Yandex N.V. - Class A Ordinary Shares (YNDX)
YNDX moved a median of -0.09% 30 minutes after news, and -0.05% by the close. How YNDX actually reacts to news — the realized, point-in-time move the market made, measured across 544 labeled events over its full measured history with zero look-ahead.
YNDX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.04% | 44% | 414 |
| 30-min | -0.09% | 45% | 414 |
| 60-min | -0.08% | 45% | 414 |
| to close | -0.05% | 48% | 414 |
| Middle 50% of YNDX reactions | -0.83% to +0.68% |
|---|---|
| Median reaction (30-min) | -0.09% |
| Measured reactions | 544 |
Half of all Yandex N.V. - Class A Ordinary Shares news events land between -0.83% and +0.68% 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 YNDX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to YNDX's baseline. Nothing else.
Recent YNDX events, each with its measured reaction.
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the YNDX section they belong to.
Where else YNDX is measured.
YNDX earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Yelp Inc. (YELP) | 546 | +0.24% | 60% |
| BlackBerry Limited (BB) | 544 | +0.11% | 51% |
| Applied Materials, Inc. (AMAT) | 543 | -0.02% | 49% |
| CarGurus, Inc. - Class A (CARG) | 541 | +0.13% | 57% |
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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How LLY actually reacts to news, measured.
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How UNH actually reacts to news, measured.
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How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
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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.
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How CRM actually reacts to news, measured.
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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 Yandex N.V. - Class A Ordinary Shares's median reaction calculated?
Every labeled YNDX 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 544 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 YNDX'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 YNDX'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.