MEDIFAST INC (MED)
MED moved a median of -0.15% 30 minutes after news, and -0.30% by the close. How MED actually reacts to news — the realized, point-in-time move the market made, measured across 268 labeled events over the last three years with zero look-ahead.
MED’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.00% | 41% | 263 |
| 30-min | -0.15% | 41% | 268 |
| 60-min | -0.07% | 49% | 268 |
| to close | -0.30% | 45% | 267 |
| Middle 50% of MED reactions | -0.95% to +0.91% |
|---|---|
| Median reaction (30-min) | -0.15% |
| Measured reactions | 268 |
Half of all MEDIFAST INC news events land between -0.95% and +0.91% 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 MED moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MED's baseline. Nothing else.
Recent MED events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Medifast to Announce Financial Results for the Third Quarter Ended September 30, 2026 | Press release | Business Wire | +1.85% | +1.26% | |
| Medifast® Announces the Launch of the Medifast Metabolic Health Institute™ | Press release | Business Wire | +1.06% | -0.98% | |
| Form 10-Q MEDIFAST INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +4.85% | +7.48% | |
| Form 8-K MEDIFAST INC For: Aug 03 | SEC filing · Form 8-K | SEC EDGAR | +4.85% | +7.48% | |
| Form S-8 MEDIFAST INC | SEC filing · Form S-8 | SEC EDGAR | +4.85% | +7.48% | |
| Medifast Announces Second Quarter 2026 Financial Results | Press release | Business Wire | +4.85% | +7.48% | |
| Medifast to Announce Financial Results for the Second Quarter Ended June 30, 2026 | Press release | Business Wire | +0.34% | +2.23% | |
| Form 8-K MEDIFAST INC For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.29% | |
| Medifast® Enters a New Era: Introducing Trilivy™, a Science-Backed Metabolic Health System | Press release | Business Wire | +0.00% | -2.29% | |
| Form 8-K MEDIFAST INC For: May 29 | SEC filing · Form 8-K | SEC EDGAR | +1.39% | +3.59% | |
| Form 8-K MEDIFAST INC For: May 19 | SEC filing · Form 8-K | SEC EDGAR | +1.25% | -0.63% | |
| Medifast Confirms Appointment of Nicholas Johnson as Chief Executive Officer | Press release | Business Wire | +1.25% | -0.63% | |
| Form 10-Q MEDIFAST INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +2.74% | +18.90% | |
| Form 8-K MEDIFAST INC For: May 04 | SEC filing · Form 8-K | SEC EDGAR | +2.74% | +18.90% | |
| Medifast Announces First Quarter 2026 Financial Results | Press release | Business Wire | +2.74% | +18.90% | |
| Form DEFA14A MEDIFAST INC | SEC filing · Form DEFA14A | SEC EDGAR | — | -0.05% | |
| Medifast to Announce Financial Results for the First Quarter Ended March 31, 2026 | Press release | Business Wire | +0.00% | +1.66% | |
| Form ARS MEDIFAST INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.58% | -1.64% | |
| Form DEF 14A MEDIFAST INC For: May 19 | SEC filing · Form DEF | SEC EDGAR | -0.58% | -1.64% | |
| Form DEFA14A MEDIFAST INC | SEC filing · Form DEFA14A | SEC EDGAR | -0.58% | -1.64% | |
| Form 8-K MEDIFAST INC For: Mar 19 | SEC filing · Form 8-K | SEC EDGAR | -0.73% | -1.96% | |
| Scientific Evidence Demonstrates OPTAVIA®’s Metabolic Health Benefits, Opening the Door to Qualified HSA/FSA Clients | Press release | Business Wire | -0.30% | -0.09% | |
| Form 10-K MEDIFAST INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.95% | +2.00% | |
| Form 8-K MEDIFAST INC For: Feb 17 | SEC filing · Form 8-K | SEC EDGAR | -0.95% | +2.00% | |
| Medifast Announces Fourth Quarter and Full Year 2025 Financial Results | Press release | Business Wire | -0.95% | +2.00% | |
| Medifast to Announce Financial Results for the Fourth Quarter and Full Year Ended December 31, 2025 | Press release | Business Wire | +0.00% | -0.18% | |
| People Magazine Spotlights Tiffany Howard’s Metabolic Health Journey with OPTAVIA® | Press release | Business Wire | -0.25% | +0.25% | |
| OPTAVIA® Premieres Second Docuseries Episode “Health by Design: Spain” Exploring Metabolic Health and Longevity | Press release | Business Wire | -0.59% | +0.00% | |
| Form 8-K MEDIFAST INC For: Dec 30 | SEC filing · Form 8-K | SEC EDGAR | +0.49% | +7.46% | |
| Medifast Announces Planned Leadership Transition | Press release | Business Wire | +0.49% | +7.46% | |
| OPTAVIA Survey Reveals 80% of Americans Lack Understanding of Metabolic Health Despite Its Major Impact to Overall Health and Wellbeing | Press release | Business Wire | +0.53% | -1.05% | |
| Form 10-Q MEDIFAST INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.26% | +4.45% | |
| Form 8-K MEDIFAST INC For: Nov 03 | SEC filing · Form 8-K | SEC EDGAR | +0.26% | +4.45% | |
| Medifast Announces Third Quarter 2025 Financial Results | Press release | Business Wire | +0.26% | +4.45% | |
| Medifast Announces Strategic Shift to Metabolic Health with the Introduction of Metabolic Synchronization™ | Press release | Business Wire | +0.00% | +1.60% | |
| Medifast to Announce Financial Results for the Third Quarter Ended September 30, 2025 | Press release | Business Wire | +1.03% | +0.55% | |
| Evidence Links 5 & 1 Plan® to Improved Metabolic Health Outcomes | Press release | Business Wire | -0.21% | +1.14% | |
| Form 10-Q MEDIFAST INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.70% | -3.26% | |
| Form 8-K MEDIFAST INC For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | +2.70% | -3.26% | |
| Form S-8 MEDIFAST INC | SEC filing · Form S-8 | SEC EDGAR | +2.70% | -3.26% | |
| Medifast Announces Second Quarter 2025 Financial Results | Press release | Business Wire | +2.70% | -3.26% | |
| Medifast to Announce Financial Results for the Second Quarter Ended June 30, 2025 | Press release | Business Wire | +0.00% | +3.80% | |
| Form 8-K MEDIFAST INC For: Jun 18 | SEC filing · Form 8-K | SEC EDGAR | -0.50% | -5.13% | |
| Form ARS MEDIFAST INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | +0.00% | |
| Form DEF 14A MEDIFAST INC For: Jun 18 | SEC filing · Form DEF | SEC EDGAR | +2.32% | +5.12% | |
| Form DEFA14A MEDIFAST INC | SEC filing · Form DEFA14A | SEC EDGAR | +2.32% | +5.12% | |
| Form 10-Q MEDIFAST INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.66% | +3.91% | |
| Form 8-K MEDIFAST INC For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | -1.66% | +3.91% | |
| Medifast Announces First Quarter 2025 Financial Results | Press release | Business Wire | -1.66% | +3.91% | |
| Medifast to Announce Financial Results for the First Quarter Ended March 31, 2025 | Press release | Business Wire | -0.94% | -3.51% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MED section they belong to.
Where else MED is measured.
MED earnings → · Analyst actions → · SEC filings →
Other Consumer Cyclical names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Saga Communications, Inc. - Class A (SGA) | 269 | 0.00% | 34% |
| Core Molding Technologies Inc (CMT) | 268 | 0.00% | 47% |
| Cars.com Inc. (CARS) | 267 | 0.00% | 49% |
| Columbia Sportswear Company (COLM) | 267 | +0.32% | 62% |
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 Consumer Cyclical names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is MEDIFAST INC's median reaction calculated?
Every labeled MED 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 268 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. 41% of MED'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 MED'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.