AssetMark Financial Holdings, Inc. (AMK)
AMK moved a median of 0.00% 30 minutes after news, and -0.09% by the close. How AMK actually reacts to news — the realized, point-in-time move the market made, measured across 123 labeled events over the last three years with zero look-ahead.
AMK’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 35% | 108 |
| 30-min | 0.00% | 41% | 111 |
| 60-min | -0.03% | 41% | 111 |
| to close | -0.09% | 40% | 111 |
| Middle 50% of AMK reactions | -0.15% to +0.12% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 123 |
Half of all AssetMark Financial Holdings, Inc. news events land between -0.15% and +0.12% 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 AMK moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to AMK's baseline. Nothing else.
Recent AMK events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| AssetMark Named Winner of the ThinkAdvisor 2024 Luminaries Award for Innovation for Its Tax Management Services | Press release | GlobeNewswire | — | — | |
| AssetMark Appoints Erin Wood as Senior Vice President of Advanced Planning | Press release | GlobeNewswire | — | — | |
| AssetMark Completes Acquisition of Key TAMP Business Assets in Strategic Alliance with Morningstar Wealth | Press release | GlobeNewswire | — | — | |
| AssetMark Adds TIFIN AI Capabilities to Enhance and Scale its Industry-Leading Wealth Management Platform | Press release | GlobeNewswire | — | — | |
| AssetMark and Cheetah Deliver a Unified Wealth Management Solution, Driving Growth and Efficiency for Financial Institutions | Press release | GlobeNewswire | — | — | |
| AssetMark Launches Morningstar Wealth Investment Strategies for Financial Advisors | Press release | GlobeNewswire | — | — | |
| AssetMark Completes Acquisition by GTCR, Launching New Era of Strategic Growth and Expansion | Press release | GlobeNewswire | — | — | |
| Form 8-K AssetMark Financial Hold For: Sep 05 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form POS AM AssetMark Financial Hold | SEC filing · Form POS | SEC EDGAR | — | — | |
| Form S-8 POS AssetMark Financial Hold | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 13F-NT AssetMark Financial Hold For: Jun 30 | SEC filing · Form 13F-NT | SEC EDGAR | -0.01% | +0.24% | |
| AssetMark Enhances Advisor Offerings with Expanded Cash Solutions Suite | Press release | GlobeNewswire | +0.00% | +0.29% | |
| July AMK Report | Press release | GlobeNewswire | +0.00% | +0.29% | |
| Form 10-Q AssetMark Financial Hold For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.12% | +0.14% | |
| AssetMark Reports $119.4B Platform Assets for Second Quarter 2024 | Press release | GlobeNewswire | -0.52% | -0.23% | |
| Form 8-K AssetMark Financial Hold For: Jul 18 | SEC filing · Form 8-K | SEC EDGAR | -0.52% | -0.23% | |
| June AMK Report | Press release | GlobeNewswire | -0.03% | -0.29% | |
| AssetMark to Enter Strategic Alliance with Morningstar Wealth, Acquire Assets from TAMP Business | Press release | GlobeNewswire | -0.04% | -0.20% | |
| Form 8-K AssetMark Financial Hold For: Jun 20 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | -0.20% | |
| May AMK Report | Press release | GlobeNewswire | +0.00% | -0.41% | |
| AssetMark Announces 2024 Practice Excellence Award Recipients | Press release | GlobeNewswire | +0.03% | +0.00% | |
| Form DEFM14C AssetMark Financial Hold | SEC filing · Form DEFM14C | SEC EDGAR | -0.03% | -0.81% | |
| Form PREM14C AssetMark Financial Hold For: May 23 | SEC filing · Form PREM14C | SEC EDGAR | +0.03% | +0.15% | |
| AMK Alert: Monsey Firm of Wohl & Fruchter Investigating Fairness of the Sale of AssetMark Financial to GTCR | Press release | GlobeNewswire | — | +0.00% | |
| Form 8-K AssetMark Financial Hold For: May 20 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | -0.26% | |
| April AMK Report | Press release | GlobeNewswire | -0.29% | -0.41% | |
| Form 10-Q AssetMark Financial Hold For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -0.29% | |
| Form 13F-NT AssetMark Financial Hold For: Mar 31 | SEC filing · Form 13F-NT | SEC EDGAR | -0.03% | -0.18% | |
| AssetMark Reports $116.9B Platform Assets for First Quarter 2024 | Press release | GlobeNewswire | -0.04% | -0.12% | |
| Form 8-K AssetMark Financial Hold For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | -0.12% | |
| AssetMark Signs Definitive Agreement to be Acquired by GTCR | Press release | Business Wire | +0.12% | -0.65% | |
| Form 8-K AssetMark Financial Hold For: Apr 25 | SEC filing · Form 8-K | SEC EDGAR | +0.12% | -0.65% | |
| March AMK Report | Press release | GlobeNewswire | -0.50% | +0.52% | |
| Form ARS AssetMark Financial Hold For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.40% | -1.04% | |
| Form DEF 14A AssetMark Financial Hold For: May 20 | SEC filing · Form DEF | SEC EDGAR | +0.40% | -1.04% | |
| Form DEFA14A AssetMark Financial Hold | SEC filing · Form DEFA14A | SEC EDGAR | +0.40% | -1.04% | |
| AssetMark Honors Financial Advisors with Community Inspiration Award | Press release | GlobeNewswire | -0.92% | -1.61% | |
| Form 10-K AssetMark Financial Hold For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.34% | -0.11% | |
| February AMK Report | Press release | GlobeNewswire | -0.17% | -0.11% | |
| AssetMark Launches Advisor Dashboard, First Step in Broader Digital Ecosystem Enhancements | Press release | GlobeNewswire | +0.74% | +2.69% | |
| AssetMark Reports $108.9B Platform Assets for Fourth Quarter 2023 | Press release | GlobeNewswire | -0.25% | +2.81% | |
| Form 8-K AssetMark Financial Hold For: Feb 21 | SEC filing · Form 8-K | SEC EDGAR | -0.25% | +2.81% | |
| January AMK Report | Press release | GlobeNewswire | +0.02% | -1.89% | |
| Form 13F-NT AssetMark Financial Hold For: Dec 31 | SEC filing · Form 13F-NT | SEC EDGAR | — | +0.20% | |
| AssetMark to Announce Fourth Quarter 2023 Results on February 21, 2024 | Press release | GlobeNewswire | -0.03% | +2.15% | |
| AssetMark Launches Tax Management Services to Help Advisors Unlock Tax Efficiencies for Their Clients | Press release | GlobeNewswire | +0.00% | +1.98% | |
| December AMK Report | Press release | GlobeNewswire | +0.00% | +1.42% | |
| November AMK Report | Press release | GlobeNewswire | -0.61% | -1.19% | |
| Form 8-K AssetMark Financial Hold For: Dec 01 | SEC filing · Form 8-K | SEC EDGAR | +0.46% | +0.84% | |
| AssetMark to Attend the Goldman Sachs Financial Services Conference | Press release | GlobeNewswire | +0.23% | -0.43% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AMK section they belong to.
Where else AMK is measured.
AMK earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is AssetMark Financial Holdings, Inc.'s median reaction calculated?
Every labeled AMK 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 123 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 AMK'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 AMK'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.