Western Asset High Yield Opportunity Fund Inc. (HYI)
HYI moved a median of 0.00% 30 minutes after news, and +0.08% by the close. How HYI actually reacts to news — the realized, point-in-time move the market made, measured across 73 labeled events over the last three years with zero look-ahead.
HYI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 33% | 61 |
| 30-min | 0.00% | 44% | 73 |
| 60-min | +0.06% | 62% | 73 |
| to close | +0.08% | 52% | 73 |
| Middle 50% of HYI reactions | -0.09% to +0.17% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 73 |
Half of all Western Asset High Yield 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 HYI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to HYI's baseline. Nothing else.
Recent HYI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form DEF 14A Western Asset High Yield For: Oct 16 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.81% | |
| Form DEF 14A Western Asset High Yield For: Oct 16 | SEC filing · Form DEF | SEC EDGAR | -0.05% | -0.15% | |
| Form N-PX Western Asset High Yield For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.29% | -0.15% | |
| Form N-CEN Western Asset High Yield For: May 31 | SEC filing · Form N-CEN | SEC EDGAR | — | -0.40% | |
| Form N-CSR Western Asset High Yield For: May 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.19% | +0.19% | |
| Form NPORT-P Western Asset High Yield For: May 29 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.19% | |
| Form NPORT-P Western Asset High Yield For: Feb 27 | SEC filing · Form NPORT-P | SEC EDGAR | +0.05% | +0.09% | |
| Western Asset High Yield Opportunity Fund Inc. Announces Financial Position as of February 28, 2026 | Press release | Business Wire | -0.01% | +0.00% | |
| Western Asset High Yield Opportunity Fund Inc. (NYSE: HYI) Announces Portfolio Management Team Update | Press release | Business Wire | +0.00% | +0.50% | |
| Form EFFECT Western Asset High Yield | SEC filing · Form EFFECT | SEC EDGAR | +0.19% | -0.28% | |
| Form N-2/A Western Asset High Yield | SEC filing · Form N-2 | SEC EDGAR | +0.00% | -0.09% | |
| Form N-2/A Western Asset High Yield | SEC filing · Form N-2 | SEC EDGAR | +0.37% | +0.46% | |
| Form N-CSRS Western Asset High Yield For: Nov 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.00% | +0.00% | |
| Western Asset High Yield Opportunity Fund Inc. (NYSE: HYI) Announces Portfolio Management Team Update | Press release | Business Wire | +0.63% | +0.32% | |
| Form NPORT-P Western Asset High Yield For: Nov 28 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.00% | |
| Form N-2 Western Asset High Yield | SEC filing · Form N-2 | SEC EDGAR | +0.00% | -0.88% | |
| Western Asset High Yield Opportunity Fund Inc. Announces Financial Position as of August 31, 2025 | Press release | Business Wire | -0.12% | +0.00% | |
| Form NPORT-P Western Asset High Yield For: Aug 29 | SEC filing · Form NPORT-P | SEC EDGAR | -0.08% | -0.08% | |
| Western Asset High Yield Opportunity Fund Inc. Announces Results of Annual Meeting of Stockholders | Press release | Business Wire | +0.17% | +0.61% | |
| Form DEF 14A Western Asset High Yield For: Oct 17 | SEC filing · Form DEF | SEC EDGAR | -0.25% | +0.00% | |
| Form N-PX Western Asset High Yield For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | +0.00% | +0.25% | |
| Form N-CEN Western Asset High Yield For: May 31 | SEC filing · Form N-CEN | SEC EDGAR | +0.33% | +0.58% | |
| Form N-CSR Western Asset High Yield For: May 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.00% | +0.08% | |
| Form NPORT-P Western Asset High Yield For: May 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.04% | -0.04% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Final Tender Offer Results and Elimination of Term | Press release | Business Wire | +0.00% | +0.17% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Results of Special Meeting of Stockholders and Other Fund Developments | Press release | Business Wire | -0.22% | -0.29% | |
| Form DEFA14A Western Asset High Yield | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +0.86% | |
| Form NPORT-P Western Asset High Yield For: Feb 28 | SEC filing · Form NPORT-P | SEC EDGAR | +0.09% | +0.17% | |
| Form DEFA14A Western Asset High Yield | SEC filing · Form DEFA14A | SEC EDGAR | +0.87% | -0.35% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Financial Position as of February 28, 2025 | Press release | Business Wire | +0.26% | +0.17% | |
| Form DEF 14A Western Asset High Yield For: May 22 | SEC filing · Form DEF | SEC EDGAR | +0.13% | +0.25% | |
| Form PRE 14A Western Asset High Yield For: May 22 | SEC filing · Form PRE | SEC EDGAR | +0.00% | +0.34% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Stockholder Proposal | Press release | Business Wire | +0.00% | +0.17% | |
| Form N-CSRS Western Asset High Yield For: Nov 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.00% | +0.59% | |
| Form NPORT-P Western Asset High Yield For: Nov 29 | SEC filing · Form NPORT-P | SEC EDGAR | — | +0.33% | |
| Form 8-K Western Asset High Yield For: Nov 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.75% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Financial Position as of August 31, 2024 | Press release | Business Wire | -0.12% | -0.33% | |
| Form NPORT-P Western Asset High Yield For: Aug 30 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.25% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Results of Annual Meeting of Stockholders | Press release | Business Wire | +0.00% | -0.66% | |
| Form DEF 14A Western Asset High Yield For: Oct 18 | SEC filing · Form DEF | SEC EDGAR | -0.12% | +0.08% | |
| Form N-PX Western Asset High Yield For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | +0.00% | +0.41% | |
| Form N-CEN Western Asset High Yield For: May 31 | SEC filing · Form N-CEN | SEC EDGAR | — | +0.00% | |
| Form N-CSR Western Asset High Yield For: May 31 | SEC filing · Form N-CSR | SEC EDGAR | — | +0.04% | |
| Form NPORT-P Western Asset High Yield For: May 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | +0.09% | |
| Western Asset High Yield Defined Opportunity Fund Inc. Announces Financial Position as of February 29, 2024 | Press release | Business Wire | +0.43% | +0.00% | |
| Form NPORT-P Western Asset High Yield For: Feb 29 | SEC filing · Form NPORT-P | SEC EDGAR | +0.39% | +0.43% | |
| Western Asset High Yield Defined Opportunity Fund Inc. (NYSE: HYI) Announces Portfolio Management Team Update | Press release | Business Wire | -0.08% | -0.25% | |
| Form N-CSRS Western Asset High Yield For: Nov 30 | SEC filing · Form N-CSRS | SEC EDGAR | +0.04% | +0.42% | |
| Form NPORT-P Western Asset High Yield For: Nov 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | +0.00% | |
| Form NPORT-P Western Asset High Yield For: Aug 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.09% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the HYI section they belong to.
Where else HYI is measured.
HYI earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Western Asset High Yield Opportunity Fund Inc.'s median reaction calculated?
Every labeled HYI 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 73 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. 44% of HYI'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 HYI'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.