AllianceBernstein Holding L.P. Units (AB)
How AB actually reacts to news — the realized, point-in-time move the market made, measured across 286 labeled events over the last three years with zero look-ahead.
AB’s median reaction, across the day.
Half of all AllianceBernstein Holding L.P. Units news events land between -0.33% and +0.85% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when AB moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to AB’s baseline. Nothing else.
Get “How AB reacts to news” as a PDF.
A free one-page summary: AB’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent AB events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| AB Announces July 31, 2026 Assets Under Management | Press release | PR Newswire | +0.36% | +0.25% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +0.36% | +0.25% | |
| Form 10-Q ALLIANCEBERNSTEIN HOLDIN For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.30% | +2.18% | |
| CAIS Welcomes New Strategic Investors, Valuing the Company at Over $2 Billion | Press release | Business Wire | -0.07% | -0.78% | |
| ALLIANCEBERNSTEIN HOLDING L.P. ANNOUNCES SECOND QUARTER RESULTS | Press release | PR Newswire | +0.28% | -0.53% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | +0.28% | -0.53% | |
| AB Announces June 30, 2026 Assets Under Management | Press release | PR Newswire | +0.38% | +0.97% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Jul 13 | SEC filing · Form 8-K | SEC EDGAR | +0.38% | +0.97% | |
| AB to Report Second Quarter 2026 Results on July 28, 2026 | Press release | PR Newswire | -0.05% | -0.43% | |
| Bernstein Private Wealth Management Study Reveals Ultra-Wealthy Families' Focus on Internal Resilience amid Global and Economic Uncertainty | Press release | PR Newswire | +0.08% | -1.22% | |
| AB Announces May 31, 2026 Assets Under Management | Press release | PR Newswire | +0.06% | -1.75% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Jun 10 | SEC filing · Form 8-K | SEC EDGAR | +0.06% | -1.75% | |
| AllianceBernstein, Brookfield, and Carlyle Unveil Turnkey Private-Markets Solution for Defined Contribution Plans | Press release | PR Newswire | -0.18% | +1.47% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: May 11 | SEC filing · Form 8-K | SEC EDGAR | -0.62% | -0.08% | |
| AB Announces April 30, 2026 Assets Under Management | Press release | PR Newswire | -0.62% | -0.08% | |
| Form 10-Q ALLIANCEBERNSTEIN HOLDIN For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.15% | |
| ALLIANCEBERNSTEIN HOLDING L.P. ANNOUNCES FIRST QUARTER RESULTS | Press release | PR Newswire | +0.34% | +1.13% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | +0.34% | +1.13% | |
| AB Announces March 31, 2026 Assets Under Management | Press release | PR Newswire | -0.07% | +0.70% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Apr 13 | SEC filing · Form 8-K | SEC EDGAR | -0.07% | +0.70% | |
| AB to Report First Quarter 2026 Results on April 28, 2026 | Press release | PR Newswire | +0.26% | -1.18% | |
| Bernstein Private Wealth Management Appoints Kim Mustin to Lead Fast-Growing Business Owner Segment | Press release | PR Newswire | +0.00% | +1.46% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Mar 11 | SEC filing · Form 8-K | SEC EDGAR | -0.96% | -4.48% | |
| AB Announces February 28, 2026 Assets Under Management | Press release | PR Newswire | -0.96% | -4.48% | |
| AllianceBernstein selects SimCorp One technology platform for investment teams | Press release | PR Newswire | -0.45% | -0.19% | |
| Form 10-K ALLIANCEBERNSTEIN HOLDIN For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.40% | +1.26% | |
| AB Announces January 31, 2026 Assets Under Management | Press release | PR Newswire | +0.00% | +0.55% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.55% | |
| ALLIANCEBERNSTEIN HOLDING L.P. ANNOUNCES FOURTH QUARTER RESULTS | Press release | PR Newswire | +1.13% | +0.00% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Feb 05 | SEC filing · Form 8-K | SEC EDGAR | +1.13% | +0.00% | |
| AB Announces December 31, 2025 Assets Under Management | Press release | PR Newswire | +0.21% | -0.99% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Jan 12 | SEC filing · Form 8-K | SEC EDGAR | +0.21% | -0.99% | |
| AB to Report Fourth Quarter 2025 Results on February 5, 2026 | Press release | PR Newswire | +0.18% | -0.47% | |
| AllianceBernstein announces Onur Erzan as President | Press release | PR Newswire | +0.60% | +2.08% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Jan 05 | SEC filing · Form 8-K | SEC EDGAR | +0.60% | +2.08% | |
| AllianceBernstein Launches AB US Equity ETF (XCHG) on the New York Stock Exchange | Press release | PR Newswire | +0.36% | -0.17% | |
| AB Announces November 30, 2025 Assets Under Management | Press release | PR Newswire | -0.13% | -1.05% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Dec 10 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | -1.05% | |
| Seth Bernstein, President and CEO, to Participate in the Goldman Sachs 2025 US Financial Services Conference on December 9th, 2025 | Press release | PR Newswire | — | +0.38% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Nov 11 | SEC filing · Form 8-K | SEC EDGAR | -0.35% | -0.35% | |
| AB Announces October 31, 2025 Assets Under Management | Press release | PR Newswire | -0.35% | -0.35% | |
| AllianceBernstein Enhances ETF Offerings with Two New Fixed Income Conversions | Press release | PR Newswire | -0.04% | +0.36% | |
| ALLIANCEBERNSTEIN HOLDING L.P. ANNOUNCES THIRD QUARTER RESULTS | Press release | PR Newswire | +0.56% | +0.77% | |
| Form 10-Q ALLIANCEBERNSTEIN HOLDIN For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.56% | +0.77% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | +0.56% | +0.77% | |
| AB Announces Strategic Partnership Focused on the Asian Insurance Market | Press release | PR Newswire | +0.31% | +2.32% | |
| AllianceBernstein Expands Lifetime Income Platform with Fixed Annuity Version of Secure Income Portfolio | Press release | PR Newswire | -0.10% | -0.05% | |
| AB Announces September 30, 2025 Assets Under Management | Press release | PR Newswire | +0.50% | +0.08% | |
| Bernstein Private Wealth Management Unveils New Pooled Employer Plan | Press release | PR Newswire | +0.03% | -1.37% | |
| Form 8-K ALLIANCEBERNSTEIN HOLDIN For: Oct 09 | SEC filing · Form 8-K | SEC EDGAR | +0.50% | +0.08% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AB section they belong to.
More of the dataset.
AB earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is AllianceBernstein Holding L.P. Units's median reaction calculated?
Every labeled AB 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 286 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. 61% of AB'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 2026-08-13.
Does AB'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.