Alphatec Holdings, Inc. (ATEC)
ATEC moved a median of -0.18% 30 minutes after news, and -0.07% by the close. How ATEC actually reacts to news — the realized, point-in-time move the market made, measured across 409 labeled events over the last three years with zero look-ahead.
ATEC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 47% | 409 |
| 30-min | -0.18% | 45% | 409 |
| 60-min | -0.04% | 45% | 409 |
| to close | -0.07% | 48% | 408 |
| Middle 50% of ATEC reactions | -1.25% to +1.28% |
|---|---|
| Median reaction (30-min) | -0.18% |
| Measured reactions | 409 |
Half of all Alphatec Holdings, Inc. news events land between -1.25% and +1.28% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ATEC reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Coverage initiations | 26 | -0.01% | 35% | -0.39% |
| Rating reiterations | 90 | -0.22% | 44% | -0.04% |
| Price-target raises | 12 | +0.12% | 58% | -0.99% |
| Price-target cuts | 17 | +0.13% | 59% | -1.27% |
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. 2 further classes were observed with fewer than 10 measured events and are not published. See how ATEC ranks against every other measured name →
That’s how ATEC usually reacts — get an email when it moves on news →Email me when ATEC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ATEC's baseline. Nothing else.
Recent ATEC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| ATEC Appoints Tommy Carls Executive Vice President, Data Intelligence and Strategy | Press release | Business Wire | +0.42% | -0.30% | |
| ATEC Reports Second Quarter Financial Results | Press release | Business Wire | -3.09% | -3.04% | |
| Form 10-Q Alphatec Holdings, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -3.09% | -3.04% | |
| Form 8-K Alphatec Holdings, Inc. For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | -3.09% | -3.04% | |
| Form S-8 Alphatec Holdings, Inc. | SEC filing · Form S-8 | SEC EDGAR | -3.09% | -3.04% | |
| ATEC Announces Participation in Upcoming Investor Conferences | Press release | Business Wire | +3.35% | +2.42% | |
| ATEC to Report Second Quarter 2026 Financial Results on August 4, 2026 | Press release | Business Wire | +3.60% | +1.09% | |
| Form 8-K Alphatec Holdings, Inc. For: Jun 10 | SEC filing · Form 8-K | SEC EDGAR | +0.12% | +2.86% | |
| Form S-8 Alphatec Holdings, Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.12% | +2.86% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Bronstein, Gewirtz & Grossman, LLC (ATEC) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.13% | +3.02% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Alphatec Holdings, Inc. (ATEC) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | +0.14% | +1.15% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Alphatec Holdings, Inc. (ATEC) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.52% | -3.05% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Alphatec Holdings, Inc. (ATEC) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -1.21% | -4.47% | |
| Form SD Alphatec Holdings, Inc. | SEC filing · Form SD | SEC EDGAR | -0.38% | -1.65% | |
| Alphatec Holdings, Inc. (ATEC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.13% | -2.19% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Alphatec Holdings, Inc. (ATEC) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.60% | -2.66% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Alphatec Holdings, Inc. (ATEC) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.00% | +0.67% | |
| Alphatec Holdings, Inc. (ATEC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.36% | -0.54% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Alphatec Holdings, Inc. (ATEC) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.00% | +0.18% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Alphatec Holdings, Inc. (ATEC) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.00% | +0.24% | |
| ATEC Refinances Existing Debt with Inaugural Bank Facility | Press release | Business Wire | -10.43% | -11.63% | |
| ATEC Reports First Quarter Financial Results | Press release | Business Wire | -10.43% | -11.63% | |
| Form 10-Q Alphatec Holdings, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -10.43% | -11.63% | |
| Form 8-K Alphatec Holdings, Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -10.43% | -11.63% | |
| Form ARS Alphatec Holdings, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +2.38% | +5.51% | |
| Form DEF 14A Alphatec Holdings, Inc. For: Jun 10 | SEC filing · Form DEF | SEC EDGAR | +2.38% | +5.51% | |
| Form DEFA14A Alphatec Holdings, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +2.38% | +5.51% | |
| ATEC to Report First Quarter 2026 Financial Results on May 5, 2026 | Press release | Business Wire | -0.05% | -3.68% | |
| Form 8-K Alphatec Holdings, Inc. For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | +0.23% | +1.25% | |
| ATEC Reports Fourth Quarter and Full-Year 2025 Financial Results | Press release | Business Wire | +1.85% | +5.96% | |
| Form 10-K Alphatec Holdings, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.85% | +5.96% | |
| Form 8-K Alphatec Holdings, Inc. For: Feb 24 | SEC filing · Form 8-K | SEC EDGAR | +1.85% | +5.96% | |
| ATEC and Theradaptive Enter Strategic Partnership for Breakthrough Regenerative Technology in Spinal Fusion | Press release | PR Newswire | -11.21% | -16.44% | |
| ATEC Announces Select Preliminary Financial Results for 2025 and Provides 2026 Outlook | Press release | Business Wire | -12.97% | -18.07% | |
| Form 8-K Alphatec Holdings, Inc. For: Jan 12 | SEC filing · Form 8-K | SEC EDGAR | -12.97% | -18.07% | |
| ATEC Mourns Passing of Board Member Jeffrey P. Rydin | Press release | Business Wire | +0.31% | +0.92% | |
| Form 8-K Alphatec Holdings, Inc. For: Nov 03 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | +0.92% | |
| ATEC Reports Third Quarter 2025 Financial Results And Raises Full-Year Guidance | Press release | Business Wire | -2.01% | -4.57% | |
| Form 10-Q Alphatec Holdings, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.01% | -4.57% | |
| Form 8-K Alphatec Holdings, Inc. For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | -2.01% | -4.57% | |
| ATEC to Report Third Quarter 2025 Financial Results on October 30, 2025 | Press release | Business Wire | -0.24% | +4.42% | |
| ATEC to Participate in Upcoming Conferences | Press release | Business Wire | +0.13% | -0.07% | |
| ATEC Reports Second Quarter 2025 Financial Results and Raises Full-Year Guidance | Press release | Business Wire | +4.50% | +14.75% | |
| Form 10-Q Alphatec Holdings, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +4.50% | +14.75% | |
| Form 8-K Alphatec Holdings, Inc. For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | +4.50% | +14.75% | |
| ATEC to Report Second Quarter 2025 Financial Results on July 31, 2025 | Press release | Business Wire | +0.19% | +0.57% | |
| Form 8-K Alphatec Holdings, Inc. For: Jun 11 | SEC filing · Form 8-K | SEC EDGAR | -1.25% | -1.87% | |
| Form S-8 Alphatec Holdings, Inc. | SEC filing · Form S-8 | SEC EDGAR | -1.25% | -1.87% | |
| Form SD Alphatec Holdings, Inc. | SEC filing · Form SD | SEC EDGAR | -1.83% | -0.64% | |
| Form DEFA14A Alphatec Holdings, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -2.53% | -3.40% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ATEC section they belong to.
Where else ATEC is measured.
ATEC earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Bausch Health Companies Inc. (BHC) | 412 | +0.06% | 50% |
| Verastem, Inc. (VSTM) | 411 | -0.09% | 48% |
| Align Technology, Inc. (ALGN) | 407 | -0.00% | 50% |
| ALLIQUA BIOMEDICAL (ALQA) | 407 | -0.11% | 43% |
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 Healthcare names, measured the same way →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Alphatec Holdings, Inc.'s median reaction calculated?
Every labeled ATEC 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 409 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. 45% of ATEC'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 ATEC'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.