019-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 625,682 20,278 3.35 6,882 9.20 0.0262
2019-10-30 2019-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 605,404 -1,918 -0.32 6,302 -1.21 0.0269
2019-07-19 2019-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 607,322 -1,420 -0.23 6,379 3.30 0.0281
2019-05-13 2019-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 608,742 -17,719 -2.83 6,175 11.26 0.0285
2019-02-11 2018-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 626,461 -15,052 -2.35 5,550 -28.14 0.0295
2018-11-06 2018-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 641,513 110,907 20.90 7,723 23.45 0.0370
2018-07-31 2018-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 530,606 22,712 4.47 6,256 10.98 0.0327
2018-05-14 2018-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 507,894 8,568 1.72 5,637 0.89 0.0306
2018-02-12 2017-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 499,326 499,326 5,587 0.0305
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.