ADVANTEST CORP SP/ADR (ATEYY)
ATEYY moved a median of +0.04% 30 minutes after news, and +0.61% by the close. How ATEYY actually reacts to news — the realized, point-in-time move the market made, measured across 75 labeled events over the last three years with zero look-ahead.
ATEYY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 43% | 74 |
| 30-min | +0.04% | 52% | 75 |
| 60-min | +0.32% | 60% | 75 |
| to close | +0.61% | 61% | 74 |
| Middle 50% of ATEYY reactions | -0.25% to +1.03% |
|---|---|
| Median reaction (30-min) | +0.04% |
| Measured reactions | 75 |
Half of all ADVANTEST CORP SP/ADR news events land between -0.25% and +1.03% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ATEYY reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 13 | +0.34% | 62% | +0.67% |
| Analyst downgrades | 13 | +0.07% | 62% | +0.76% |
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. 1 further class was observed with fewer than 10 measured events and is not published. See how ATEYY ranks against every other measured name →
That’s how ATEYY usually reacts — get an email when it moves on news →Email me when ATEYY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ATEYY's baseline. Nothing else.
Recent ATEYY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Advantest Announces Call for Papers for VOICE 2027 Developer Conference in San Jose, Calif. | Press release | GlobeNewswire | -0.41% | -3.33% | |
| Advantest Showcases Latest Test Solutions at SEMICON West 2026 | Press release | GlobeNewswire | +1.31% | +1.56% | |
| Advantest to Highlight Latest Test Solutions at International Test Conference 2026 in San Antonio, Texas | Press release | GlobeNewswire | +1.31% | +1.56% | |
| Advantest Extends SiConic® Ecosystem to DFT Engineering, Accelerating Production-Ready Test Development | Press release | GlobeNewswire | -0.39% | -1.81% | |
| Advantest Concludes Successful VOICE 2026 Event | Press release | GlobeNewswire | +0.42% | -0.49% | |
| Advantest Partners with OpenLight to Develop Silicon Photonics Test Solutions for High-Volume Manufacturing | Press release | Business Wire | +0.67% | +2.94% | |
| Advantest to Showcase Design-to-Test Automation Using Velocity™ Software at VOICE 2026 | Press release | GlobeNewswire | -0.12% | -1.28% | |
| Advantest Ranks Global #1 in Assembly Test Equipment Supplier and Top 10 Customer Service Categories in 2026 Customer Satisfaction Survey | Press release | GlobeNewswire | +0.00% | -0.04% | |
| Advantest Introduces Pin Scale 5000B Digital Test Solution to Extend Capabilities of V93000 EXA Scale Test Platform | Press release | GlobeNewswire | -0.19% | +1.89% | |
| Advantest Announces Strategic Partnership with Applied Materials and Joins EPIC Platform | Press release | GlobeNewswire | +0.00% | -2.35% | |
| Advantest Announces Opening of Strategic Innovation Centers | Press release | GlobeNewswire | +0.65% | +1.71% | |
| Advantest Opens Registration for International VOICE 2026 Developer Conference, May 18-20 | Press release | GlobeNewswire | +0.68% | -3.32% | |
| Advantest Corporation Selects Anaqua to Advance its Global IP Management | Press release | GlobeNewswire | +2.43% | +4.87% | |
| Advantest Wins Excellent Performance Award at TSMC’s 2025 Supply Chain Management Forum | Press release | GlobeNewswire | +0.93% | +1.35% | |
| Advantest and Tokyo Seimitsu Announce Joint Development of Die-Level Prober | Press release | GlobeNewswire | +0.06% | +0.62% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Japan 2025 in Tokyo | Press release | GlobeNewswire | +0.29% | -0.90% | |
| Advantest Unveils T2000 AiR2X Air-Cooled SoC and Power Analog Test Solution | Press release | GlobeNewswire | +0.89% | +2.26% | |
| Advantest Introduces Next-Generation M5241 Memory Handler to Support High-Performance AI Memory Devices | Press release | GlobeNewswire | +0.00% | +2.19% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Europa 2025 in Munich, Germany | Press release | GlobeNewswire | +0.37% | — | |
| Advantest Unveils MTe – Unified, Scalable Test Platform for Power Semiconductor Devices | Press release | GlobeNewswire | -0.35% | -1.46% | |
| Advantest Announces Call for Papers for VOICE 2026 Developer Conference in Scottsdale, Ariz. | Press release | GlobeNewswire | -0.08% | +1.02% | |
| Advantest Pioneers a New Era of AI-Powered Semiconductor Testing | Press release | GlobeNewswire | +0.62% | +0.60% | |
| Advantest to Showcase Latest Test Solutions at SEMICON West 2025 in Phoenix, Ariz. | Press release | GlobeNewswire | +0.62% | +0.60% | |
| Advantest Launches Power Optimization Solution to Enhance Energy Efficiency and Sustainability in Semiconductor Testing | Press release | GlobeNewswire | +0.00% | +2.49% | |
| Advantest to Highlight Latest Test Solutions at International Test Conference 2025 in San Diego, Calif. | Press release | GlobeNewswire | +2.33% | +3.35% | |
| Advantest Expands 7038 System-Level Test Platform with Right-Sized Single Test Rack Solution for High-Volume Manufacturing | Press release | GlobeNewswire | +0.44% | +0.15% | |
| Advantest Introduces Advanced Mask CD-SEM “E3660” | Press release | GlobeNewswire | -0.58% | +1.11% | |
| Advantest to Present Latest Test Solutions at SEMICON Taiwan 2025 | Press release | GlobeNewswire | +0.28% | +1.08% | |
| Advantest to Showcase IC Test Solutions at SEMICON India 2025, Sept. 2-4 in New Delhi | Press release | GlobeNewswire | +0.17% | +0.81% | |
| Advantest will Showcase Latest Memory Test Solutions at Future of Memory and Storage 2025 | Press release | GlobeNewswire | +3.77% | +4.70% | |
| Advantest’s VOICE 2025 Draws Record Attendance in Austin, Texas | Press release | GlobeNewswire | +0.17% | +1.88% | |
| Advantest Ranks Global #1 in Assembly Test Equipment Supplier and Top 10 Customer Service Categories in 2025 Customer Satisfaction Survey | Press release | GlobeNewswire | +0.00% | +1.75% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Southeast Asia 2025, May 20-22 | Press release | GlobeNewswire | +3.15% | +3.98% | |
| Advantest Unveils SiConic Test Engineering: Unified, Scalable Bench Environment for Debug and Validation | Press release | GlobeNewswire | +0.00% | +2.46% | |
| Advantest to Showcase Latest IC Test Solutions at SEMICON China 2025, March 26-28 in Shanghai | Press release | GlobeNewswire | -0.03% | +0.23% | |
| Advantest to Showcase IC Test Solutions at IESA Vision Summit 2025, March 5-7 in Gujarat, India | Press release | GlobeNewswire | +0.00% | -4.17% | |
| Advantest Introduces SiConic: Groundbreaking Solution for Automated Silicon Validation | Press release | GlobeNewswire | +0.00% | -0.06% | |
| MULTIMEDIA UPDATE -- Advantest Introduces SiConic: Groundbreaking Solution for Automated Silicon Validation | Press release | GlobeNewswire | — | -0.03% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Korea 2025, Feb. 19-21, in Seoul | Press release | GlobeNewswire | +1.31% | +1.47% | |
| Advantest Unveils T5801 Ultra-High-Speed Memory Test System to Power Next-Generation DRAM Devices | Press release | GlobeNewswire | -0.48% | +1.07% | |
| Advantest Opens Registration for International VOICE 2025 Developer Conference, May 12-14 | Press release | GlobeNewswire | +0.00% | +0.16% | |
| Advantest Forms Strategic Partnerships with FormFactor and Technoprobe | Press release | GlobeNewswire | +2.88% | +2.25% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Japan 2024, Dec. 11-13, in Tokyo | Press release | GlobeNewswire | +0.00% | -1.55% | |
| Advantest Launches KGD Test Cell for Power Semiconductors | Press release | GlobeNewswire | +0.00% | -2.63% | |
| Advantest Launches ACS Gemini™ – New Developer Platform for Accelerating ACS RTDI™ Application Development | Press release | GlobeNewswire | +1.28% | +0.27% | |
| Advantest Announces Advanced Power Multiplexer for V93000 EXA Scale Test Platform | Press release | GlobeNewswire | +0.00% | +0.07% | |
| Advantest Rolls Out Wave Scale RF20ex: High-Frequency, High-Bandwidth RF IC Test Card for V93000 EXA Scale Platform | Press release | GlobeNewswire | +0.00% | +1.13% | |
| Advantest to Showcase Latest Test Solutions at SEMICON Europa 2024, Nov. 12-15, in Munich, Germany | Press release | GlobeNewswire | -0.07% | -1.29% | |
| Advantest to Showcase Latest Semiconductor Test Solutions at the 2024 International Test Conference in San Diego, California | Press release | GlobeNewswire | -0.53% | +0.85% | |
| Advantest Announces Call for Papers for VOICE 2025 Developer Conference in Austin, Texas | Press release | GlobeNewswire | +0.00% | -0.14% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ATEYY section they belong to.
Where else ATEYY is measured.
ATEYY earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| SCI ENGINEERED MTRLS INC (SCIA) | 77 | 0.00% | 34% |
| Tron Inc. (TRON) | 77 | -0.47% | 34% |
| Denovo Capital Corp (DSY_CDNX) | 75 | 0.00% | 19% |
| Encore Wire Corporation (WIRE) | 75 | +0.03% | 54% |
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 Technology names, measured the same way →
Every ticker we measure the same way24
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Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is ADVANTEST CORP SP/ADR's median reaction calculated?
Every labeled ATEYY 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 75 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. 52% of ATEYY'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 ATEYY'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.