CarMax Inc (KMX)
KMX moved a median of +0.17% 30 minutes after news, and +0.08% by the close. How KMX actually reacts to news — the realized, point-in-time move the market made, measured across 1,540 labeled events over the last three years with zero look-ahead.
KMX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.08% | 45% | 1,534 |
| 30-min | +0.17% | 56% | 1,534 |
| 60-min | +0.13% | 53% | 1,534 |
| to close | +0.08% | 53% | 1,513 |
| Middle 50% of KMX reactions | -0.54% to +0.88% |
|---|---|
| Median reaction (30-min) | +0.17% |
| Measured reactions | 1,540 |
Half of all CarMax Inc news events land between -0.54% and +0.88% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How KMX reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 37 | +0.23% | 62% | +0.09% |
| Analyst downgrades | 34 | +0.10% | 50% | -0.79% |
| Coverage initiations | 18 | +0.60% | 78% | +1.89% |
| Rating reiterations | 177 | +0.06% | 55% | -0.01% |
| Price-target raises | 38 | +0.02% | 53% | -0.13% |
| Price-target cuts | 40 | +0.22% | 55% | +0.57% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. See how KMX ranks against every other measured name →
That’s how KMX usually reacts — get an email when it moves on news →Email me when KMX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to KMX's baseline. Nothing else.
Recent KMX events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.04% | +1.45% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against CarMax, Inc. (KMX) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.46% | -2.69% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.49% | +0.47% | |
| CarMax to Host Strategic Update Webcast on November 3, 2026 | Press release | Business Wire | +0.98% | +1.12% | |
| Form 10-Q CARMAX INC For: Aug 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.03% | -3.04% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.02% | +0.63% | |
| CarMax Announces Leadership Appointments to Further Unify End-to-End Customer Experience, Advance Strategy for Growth | Press release | Business Wire | -2.55% | -4.94% | |
| CarMax Reports Second Quarter Fiscal 2027 Results | Press release | Business Wire | -2.55% | -4.94% | |
| Form 8-K CARMAX INC For: Sep 29 | SEC filing · Form 8-K | SEC EDGAR | -2.55% | -4.94% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against CarMax, Inc. (KMX) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.33% | +1.14% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.37% | +0.49% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.26% | -0.96% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.07% | +0.18% | |
| CarMax Announces Second Quarter Conference Call | Press release | Business Wire | +0.12% | +0.03% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.36% | -2.78% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.03% | +0.84% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against CarMax, Inc. (KMX) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.17% | +0.85% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.63% | -1.75% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.16% | -0.06% | |
| Gen Alpha Turns 16: New CarMax Survey Reveals the Next Generation of Drivers Is Ready to Get Behind the Wheel | Press release | GlobeNewswire | -0.30% | +1.79% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | -0.10% | +1.44% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against CarMax, Inc. (KMX) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.00% | -0.64% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against CarMax, Inc. (KMX) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.03% | -1.12% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.17% | -1.60% | |
| CarMax Named one of the 2026 PEOPLE® Companies That Care | Press release | GlobeNewswire | -0.65% | +1.57% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.09% | -0.70% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.24% | -1.20% | |
| CarMax Teams with Sierra to Enhance Inbound Sales Call Experience | Press release | GlobeNewswire | -0.35% | +2.14% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against CarMax, Inc. (KMX) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | +0.09% | -1.73% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.89% | +0.93% | |
| Form 8-K CARMAX INC For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +0.89% | +0.93% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.24% | +1.07% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against CarMax, Inc. (KMX) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.03% | +0.64% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +1.71% | -1.08% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -1.72% | -3.62% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | -0.71% | -3.37% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against CarMax, Inc. (KMX) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.21% | +2.54% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +1.53% | +0.90% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.39% | -0.33% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.20% | +0.95% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages CarMax, Inc. (KMX) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.37% | +1.13% | |
| CarMax Recognized as One of the 50 Most Community-Minded Companies in the US | Press release | GlobeNewswire | -0.10% | +0.17% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against CarMax, Inc. (KMX) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | +0.22% | -0.83% | |
| Form 10-Q CARMAX INC For: May 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.09% | -3.27% | |
| Form 8-K CARMAX INC For: Jun 23 | SEC filing · Form 8-K | SEC EDGAR | +1.16% | +0.76% | |
| Form S-8 CARMAX INC | SEC filing · Form S-8 | SEC EDGAR | +1.16% | +0.76% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating CarMax, Inc. (KMX) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.27% | -1.22% | |
| CarMax, Inc. (KMX) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.40% | +0.42% | |
| CarMax Reports First Quarter Fiscal 2027 Results | Press release | Business Wire | -2.54% | -3.54% | |
| Form 8-K CARMAX INC For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | -2.54% | -3.54% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the KMX section they belong to.
Where else KMX is measured.
KMX earnings → · Analyst actions → · SEC filings →
Other Consumer Cyclical names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Meredith Corporation (MDP) | 1,714 | +0.01% | 50% |
| Scientific Games Corp (SGMS) | 1,690 | 0.00% | 49% |
| Cinedigm Corp - Class A (CIDM) | 1,466 | 0.00% | 45% |
| Fortune Brands Home & Security, Inc. (FBHS) | 1,457 | +0.02% | 50% |
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 CarMax Inc's median reaction calculated?
Every labeled KMX 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 1,540 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. 56% of KMX'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 KMX'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.