Western Asset Mortgage Opportunity Fund Inc. (DMO)
DMO moved a median of 0.00% 30 minutes after news, and -0.09% by the close. How DMO actually reacts to news — the realized, point-in-time move the market made, measured across 63 labeled events over the last three years with zero look-ahead.
DMO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 44% | 45 |
| 30-min | 0.00% | 38% | 61 |
| 60-min | 0.00% | 47% | 62 |
| to close | -0.09% | 33% | 63 |
| Middle 50% of DMO reactions | -0.09% to +0.17% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 63 |
Half of all Western Asset Mortgage Opportunity Fund Inc. news events land between -0.09% and +0.17% 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 DMO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to DMO's baseline. Nothing else.
Recent DMO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form DEF 14A Western Asset Mortgage For: Oct 16 | SEC filing · Form DEF | SEC EDGAR | -0.21% | +0.10% | |
| Form DEF 14A Western Asset Mortgage For: Oct 16 | SEC filing · Form DEF | SEC EDGAR | — | -0.51% | |
| Form NPORT-P Western Asset Mortgage For: Jun 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.39% | |
| Form N-CSRS Western Asset Mortgage For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.49% | +0.49% | |
| Form N-PX Western Asset Mortgage For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | — | -0.28% | |
| Form NPORT-P Western Asset Mortgage For: Mar 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.14% | -0.50% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of March 31, 2026 | Press release | Business Wire | +0.00% | +0.91% | |
| Form N-CEN Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | +0.00% | -0.92% | |
| Form N-CSR Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | -0.27% | -0.09% | |
| Form NPORT-P Western Asset Mortgage For: Dec 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | +0.18% | |
| Western Asset Mortgage Opportunity Fund Inc. (NYSE: DMO) Announces Portfolio Management Team Update | Press release | Business Wire | +0.23% | -0.09% | |
| Form NPORT-P Western Asset Mortgage For: Sep 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.03% | -0.26% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of September 30, 2025 | Press release | Business Wire | +0.28% | -0.51% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Results of Annual Meeting of Stockholders | Press release | Business Wire | +0.00% | +0.84% | |
| Form DEF 14A Western Asset Mortgage For: Oct 17 | SEC filing · Form DEF | SEC EDGAR | — | +0.04% | |
| Form N-CSRS Western Asset Mortgage For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.14% | +0.42% | |
| Form NPORT-P Western Asset Mortgage For: Jun 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.09% | -0.34% | |
| Form N-PX Western Asset Mortgage For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | +0.08% | +0.00% | |
| Form NPORT-P Western Asset Mortgage For: Mar 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.43% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of March 31, 2025 | Press release | Business Wire | +0.00% | -0.34% | |
| Form N-CEN Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | — | -0.21% | |
| Form N-CSR Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | -0.04% | +0.42% | |
| Form NPORT-P Western Asset Mortgage For: Dec 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.03% | |
| Form NPORT-P Western Asset Mortgage For: Sep 30 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.17% | |
| Form 8-K Western Asset Mortgage For: Nov 15 | SEC filing · Form 8-K | SEC EDGAR | +0.59% | +0.08% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of September 30, 2024 | Press release | Business Wire | +0.02% | -0.33% | |
| WESTERN ASSET MORTGAGE OPPORTUNITY FUND INC. Announces Results of Annual Meeting of Stockholders | Press release | Business Wire | +0.16% | +0.41% | |
| Form POS EX Western Asset Mortgage | SEC filing · Form POS | SEC EDGAR | -0.08% | +0.33% | |
| Form DEF 14A Western Asset Mortgage For: Oct 18 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.00% | |
| Form EFFECT Western Asset Mortgage | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | -0.42% | |
| Form N-CSRS Western Asset Mortgage For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | — | -0.10% | |
| Form N-2/A Western Asset Mortgage | SEC filing · Form N-2 | SEC EDGAR | +0.17% | -0.74% | |
| Form NPORT-P Western Asset Mortgage For: Jun 28 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.08% | |
| Form N-PX Western Asset Mortgage For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | — | -0.08% | |
| Form NPORT-P Western Asset Mortgage For: Mar 28 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.17% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of March 31, 2024 | Press release | Business Wire | +0.00% | -0.77% | |
| Form N-2 Western Asset Mortgage | SEC filing · Form N-2 | SEC EDGAR | +0.18% | +0.70% | |
| Form D/A Western Asset Mortgage | SEC filing · Form D | SEC EDGAR | +0.00% | +0.00% | |
| Form N-CEN Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | +0.00% | +0.26% | |
| Form N-CSR Western Asset Mortgage For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.00% | -0.39% | |
| Western Asset Mortgage Opportunity Fund Inc. (NYSE: DMO) Announces Portfolio Management Team Update | Press release | Business Wire | -0.17% | +0.73% | |
| Form NPORT-P Western Asset Mortgage For: Dec 29 | SEC filing · Form NPORT-P | SEC EDGAR | +0.26% | +0.27% | |
| Form NPORT-P Western Asset Mortgage For: Sep 29 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.19% | |
| Western Asset Mortgage Opportunity Fund Inc. Announces Financial Position as of September 30, 2023 | Press release | Business Wire | +0.00% | +0.00% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the DMO section they belong to.
Where else DMO is measured.
DMO earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| BlackRock Income Trust Inc. (The) (BKT) | 63 | -0.04% | 36% |
| BANKIA SA OTHER (BNKXF) | 63 | 0.00% | 11% |
| Eason Technology Limited American Depositary Shares (each representing sixty-thousand (60,000) Ordinary Shares) (DXF) | 63 | -0.02% | 47% |
| Eaton Vance California Municipal Bond Fund Common Shares of Beneficial Interest, $.01 par value (EVM) | 63 | 0.00% | 48% |
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.
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How the numbers are made.
How is Western Asset Mortgage Opportunity Fund Inc.'s median reaction calculated?
Every labeled DMO 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 63 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. 38% of DMO'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 DMO'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.