Calamos Convertible and High Income Fund
US ˙ NasdaqGS ˙ US12811P1084

SecurityCHY / Calamos Convertible and High Income Fund
InstitutionProspera Financial Services Inc
Latest Disclosed Ownership26,796 shares
Latest Disclosed Value $ 291,815
Prospera Financial Services Inc reports 3.60% decrease in ownership of CHY / Calamos Convertible and High Income Fund

On April 14, 2026 - Prospera Financial Services Inc filed a 13F-HR form disclosing ownership of 26,796 shares of Calamos Convertible and High Income Fund (US:CHY) valued at $291,808 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 27,796 shares of Calamos Convertible and High Income Fund. This represents a change in shares of -3.60% during the quarter. The current value of the position is $354,779 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-14 2026-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 26,796 -1,000 -3.60 292 -7.32 0.0047
2026-02-09 2025-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 27,796 -392 -1.39 314 -0.63 0.0052
2025-11-06 2025-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 28,188 -208 -0.73 316 1.28 0.0054
2025-08-06 2025-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 28,396 20 0.07 312 9.09 0.0058
2025-05-15 2025-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 28,376 -4,975 -14.92 287 -29.21 0.0066
2025-02-13 2024-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 33,351 -615 -1.81 405 -0.25 0.0094
2024-11-07 2024-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 33,966 -1,500 -4.23 405 2.53 0.0103
2024-08-13 2024-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 35,466 -1,700 -4.57 396 -9.82 0.0110
2024-08-13 2024-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 37,166 0 0.00 439 2.82 0.0131
2024-02-14 2023-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 37,166 -1,500 -3.88 426 -1.16 0.0141
2023-11-13 2023-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 38,666 -3,600 -8.52 432 -9.07 0.0167
2023-08-08 2023-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 42,266 -700 -1.63 475 1.07 0.0182
2023-05-12 2023-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 42,966 -11,651 -21.33 469 -18.58 0.0193
2023-02-08 2022-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 54,617 4,851 9.75 576 14.74 0.0289
2022-10-27 2022-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 49,766 800 1.63 502 -8.23 0.0262
2022-08-08 2022-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 48,966 -8,050 -14.12 547 -31.97 0.0279
2022-05-04 2022-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 57,016 8,300 17.04 804 2.03 0.0337
2022-02-10 2021-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 48,716 -1,000 -2.01 788 1.42 0.0341
2021-11-12 2021-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 49,716 1,787 3.73 777 -0.64 0.0387
2021-08-16 2021-06-30 13F/A-1 CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 47,929 -3,687 -7.14 782 1.56 0.0392
2021-08-12 2021-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 47,929 -3,687 782 0.0403
2021-05-06 2021-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 51,616 0 0.00 770 4.48 0.0457
2021-02-12 2020-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 51,616 51,616 737 0.0508
2020-11-04 2020-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 0 -63,869 -100.00 0 -100.00
2020-08-10 2020-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 63,869 4,201 7.04 724 37.38 0.0641
2020-05-15 2020-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 59,668 -3,050 -4.86 527 -26.29 0.0559
2020-02-12 2019-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 62,718 -7,880 -11.16 715 -7.98 0.0551
2019-10-22 2019-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 70,598 -1,200 -1.67 777 -1.89 0.0798
2019-08-14 2019-06-30 13F/A-1 CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 71,798 700 0.98 792 0.76 0.0889
2019-08-14 2019-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 73,606 2,508 693
2019-05-02 2019-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 71,098 -2,508 -3.41 786 13.42 0.2587
2019-02-13 2018-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 73,606 -6,837 -8.50 693 -31.99 0.1398
2018-10-25 2018-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 80,443 -3,992 -4.73 1,019 -5.30 0.1900
2018-07-18 2018-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 84,435 -9,208 -9.83 1,076 -1.82 0.1458
2018-04-12 2018-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 93,643 -23,592 -20.12 1,096 -21.15 0.1530
2018-01-23 2017-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 117,235 -8,600 -6.83 1,390 -7.21 0.2124
2017-10-11 2017-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 125,835 0 0.00 1,498 0.54 0.2279
2017-07-19 2017-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 125,835 3,700 3.03 1,490 7.12 0.2390
2017-04-13 2017-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 122,135 -1,800 -1.45 1,391 6.18 0.2507
2017-01-11 2016-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 123,935 -6,098 -4.69 1,310 -8.52 0.2566
2016-10-12 2016-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 130,033 4,748 3.79 1,432 7.75 0.2876
2016-07-26 2016-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 125,285 17,800 16.56 1,329 18.98 0.2748
2016-04-12 2016-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 107,485 5,700 5.60 1,117 4.39 0.2486
2016-01-12 2015-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 101,785 3,000 3.04 1,070 -0.37 0.2347
2015-10-16 2015-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 98,785 7,097 7.74 1,074 -11.89 0.2717
2015-08-07 2015-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 91,688 7,117 8.42 1,219 1.75 0.2901
2015-04-22 2015-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 84,571 7,990 10.43 1,198 13.13 0.2668
2015-01-14 2014-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 76,581 -11,360 -12.92 1,059 -15.08 0.2640
2014-10-16 2014-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 87,941 -26,289 -23.01 1,247 -26.26 0.3361
2014-07-07 2014-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 114,230 72,697 175.03 1,691 201.96 0.4575
2014-04-04 2014-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 41,533 41,533 560 0.1769
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.