Calamos Convertible Opportunities and Income Fund
US ˙ NasdaqGS ˙ US1281171082

SecurityCHI / Calamos Convertible Opportunities and Income Fund
InstitutionMonetary Management Group Inc
Latest Disclosed Ownership7,500 shares
Latest Disclosed Value $ 80,550
Monetary Management Group Inc ownership in CHI / Calamos Convertible Opportunities and Income Fund

On May 13, 2026 - Monetary Management Group Inc filed a 13F-HR form disclosing ownership of 7,500 shares of Calamos Convertible Opportunities and Income Fund (US:CHI) valued at $80,550 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 7,500 shares of Calamos Convertible Opportunities and Income Fund. This represents a change in shares of 0.00% during the quarter. The current value of the position is $95,475 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)
2026-05-13 2026-03-31 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 0 0.00 81 2.56 0.0192
2026-02-11 2025-12-31 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 0 0.00 79 -2.50 0.0182
2025-11-12 2025-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 0 0.00 81 2.56 0.0186
2025-08-14 2025-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 0 0.00 79 9.86 0.0194
2025-05-14 2025-03-31 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 0 0.00 72 -20.22 0.0194
2025-02-13 2024-12-31 13F Calamos Conv Opp Inc Fund COM 128117108 7,500 -7,500 -50.00 90 -48.55 0.0233
2024-11-13 2024-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 15,000 0 0.00 173 -0.57 0.0445
2024-07-16 2024-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 15,000 5,000 50.00 175 53.98 0.0462
2024-05-13 2024-03-31 13F Calamos Conv Opp Inc Fund COM 128117108 10,000 10,000 114 0.0316
2019-02-13 2018-12-31 13F Calamos Conv Opp Inc Fund COM 128117108 0 -5,000 -100.00 0 -100.00
2018-11-13 2018-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 5,000 0 0.00 60 1.69 0.0229
2018-08-13 2018-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 5,000 5,000 59 0.0241
2015-11-25 2015-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 0 -28,918 -100.00 0 -100.00
2015-08-11 2015-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 28,918 379 1.33 353 -4.59 0.1592
2015-05-12 2015-03-31 13F Calamos Conv Opp Inc Fund COM 128117108 28,539 371 1.32 370 2.21 0.1633
2015-02-12 2014-12-31 13F Calamos Conv Opp Inc Fund COM 128117108 28,168 6,560 30.36 362 23.97 0.1608
2014-11-06 2014-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 21,608 251 1.18 292 -2.67 0.1353
2014-08-12 2014-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 21,357 1,748 8.91 300 10.70 0.1404
2014-05-08 2014-03-31 13F Calamos Conv Opp Inc Fund COM 128117108 19,609 242 1.25 271 5.45 0.1260
2014-02-14 2013-12-31 13F Calamos Conv Opp Inc Fund COM 128117108 19,367 3,246 20.14 257 26.60 0.1191
2013-11-12 2013-09-30 13F Calamos Conv Opp Inc Fund COM 128117108 16,121 2,246 16.19 203 16.67 0.1067
2013-08-14 2013-06-30 13F Calamos Conv Opp Inc Fund COM 128117108 13,875 13,875 174 0.0953
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.