Calamos Global Dynamic Income Fund
US ˙ NasdaqGS ˙ US12811L1070

SecurityCHW / Calamos Global Dynamic Income Fund
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership20,168 shares
Latest Disclosed Value $ 146,420
Oppenheimer & Co Inc reports 8.78% decrease in ownership of CHW / Calamos Global Dynamic Income Fund

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 20,168 shares of Calamos Global Dynamic Income Fund (US:CHW) valued at $146,420 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 22,110 shares of Calamos Global Dynamic Income Fund. This represents a change in shares of -8.78% during the quarter. The current value of the position is $182,924 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)
2026-04-23 2026-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 20,168 -1,942 -8.78 146 -10.43 0.0018
2026-02-02 2025-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 22,110 232 1.06 164 -0.61 0.0023
2025-11-06 2025-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 21,878 -1,583 -6.75 165 -1.80 0.0020
2025-07-31 2025-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 23,461 6,309 36.78 167 53.21 0.0022
2025-04-23 2025-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,152 1,140 7.12 110 0.93 0.0017
2025-02-05 2024-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,012 140 0.88 108 -4.42 0.0016
2024-11-05 2024-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 15,872 135 0.86 114 5.61 0.0017
2024-08-08 2024-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 15,737 -807 -4.88 108 0.00 0.0017
2024-05-07 2024-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,544 150 0.91 108 13.83 0.0018
2024-02-13 2023-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,394 -1,190 -6.77 95 -3.09 0.0017
2023-11-08 2023-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,584 150 0.86 97 -6.73 0.0020
2023-08-03 2023-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,434 145 0.84 105 0.97 0.0021
2023-05-10 2023-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,289 139 0.81 103 8.42 0.0022
2023-02-08 2022-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,150 141 0.83 96 -7.77 0.0022
2022-11-14 2022-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,009 164 0.97 103 -10.43 0.0024
2022-08-08 2022-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,845 148 0.89 115 -22.30 0.0025
2022-05-12 2022-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,697 446 2.74 148 -8.64 0.0027
2022-02-02 2021-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,251 -1,443 -8.16 162 -4.14 0.0028
2021-11-12 2021-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,694 131 0.75 169 -11.98 0.0032
2021-08-03 2021-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 17,563 3,865 28.22 192 37.14 0.0034
2021-05-10 2021-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 13,698 13,698 140 0.0028
2021-02-11 2020-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 0 -16,534 -100.00 0 -100.00
2020-11-13 2020-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,534 158 0.96 134 11.67 0.0034
2020-08-11 2020-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 16,376 16,376 120 0.0031
2015-02-10 2014-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 0 -18,750 -100.00 0 -100.00
2014-11-12 2014-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 18,750 -3,399 -15.35 173 -20.64 0.0051
2014-08-14 2014-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 22,149 -664 -2.91 218 5.83 0.0066
2014-05-09 2014-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 22,813 1,847 8.81 206 9.57 0.0062
2014-02-12 2013-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 20,966 -14,617 -41.08 188 -37.95 0.0060
2013-11-01 2013-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 35,583 -147,809 -80.60 303 -80.20 0.0107
2013-08-14 2013-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 183,392 183,392 1,530 0.0591
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.