Company: CHY
Filing Date: 2025-02-21
Form Type: N-2ASR
Source: 0001104659-25-016081
Chunk: 183

Company: CALAMOS CONVERTIBLE & HIGH INCOME FUND
Filing Date: 2025-02-21
Form: N-2ASR
Chunk 183
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 diversified, closed-end management investment company. Our investment objective is to provide total return through a combination of capital appreciation and current income. We are offering an aggregate principal amount of $[] Series Calamos Notes in this prospectus supplement. This prospectus supplement is not complete and should be read in conjunction with our prospectus dated [], 20[] (the “prospectus”), which accompanies this prospectus supplement. This prospectus supplement does not include all information that you should consider before purchasing any Calamos Notes. You should read this prospectus supplement and our prospectus prior to purchasing any Calamos Notes. The notes offered in this prospectus supplement are referred to as “Calamos Notes.” Individual series of Calamos Notes are referred to as a “series.” Except as otherwise described in this prospectus supplement, the terms of this series and all other series are the same. Investing in Calamos Notes involves certain risks, including the risks associated with the Fund’s use of leverage. See “Risk Factors” beginning on page [] of the accompanying prospectus and on page [] of this prospectus supplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

|                                     |     |   | Per Share |     |   | Total |
|:------------------------------------|:----|:--|:----------|:----|:--|:------|
| Public offering price               |     | $ | [ ]       |     | $ | [ ]   |
| Sales load                          |     | $ | [ ]       |     | $ | [ ]   |
| Proceeds to us (before expenses)(1) |     | $ | [ ]       |     | $ | [ ]   |

(1) Does not include offering expenses payable to us estimated to be $[]. The underwriters expect to deliver the Series Preferred Shares in book-entry form, through the facilities of The Depository Trust Company, to broker-dealers on or about [], 20[]. [UNDERWRITER(S)] [], 20[] This prospectus supplement has been filed with the Securities and Exchange Commission (the “Commission”). Additional copies of this prospectus supplement, the prospectus, the statement of additional information dated [], as supplemented from time to time, or the Fund’s annual or semi-annual reports are available by calling (800) 582-6959 or by writing to the Fund, or you