Grid Dynamics Holdings, Inc. - Class A (GDYN)
GDYN moved a median of +0.19% 30 minutes after news, and +0.08% by the close. How GDYN actually reacts to news — the realized, point-in-time move the market made, measured across 464 labeled events over the last three years with zero look-ahead.
GDYN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 48% | 464 |
| 30-min | +0.19% | 54% | 464 |
| 60-min | +0.27% | 57% | 464 |
| to close | +0.08% | 50% | 464 |
| Middle 50% of GDYN reactions | -0.82% to +1.21% |
|---|---|
| Median reaction (30-min) | +0.19% |
| Measured reactions | 464 |
Half of all Grid Dynamics Holdings, Inc. - Class A news events land between -0.82% and +1.21% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How GDYN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Rating reiterations | 48 | +0.23% | 56% | +0.12% |
| Price-target raises | 15 | -0.07% | 47% | -0.46% |
| Price-target cuts | 11 | +0.47% | 73% | +1.91% |
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. 3 further classes were observed with fewer than 10 measured events and are not published. See how GDYN ranks against every other measured name →
That’s how GDYN usually reacts — get an email when it moves on news →Email me when GDYN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GDYN's baseline. Nothing else.
Recent GDYN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Sysco Awards Partner of the Year Award to Grid Dynamics | Press release | Business Wire | +2.49% | +5.12% | |
| Grid Dynamics to Announce Third Quarter 2026 Financial Results on October 29th | Press release | Business Wire | +0.00% | +2.07% | |
| Grid Dynamics Co-Hosts Physical AI Summit Alongside NVIDIA, EAIGG, and BGV to Accelerate Manufacturing Automation | Press release | Business Wire | +0.26% | +0.00% | |
| Grid Dynamics Appoints Industry Veteran Nikita Ivanov as Head of AI | Press release | Business Wire | +1.16% | +1.81% | |
| Grid Dynamics Earns MACH Alliance's 2026 Agent Ready Award for Production-Scale Agentic AI | Press release | Business Wire | +0.63% | -0.25% | |
| Form EFFECT GRID DYNAMICS HOLDINGS, | SEC filing · Form EFFECT | SEC EDGAR | +0.76% | +4.55% | |
| Form 10-Q GRID DYNAMICS HOLDINGS, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.68% | +0.44% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | +1.68% | +0.44% | |
| Form POS AM GRID DYNAMICS HOLDINGS, | SEC filing · Form POS | SEC EDGAR | +1.68% | +0.44% | |
| Grid Dynamics Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +1.68% | +0.44% | |
| Grid Dynamics Accelerates Enterprise AI-Native Transformation With Workforce Certification and GAIN Platforms Rollout | Press release | Business Wire | +0.66% | +11.84% | |
| Grid Dynamics Enters Strategic Partnership with Doosan Robotics to Accelerate Physical AI Adoption Across Manufacturing and Logistics | Press release | Business Wire | +3.89% | +2.48% | |
| Grid Dynamics to Announce Second Quarter 2026 Financial Results on July 30th | Press release | Business Wire | +1.25% | -3.18% | |
| Grid Dynamics Hosted XT26, Convening Capital Markets Technology Leaders on the Volatility of AI in Financial Services | Press release | Business Wire | +1.20% | +0.00% | |
| Form RW GRID DYNAMICS HOLDINGS, | SEC filing · Form RW | SEC EDGAR | -1.22% | +5.74% | |
| Grid Dynamics Launches AI-Native Modernization on Azure, Targeting Larger Enterprise Deals | Press release | Business Wire | -3.57% | +10.39% | |
| Form EFFECT GRID DYNAMICS HOLDINGS, | SEC filing · Form EFFECT | SEC EDGAR | +1.16% | -1.46% | |
| Form 10-K/A GRID DYNAMICS HOLDINGS, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -4.50% | -3.17% | |
| Form 10-Q GRID DYNAMICS HOLDINGS, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -4.50% | -3.17% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -4.50% | -3.17% | |
| Form POS AM GRID DYNAMICS HOLDINGS, | SEC filing · Form POS | SEC EDGAR | -4.50% | -3.17% | |
| Grid Dynamics Reports First Quarter 2026 Financial Results | Press release | Business Wire | -4.50% | -3.17% | |
| Grid Dynamics Scales Hyper-Personalization for Galeries Lafayette; Drives 7% Revenue Increase via AI-Powered Search and Merchandising | Press release | Business Wire | +0.25% | -0.67% | |
| Grid Dynamics to Announce First Quarter 2026 Financial Results on April 30th | Press release | Business Wire | -0.52% | -1.39% | |
| Form 10-K GRID DYNAMICS HOLDINGS, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +4.54% | +2.23% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | +4.54% | +2.23% | |
| Form S-8 GRID DYNAMICS HOLDINGS, | SEC filing · Form S-8 | SEC EDGAR | +4.54% | +2.23% | |
| Grid Dynamics Reports Fourth Quarter and Full Year 2025 Financial Results | Press release | Business Wire | +4.54% | +2.23% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +2.28% | +3.64% | |
| Unveiling NVIDIA Solution Center: Grid Dynamics’ Family of AI Solutions to Cut Costs for Retail and Manufacturing | Press release | Business Wire | +0.65% | -1.73% | |
| Grid Dynamics Accelerates AI Transformation Momentum | Press release | Business Wire | +0.00% | +0.46% | |
| Grid Dynamics to Announce Fourth Quarter and Full Year 2025 Financial Results on March 5th | Press release | Business Wire | +1.18% | -1.94% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Dec 23 | SEC filing · Form 8-K | SEC EDGAR | -0.49% | +0.98% | |
| Form DEFA14A GRID DYNAMICS HOLDINGS, | SEC filing · Form DEFA14A | SEC EDGAR | -2.54% | -3.42% | |
| Form DEFA14A GRID DYNAMICS HOLDINGS, | SEC filing · Form DEFA14A | SEC EDGAR | -0.21% | -0.21% | |
| Grid Dynamics Signs Strategic Collaboration Agreement with AWS to Advance Data Foundations for Generative AI | Press release | Business Wire | +0.41% | +0.10% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | +0.40% | -1.83% | |
| Form ARS GRID DYNAMICS HOLDINGS, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -2.01% | |
| Form DEF 14A GRID DYNAMICS HOLDINGS, For: Dec 23 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -2.01% | |
| Form DEFA14A GRID DYNAMICS HOLDINGS, | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -2.01% | |
| Form 10-Q GRID DYNAMICS HOLDINGS, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +4.41% | +17.78% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | +4.41% | +17.78% | |
| Grid Dynamics Reports Third Quarter 2025 Financial Results | Press release | Business Wire | +4.41% | +17.78% | |
| Grid Dynamics to Announce Third Quarter 2025 Financial Results on October 30 | Press release | Business Wire | +1.62% | +2.22% | |
| Grid Dynamics and Temporal Technologies Announce New Agentic AI Platform to Drive Enterprise Innovation | Press release | Business Wire | +0.50% | +2.63% | |
| Form 10-Q GRID DYNAMICS HOLDINGS, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.57% | -8.01% | |
| Form 8-K GRID DYNAMICS HOLDINGS, For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | +1.57% | -8.01% | |
| Grid Dynamics Reports Second Quarter 2025 Financial Results | Press release | Business Wire | +1.57% | -8.01% | |
| Grid Dynamics Helps SmartRay Create an AI Robotic Inspection Platform in Collaboration with Wandelbots | Press release | Business Wire | +0.27% | -3.25% | |
| Grid Dynamics to Announce Second Quarter 2025 Financial Results on July 31st | Press release | Business Wire | +0.63% | +3.94% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GDYN section they belong to.
Where else GDYN is measured.
GDYN earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Grid Dynamics Holdings, Inc. - Class A's median reaction calculated?
Every labeled GDYN 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 464 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. 54% of GDYN'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 GDYN'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.