Calamos Convertible and High Income Fund
US ˙ NasdaqGS ˙ US12811P1084

SecurityCHY / Calamos Convertible and High Income Fund
InstitutionCornerstone Advisory, LLC
Latest Disclosed Ownership278,497 shares
Latest Disclosed Value $ 3,032,834
Cornerstone Advisory, LLC reports 23.58% decrease in ownership of CHY / Calamos Convertible and High Income Fund

On May 4, 2026 - Cornerstone Advisory, LLC filed a 13F-HR form disclosing ownership of 278,497 shares of Calamos Convertible and High Income Fund (US:CHY) valued at $3,032,832 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 364,453 shares of Calamos Convertible and High Income Fund. This represents a change in shares of -23.58% during the quarter. The current value of the position is $3,687,300 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)
2026-05-04 2026-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 278,497 -85,956 -23.58 3,033 -26.43 0.2871
2026-01-28 2025-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 364,453 -33,847 -8.50 4,122 -7.77 0.3930
2025-11-07 2025-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 398,300 -25,631 -6.05 4,469 -4.10 0.4389
2025-07-30 2025-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 423,931 -810 -0.19 4,659 7.77 0.5003
2025-05-07 2025-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 424,741 424,741 4,324 0.5046
2023-05-04 2023-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 0 -50,070 -100.00 0 -100.00
2023-02-13 2022-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 50,070 12,378 32.84 528 38.95 0.1041
2022-10-26 2022-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 37,692 -8,015 -17.54 380 -25.64 0.0849
2022-08-02 2022-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 45,707 -4,648 -9.23 511 -28.03 0.1169
2022-05-20 2022-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 50,355 -5,269 -9.47 710 -21.11 0.1083
2022-02-23 2021-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 55,624 5,269 10.46 900 14.36 0.1294
2021-11-16 2021-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 50,355 0 0.00 787 -4.26 0.1303
2021-08-16 2021-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 50,355 0 0.00 822 9.45 0.1385
2021-05-13 2021-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 50,355 -51,027 -50.33 751 -48.14 0.1421
2021-05-11 2020-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 101,382 -29,819 -22.73 1,448 -5.48 0.2931
2020-11-12 2020-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 131,201 -12,897 -8.95 1,532 -6.24 0.3574
2020-08-10 2020-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 144,098 -647,626 -81.80 1,634 -76.65 0.4263
2020-05-11 2020-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 791,724 -122,572 -13.41 6,999 -32.85 2.1280
2020-02-12 2019-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 914,296 -328,936 -26.46 10,423 -23.79 2.1581
2019-11-12 2019-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 1,243,232 -98,026 -7.31 13,676 -7.56 2.9506
2019-08-08 2019-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 1,341,258 -89,487 -6.25 14,794 -4.70 3.2069
2019-05-08 2019-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 1,430,745 -97,277 -6.37 15,523 8.08 3.4153
2019-02-12 2018-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 1,528,022 1,528,022 14,363 3.7686
2018-11-13 2018-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 0 -10,016 -100.00 0 -100.00
2018-08-09 2018-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 10,016 -461,285 -97.87 128 -97.68 0.0421
2018-05-10 2018-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 471,301 -72,055 -13.26 5,514 -14.37 1.9859
2018-02-09 2017-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 543,356 -893,337 -62.18 6,439 -62.34 2.2066
2017-11-14 2017-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 1,436,693 -894,369 -38.37 17,097 -38.05 5.7856
2017-08-08 2017-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 2,331,062 -403,296 -14.75 27,600 -11.38 9.2368
2017-05-15 2017-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 2,734,358 2,555,617 1,429.79 31,144 1,551.33 15.7236
2017-02-13 2016-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 178,741 11,296 6.75 1,886 2.28 1.4153
2016-11-10 2016-09-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 167,445 20,706 14.11 1,844 18.43 1.5141
2016-08-10 2016-06-30 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 146,739 46,946 47.04 1,557 50.14 1.3089
2016-05-16 2016-03-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 99,793 16,293 19.51 1,037 18.11 0.8859
2016-03-03 2015-12-31 13F CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 83,500 83,500 878 0.7560
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.