Calamos Convertible Opportunities and Income Fund
US ˙ NasdaqGS ˙ US1281171082

SecurityCHI / Calamos Convertible Opportunities and Income Fund
InstitutionKovack Advisors, Inc.
Latest Disclosed Ownership13,151 shares
Latest Disclosed Value $ 145,600
Kovack Advisors, Inc. reports 1.17% increase in ownership of CHI / Calamos Convertible Opportunities and Income Fund

On May 12, 2026 - Kovack Advisors, Inc. filed a 13F-HR form disclosing ownership of 13,151 shares of Calamos Convertible Opportunities and Income Fund (US:CHI) valued at $141,242 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 12,999 shares of Calamos Convertible Opportunities and Income Fund. This represents a change in shares of 1.17% during the quarter. The current value of the position is $167,412 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)
2026-05-12 2026-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 13,151 152 1.17 146 6.62 0.0078
2026-02-17 2025-12-31 13F/A-1 CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,999 852 7.01 136 3.82 0.0063
2026-02-12 2025-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,999 852 131
2025-11-10 2025-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,147 -541 -4.26 131 -1.50 0.0123
2025-08-04 2025-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,688 181 1.45 133 11.76 0.0131
2025-05-06 2025-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,507 115 0.93 120 -19.05 0.0127
2025-02-05 2024-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 12,392 1,555 14.35 148 16.67 0.0145
2024-11-05 2024-09-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 10,837 230 2.17 126 2.44 0.0134
2024-08-05 2024-06-30 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 10,607 10,607 123 0.0136
2024-04-19 2024-03-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 0 -10,380 -100.00 0 -100.00
2024-02-02 2023-12-31 13F CALAMOS CONV OPPORTUNITIES SH BEN INT 128117108 10,380 10,380 108 0.0128
2018-10-09 2018-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 0 -17,051 -100.00 0 -100.00
2018-08-01 2018-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 17,051 316 1.89 201 8.06 0.0561
2018-05-15 2018-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT OPP AND INC FD SH BEN INT 128117108 16,735 -877 -4.98 186 -5.58 0.0467
2018-05-15 2017-12-31 13F/A-1 CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 17,612 322 1.86 197 -1.01 0.0498
2018-08-02 2017-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT OPP AND INC FD SH BEN INT 128117108 17,290 222 1.30 199 3.65 0.0660
2018-08-30 2017-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 17,068 422 2.54 192 4.92 0.0606
2018-09-05 2017-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT INC FD SH BEN INT 128117108 16,646 1,467 9.66 183 19.61 0.0713
2018-09-10 2016-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT FD SH BEN INT 128117108 15,179 3,315 27.94 153 24.39 0.0728
2018-09-25 2016-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 11,864 609 5.41 123 -10.22 0.0599
2018-11-06 2015-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 11,255 0 0.00 137 -6.16 0.0969
2018-11-13 2015-03-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 11,255 1,131 11.17 146 12.31 0.1233
2018-11-19 2014-12-31 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 10,124 0 0.00 130 -5.11 0.1342
2018-12-04 2014-09-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 10,124 -10,632 -51.22 137 -52.92 0.2015
2018-12-18 2014-06-30 13F CALAMOS CONV OPP AND INC FD SH BEN INT SH BEN INT 128117108 20,756 20,756 291 0.4221
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.