Mediaco Holding Inc. - Class A (MDIA)
MDIA moved a median of -0.17% 30 minutes after news, and -0.83% by the close. How MDIA actually reacts to news — the realized, point-in-time move the market made, measured across 178 labeled events over the last three years with zero look-ahead.
MDIA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 33% | 120 |
| 30-min | -0.17% | 35% | 153 |
| 60-min | 0.00% | 41% | 163 |
| to close | -0.83% | 39% | 174 |
| Middle 50% of MDIA reactions | -2.43% to +0.96% |
|---|---|
| Median reaction (30-min) | -0.17% |
| Measured reactions | 178 |
Half of all Mediaco Holding Inc. - Class A news events land between -2.43% and +0.96% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when MDIA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MDIA's baseline. Nothing else.
Recent MDIA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q Mediaco Holding Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | -7.78% | |
| Form 8-K Mediaco Holding Inc. For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | — | -7.78% | |
| MediaCo Reports Second Quarter Financial Results | Press release | Business Wire | — | -7.78% | |
| Form 8-K Mediaco Holding Inc. For: Aug 07 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K Mediaco Holding Inc. For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | — | +3.00% | |
| MediaCo Appoints Brian Fisher as President | Press release | Business Wire | — | +3.00% | |
| MediaCo Announces Board Leadership Changes | Press release | Business Wire | +0.00% | +6.49% | |
| Form ARS Mediaco Holding Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -0.46% | |
| Form DEF 14A Mediaco Holding Inc. For: Aug 07 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -0.46% | |
| Form DEFA14A Mediaco Holding Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -0.46% | |
| Sigma Audio Networks Powered by MediaCo and WAPA Media Announce Strategic Partnership to Expand La Tendencia de Molusco Across the U.S. | Press release | Business Wire | +50.70% | +9.86% | |
| MediaCo Launches EstrellaTV on KYVV in San Antonio, Expanding Full-Power Distribution in a Key Hispanic Market | Press release | Business Wire | — | -4.08% | |
| Form 8-K Mediaco Holding Inc. For: May 15 | SEC filing · Form 8-K | SEC EDGAR | -2.94% | +1.31% | |
| MediaCo Reports First Quarter Financial Results | Press release | Business Wire | +0.00% | -2.14% | |
| Form 10-Q Mediaco Holding Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -2.06% | |
| Form 10-K/A Mediaco Holding Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +1.70% | |
| MediaCo Appoints Roberto Castro to Senior Vice President and Corporate Controller | Press release | Business Wire | — | -2.65% | |
| EstrellaTV Continues Breakout Momentum in Q1 2026, Leading All Spanish-Language Broadcast Networks in Growth | Press release | Business Wire | — | -2.74% | |
| Sigma Audio Networks, Powered by MediaCo, Expands National Platform with Don Cheto and HOT 97 Mornings with Mero | Press release | Business Wire | +0.45% | -0.55% | |
| Form S-8 Mediaco Holding Inc. | SEC filing · Form S-8 | SEC EDGAR | -2.00% | -2.11% | |
| Form 10-K Mediaco Holding Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +9.37% | |
| Form 8-K Mediaco Holding Inc. For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +9.37% | |
| MediaCo Reports Fourth Quarter Financial Results | Press release | Business Wire | +0.00% | +9.37% | |
| MediaCo’s HOT 97 TV Channel to Launch March 31st in New York on WASA OTA and Spectrum | Press release | Business Wire | +0.00% | +2.46% | |
| MediaCo Audio Delivers Strong February Ratings Growth Across Key Markets | Press release | Business Wire | — | +1.72% | |
| TBL Team Boxing League Announces Broadcast Partnership with MediaCo's EstrellaTV | Press release | PR Newswire | — | -5.12% | |
| MediaCo Strengthens Spanish-Language News Strategy with Senior Advisor Alina Falcón | Press release | Business Wire | — | -1.83% | |
| MediaCo Appoints Armando Diaz as Vice President, Operations & Efficiency | Press release | Business Wire | — | -1.99% | |
| Sigma Audio Networks, Powered by MediaCo, Launches InterWave Digital Audio Network Reaching 210 Million Monthly Unique Users | Press release | Business Wire | +0.22% | +0.98% | |
| MediaCo Appoints Neida Gotay as Vice President, Integrated Sales | Press release | Business Wire | — | +1.82% | |
| Sigma Audio Networks, powered by MediaCo, Launches “Alpha Woman” A Bilingual Audio Network Where Her Voice Leads – Women First. Culture Forward. | Press release | Business Wire | — | +3.34% | |
| MediaCo Promotes René Santaella to Chief Growth & Innovation Officer | Press release | Business Wire | +0.00% | -2.00% | |
| EstrellaTV Delivers Five-Year Highs, Leads Broadcast in Growth | Press release | Business Wire | -7.10% | +3.20% | |
| Victor Hugo Guzman Joins MediaCo as Director of Local & National Sales Development to Accelerate Revenue Growth and Political Sales Strategy | Press release | Business Wire | +2.78% | +0.98% | |
| MediaCo's EstrellaTV Announces Spanish-language Broadcast and Streaming Schedule for COMBATE GLOBAL 2026 Season | Press release | Business Wire | — | -2.75% | |
| MediaCo’s HOT 97’s “Mornings with Mero” Rises to #3 in New York | Press release | Business Wire | — | -0.17% | |
| MediaCo’s EstrellaTV Rewrites History with Record-Breaking Prime Time Growth, Leading All Broadcast Networks in 2025 | Press release | Business Wire | — | +0.53% | |
| MediaCo’s EstrellaTV Extends Breakout Momentum to Start 2026, Delivering Category-Leading Prime Time Growth | Press release | Business Wire | +1.84% | -5.73% | |
| MediaCo Appoints Maire Mason to Lead Local Radio and Television Operations, Driving Major New York Market Shift | Press release | Business Wire | — | +4.62% | |
| MediaCo Posts Breakout End-of-Year Audio Growth, Ranking Among the Fastest-Growing Radio Broadcasters in America | Press release | Business Wire | +4.14% | -0.84% | |
| MediaCo’s EstrellaTV to Televise and Stream Tigres and FC Juárez Home Matches Throughout Liga MX Clausura 2026 | Press release | Business Wire | -4.32% | -2.24% | |
| MediaCo’s EstrellaTV Announces the Launch of New Orlando Television Station, Expanding Presence in One of the Nation’s Fastest-Growing Hispanic Markets | Press release | Business Wire | -2.75% | +4.24% | |
| MediaCo Announces Historic Audience Growth for EstrellaTV in 2025 | Press release | Business Wire | +5.69% | -2.86% | |
| Sigma and MediaCo Launch Audio Network Targeting 150 Million Multicultural Population Nationwide | Press release | Business Wire | +0.00% | +4.99% | |
| MediaCo Announces Key Leadership Promotions Across Sales, Marketing, Research and Operations | Press release | Business Wire | -0.17% | +4.21% | |
| MediaCo’s HOT 97 Launches New Morning Show: HOT 97 Mornings with Mero, Premiering Tuesday, January 13, 6AM–10AM | Press release | Business Wire | — | -1.72% | |
| MediaCo’s EstrellaTV and EVTV MIAMI Announce Strategic Alliance for Real-Time Breaking News Coverage from Venezuela and Around the World | Press release | Business Wire | — | +0.30% | |
| MediaCo’s HOT 97 TV Launches Daily Live News Show for the First Time, Dropping January 2026! | Press release | Business Wire | — | -2.67% | |
| Form 8-K Mediaco Holding Inc. For: Dec 19 | SEC filing · Form 8-K | SEC EDGAR | — | +1.02% | |
| MediaCo Expands Don Cheto Network Footprint with New Phoenix Affiliate, KZOM-FM 96.5 | Press release | Business Wire | +0.00% | -2.36% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MDIA section they belong to.
Where else MDIA is measured.
MDIA earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Mediaco Holding Inc. - Class A's median reaction calculated?
Every labeled MDIA 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 178 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. 35% of MDIA'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 2026-08-31.
Does MDIA'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.