Calamos Global Dynamic Income Fund
US ˙ NasdaqGS ˙ US12811L1070

SecurityCHW / Calamos Global Dynamic Income Fund
InstitutionUBS Group AG
Latest Disclosed Ownership201,895 shares
Latest Disclosed Value $ 1,465,758
UBS Group AG reports 0.15% increase in ownership of CHW / Calamos Global Dynamic Income Fund

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 201,895 shares of Calamos Global Dynamic Income Fund (US:CHW) valued at $1,465,758 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 201,602 shares of Calamos Global Dynamic Income Fund. This represents a change in shares of 0.15% during the quarter. The current value of the position is $1,823,112 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)
2026-05-05 2026-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 201,895 293 0.15 1,466 -1.88 0.0000
2026-01-29 2025-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 201,602 3,542 1.79 1,494 0.00 0.0000
2025-11-13 2025-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 198,060 4,167 2.15 1,493 8.03 0.0002
2025-08-14 2025-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 193,893 461 0.24 1,382 11.81 0.0002
2025-05-13 2025-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 193,432 -1,357 -0.70 1,236 -5.94 0.0002
2025-02-14 2024-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 194,789 896 0.46 1,315 -5.47 0.0002
2024-11-14 2024-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 193,893 2,986 1.56 1,390 6.19 0.0003
2024-08-14 2024-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 190,907 -3,251 -1.67 1,310 3.64 0.0003
2024-05-13 2024-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 194,158 25,133 14.87 1,264 29.54 0.0003
2024-02-09 2023-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 169,025 2,177 1.30 975 5.52 0.0003
2023-11-09 2023-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 166,848 -3,404 -2.00 924 -9.77 0.0003
2023-08-11 2023-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 170,252 -9,873 -5.48 1,025 -4.92 0.0003
2023-05-12 2023-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 180,125 -17,133 -8.69 1,077 -2.09 0.0004
2023-02-08 2022-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 197,258 -19,500 -9.00 1,101 -16.35 0.0004
2022-11-10 2022-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 216,758 20,564 10.48 1,315 -1.72 0.0006
2022-08-10 2022-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 196,194 2,248 1.16 1,338 -22.30 0.0005
2022-05-16 2022-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 193,946 -11,441 -5.57 1,722 -15.88 0.0006
2022-02-14 2021-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 205,387 14,029 7.33 2,047 11.74 0.0006
2021-11-15 2021-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 191,358 2,907 1.54 1,832 -11.28 0.0006
2021-08-13 2021-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 188,451 -168 -0.09 2,065 7.11 0.0007
2021-05-12 2021-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 188,619 21,524 12.88 1,928 20.65 0.0006
2021-02-11 2020-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 167,095 20,763 14.19 1,598 34.29 0.0005
2020-11-12 2020-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 146,332 1,528 1.06 1,190 12.37 0.0004
2020-07-31 2020-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 144,804 53,397 58.42 1,059 101.71 0.0004
2020-05-01 2020-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 91,407 4,911 5.68 525 -30.19 0.0002
2020-02-14 2019-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 86,496 -604 -0.69 752 10.43 0.0003
2019-11-14 2019-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 87,100 4,484 5.43 681 1.79 0.0003
2019-08-14 2019-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 82,616 2,368 2.95 669 4.21 0.0003
2019-05-14 2019-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 80,248 -2,581 -3.12 642 18.45 0.0003
2019-02-14 2018-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 82,829 -225,054 -73.10 542 -80.57 0.0002
2018-11-14 2018-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 307,883 215,033 231.59 2,789 233.61 0.0011
2018-08-14 2018-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 92,850 -5,112 -5.22 836 -5.11 0.0004
2018-05-15 2018-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 97,962 14,688 17.64 881 16.38 0.0004
2018-02-14 2017-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 83,274 4,803 6.12 757 6.77 0.0003
2017-11-14 2017-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 78,471 -47,013 -37.47 709 -33.80 0.0003
2017-11-14 2017-06-30 13F/A-1 CALAMOS GBL DYN INCOME FUND COM 12811L107 125,484 295 0.24 1,071 9.73 0.0006
2017-08-14 2017-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 125,484 295 1,071
2017-11-14 2017-03-31 13F/A-1 CALAMOS GBL DYN INCOME FUND COM 12811L107 125,189 -2,297,940 -94.83 976 -94.22 0.0005
2017-05-12 2017-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 125,189 -2,297,940 976
2017-02-14 2016-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 2,423,129 181,206 8.08 16,889 0.31 0.0093
2016-11-14 2016-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 2,241,923 207,615 10.21 16,836 17.89 0.0100
2016-08-12 2016-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 2,034,308 43,557 2.19 14,281 2.04 0.0090
2016-05-12 2016-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,990,751 624,359 45.69 13,995 43.05 0.0094
2016-02-16 2015-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,366,392 -60,967 -4.27 9,783 -1.53 0.0064
2015-11-13 2015-09-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,427,359 -298,766 -17.31 9,935 -32.29 0.0070
2015-08-14 2015-06-30 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,726,125 65,731 3.96 14,672 0.53 0.0098
2015-05-14 2015-03-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,660,394 216,480 14.99 14,595 9.51 0.0101
2015-02-17 2014-12-31 13F CALAMOS GBL DYN INCOME FUND COM 12811L107 1,443,914 1,443,914 13,327 0.0093
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.