Company: CHY
Filing Date: 2025-12-29
Form Type: N-CSR
Source: 0001104659-25-124662
Chunk: 24

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-12-29
Form: N-CSR
Chunk 24
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 portfolio return is positive and greater than the cost of leverage and decreases the return when the portfolio return is negative or less than the cost of leverage. The figures appearing in the table are hypothetical and actual returns may be greater or less than those appearing in the table.

| Assumed Portfolio Return (Net of Expenses) |     | (10.00 | )% |     | (5.00 | )% |     |  0.00 | % |     | 5.00 | % |     | 10.00 | % |
| Corresponding Common Share Return(1)​      |     | (15.97 | )  |     | (8.91 | )  |     | (1.86 | ) |     | 5.20 |   |     | 12.25 |   |

(1)Includes interest expense on the borrowings under the SSB Agreement, accrued at interest rates in effect on October 31, 2025 of 4.38%, and dividend expense on the MRP Shares.

CALAMOS CLOSED-END FAMILY OF FUNDS ANNUAL REPORT
18 Additional Information About the Funds (Unaudited)

Calamos Dynamic Convertible and Income Fund GROWTH OF $10,000: FOR THE 10-YEAR PERIOD ENDED 10/31/25 AVERAGE ANNUAL TOTAL RETURN †AS OF 10/31/25

|                                               |     | 1    
 YEAR |       |   |     | 5     
 YEARS |       |   |     | 10    
 YEARS |       |   |     | SINCE     
 INCEPTION |       |   |
| Calamos Dynamic Convertible and Income Fund   |     |      |       |   |     |       |       |   |     |       |       |   |     |           |       |   |
| Market Price                                  |     |      |  1.84 | % |     |       | 10.22 | % |     |       | 12.26 | % |     |           |  9.14 | % |
| NAV                                           |     |      | 26.63 |   |     |       |  7.69 |   |     |       | 10.83 |   |     |           |  9.57 |   |
| 80%VXAO-20%BBGUSHY2%Cap Index                 |     |      | 19.44 |