MFS Municipal Income Trust (CMU)
CMU moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How CMU actually reacts to news — the realized, point-in-time move the market made, measured across 104 labeled events over the last three years with zero look-ahead.
CMU’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 19% | 81 |
| 30-min | 0.00% | 33% | 96 |
| 60-min | 0.00% | 40% | 99 |
| to close | 0.00% | 39% | 102 |
| Middle 50% of CMU reactions | -0.04% to +0.15% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 104 |
Half of all MFS Municipal Income Trust news events land between -0.04% and +0.15% 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 CMU moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CMU's baseline. Nothing else.
Recent CMU events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| MFS High Yield Municipal Trust Announces Final Results of Tender Offer | Press release | Business Wire | -0.28% | -1.14% | |
| MFS High Yield Municipal Trust Announces Preliminary Results of Tender Offer | Press release | Business Wire | +0.28% | -1.26% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Feb 28 | SEC filing · Form NPORT-P | SEC EDGAR | +0.27% | -0.01% | |
| MFS High Yield Municipal Trust Commences Tender Offer | Press release | Business Wire | +0.00% | +0.28% | |
| Form N-23C-2 MFS HIGH YIELD MUNICIPAL For: Apr 01 | SEC filing · Form N-23C-2 | SEC EDGAR | -0.93% | +0.56% | |
| MFS High Yield Municipal Trust Announces Optional Partial Redemption of Preferred Shares | Press release | Business Wire | -0.93% | +0.56% | |
| MFS High Yield Municipal Trust Announces Tender Offer | Press release | Business Wire | +0.55% | +0.69% | |
| Form N-CEN MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CEN | SEC EDGAR | — | +0.01% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.84% | |
| Form N-CSR MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CSR | SEC EDGAR | +0.00% | +0.00% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Aug 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.14% | |
| Form N-PX MFS HIGH YIELD MUNICIPAL For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.17% | +0.14% | |
| Form N-CSRS MFS HIGH YIELD MUNICIPAL For: May 31 | SEC filing · Form N-CSRS | SEC EDGAR | +0.00% | +0.00% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: May 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.62% | |
| MFS Amends Shareholder Agreement for MFS High Yield Municipal Trust | Press release | Business Wire | -0.15% | +0.61% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Feb 28 | SEC filing · Form NPORT-P | SEC EDGAR | +0.15% | -0.30% | |
| Form N-CEN MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CEN | SEC EDGAR | +0.05% | -0.56% | |
| Form N-CSR MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CSR | SEC EDGAR | +0.27% | -0.14% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.43% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Aug 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.56% | |
| Form N-PX MFS HIGH YIELD MUNICIPAL For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | +0.00% | +0.28% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: May 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.00% | |
| Form N-CSRS MFS HIGH YIELD MUNICIPAL For: May 31 | SEC filing · Form N-CSRS | SEC EDGAR | +0.00% | -0.14% | |
| Form N-23C-2 MFS HIGH YIELD MUNICIPAL For: Jun 17 | SEC filing · Form N-23C-2 | SEC EDGAR | +0.00% | +0.29% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Feb 29 | SEC filing · Form NPORT-P | SEC EDGAR | -0.61% | -0.89% | |
| Form N-CEN MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CEN | SEC EDGAR | +0.00% | -1.50% | |
| Form N-CSR MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form N-CSR | SEC EDGAR | — | +0.00% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Nov 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.89% | |
| MFS High Yield Municipal Trust Announces Final Results of Tender Offer | Press release | Business Wire | +0.00% | -0.33% | |
| MFS High Yield Municipal Trust Announces Preliminary Results of Tender Offer | Press release | Business Wire | -0.50% | -0.50% | |
| Form NPORT-P MFS HIGH YIELD MUNICIPAL For: Aug 31 | SEC filing · Form NPORT-P | SEC EDGAR | -1.06% | +0.35% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CMU section they belong to.
Where else CMU is measured.
CMU earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Clough Global Opportunities Fund (GLO) | 105 | 0.00% | 45% |
| Blackrock Health Sciences Trust (BME) | 104 | -0.00% | 48% |
| Gabelli Multi-Media Trust, Inc. (The) (GGT) | 104 | 0.00% | 39% |
| Eaton Vance California Municipal Income Trust Shares of Beneficial Interest (CEV) | 103 | 0.00% | 47% |
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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How the numbers are made.
How is MFS Municipal Income Trust's median reaction calculated?
Every labeled CMU 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 104 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. 33% of CMU'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 CMU'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.