Company: CHY
Filing Date: 2025-12-29
Form Type: N-CSR
Source: 0001104659-25-124662
Chunk: 9

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-12-29
Form: N-CSR
Chunk 9
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, assuming (1) total annual expenses of 3.98% of net assets attributable to common shareholders; (2) a 5% annual return; and (3) all distributions are reinvested at net asset value:

|                                                |     | 1 YEAR |    |     | 3 YEARS |     |     | 5 YEARS |     |     | 10 YEARS |     |
|:-----------------------------------------------|:----|:-------|---:|:----|:--------|----:|:----|:--------|----:|:----|:---------|----:|
| Total Expenses Paid by Common Shareholders(7)​ |     | $      | 40 |     | $       | 121 |     | $       | 204 |     | $        | 419 |

The example should not be considered a representation of future expenses. Actual expenses may be greater or less than those assumed. Moreover, our actual rate of return may be greater or less than the hypothetical 5% return shown in the example. (1)If the securities to which this prospectus relates are sold to or through underwriters, the prospectus supplement will set forth any applicable sales load and the estimated offering expenses borne by us. (2)Shareholders will pay a $15.00 transaction fee plus a $0.02 per share brokerage charge if they direct the Plan Agent (as defined below) to sell common shares held in a Plan account. In addition, each participant will pay a pro rata share of brokerage commissions incurred with respect to the Plan Agent's open-market purchases in connection with the reinvestment of dividends or distributions. If a participant elects to have the Plan Agent sell part or all of his or her common shares and remit the proceeds, such participant will be charged his or her pro rata share of brokerage commissions on the shares sold. See "Dividends and Distributions on Common Shares; Automatic Dividend Reinvestment Plan". (3)The Fund pays Calamos an annual management fee, payable monthly in arrears, for its investment management services in an amount equal to 0.80% of the Fund's average weekly managed assets. In accordance with the requirements of the Commission, the table above shows the Fund's management fee as a percentage of average net assets attributable to common shareholders. By showing the management fee as a percentage of net assets, the management fee is not expressed as a percentage of all of the assets the Fund intends to invest. For purposes of the