Calamos Convertible and High Income Fund - Closed End Fund (CHY)
CHY moved a median of 0.00% 30 minutes after news, and +0.08% by the close. How CHY actually reacts to news — the realized, point-in-time move the market made, measured across 53 labeled events over the last three years with zero look-ahead.
CHY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 50% | 46 |
| 30-min | 0.00% | 49% | 53 |
| 60-min | 0.00% | 49% | 53 |
| to close | +0.08% | 51% | 53 |
| Middle 50% of CHY reactions | -0.12% to +0.13% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 53 |
Half of all Calamos Convertible and High Income Fund - Closed End Fund news events land between -0.12% and +0.13% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when CHY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CHY's baseline. Nothing else.
Recent CHY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jul 31 | SEC filing · Form NPORT-P | SEC EDGAR | -0.09% | +1.21% | |
| Form N-PX CALAMOS CONVERTIBLE & For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.23% | -0.15% | |
| Form NPORT-P/A CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.02% | +0.23% | |
| Form N-23C-2 CALAMOS CONVERTIBLE & For: Jul 24 | SEC filing · Form N-23C-2 | SEC EDGAR | +0.08% | -1.24% | |
| Form N-CSRS CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.04% | -0.07% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.02% | -0.04% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jan 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.28% | |
| Form N-CEN CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CEN | SEC EDGAR | -0.26% | -0.26% | |
| Form N-CSR CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.04% | +0.08% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.01% | +0.36% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jul 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.29% | +0.47% | |
| Form N-PX CALAMOS CONVERTIBLE & For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.55% | +0.09% | |
| Form N-CSRS CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.02% | +0.09% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.18% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jan 31 | SEC filing · Form NPORT-P | SEC EDGAR | -0.05% | +0.10% | |
| Form N-2ASR CALAMOS CONVERTIBLE & | SEC filing · Form N-2ASR | SEC EDGAR | -0.14% | -0.67% | |
| Form N-CEN CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CEN | SEC EDGAR | -0.13% | -0.17% | |
| Form N-CSR CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CSR | SEC EDGAR | — | -0.16% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.01% | -0.24% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jul 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.08% | +0.76% | |
| Form N-PX CALAMOS CONVERTIBLE & For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | — | -0.19% | |
| Form N-23C-2 CALAMOS CONVERTIBLE & For: Aug 02 | SEC filing · Form N-23C-2 | SEC EDGAR | -0.18% | +2.25% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form NPORT-P | SEC EDGAR | — | +0.49% | |
| Form N-CSRS CALAMOS CONVERTIBLE & For: Apr 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.09% | +0.36% | |
| Form 8-K CALAMOS CONVERTIBLE & For: May 14 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.64% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Jan 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.38% | +0.94% | |
| Form N-CEN CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CEN | SEC EDGAR | +0.35% | +0.09% | |
| Form N-CSR CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.00% | -2.80% | |
| Form NPORT-P CALAMOS CONVERTIBLE & For: Oct 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.22% | -0.17% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CHY section they belong to.
Where else CHY is measured.
CHY earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| BlackRock Capital Investment Corporation - Closed End Fund (BKCC) | 53 | -0.13% | 36% |
| Calamos Convertible Opportunities and Income Fund - Closed End Fund (CHI) | 53 | +0.10% | 51% |
| North American Financial 15 Sp (FFN_TSE) | 53 | +0.17% | 61% |
| Flow Capital Corp (FW_CDNX) | 53 | 0.00% | 8% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Financial Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Calamos Convertible and High Income Fund - Closed End Fund's median reaction calculated?
Every labeled CHY news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 53 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 49% of CHY's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does CHY's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.