STMicroelectronics N.V. (STM)
STM moved a median of -0.07% 30 minutes after news, and -0.04% by the close. How STM actually reacts to news — the realized, point-in-time move the market made, measured across 1,238 labeled events over the last three years with zero look-ahead.
STM’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.03% | 45% | 1,238 |
| 30-min | -0.07% | 47% | 1,238 |
| 60-min | -0.09% | 45% | 1,238 |
| to close | -0.04% | 48% | 1,234 |
| Middle 50% of STM reactions | -0.47% to +0.35% |
|---|---|
| Median reaction (30-min) | -0.07% |
| Measured reactions | 1,238 |
Half of all STMicroelectronics N.V. news events land between -0.47% and +0.35% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How STM reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 48 | +0.10% | 56% | +0.43% |
| Analyst downgrades | 34 | -0.10% | 29% | +0.15% |
| Rating reiterations | 48 | -0.02% | 48% | +0.01% |
| Price-target cuts | 12 | +0.09% | 58% | -0.13% |
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. 2 further classes were observed with fewer than 10 measured events and are not published. See how STM ranks against every other measured name →
That’s how STM usually reacts — get an email when it moves on news →Email me when STM moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to STM's baseline. Nothing else.
Recent STM events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K STMicroelectronics N.V. For: Oct 12 | SEC filing · Form 6-K | SEC EDGAR | +0.20% | +1.43% | |
| Form 6-K STMicroelectronics N.V. For: Oct 13 | SEC filing · Form 6-K | SEC EDGAR | +0.20% | +1.43% | |
| STMicroelectronics to propose the reappointment of Jean-Marc Chery as President & CEO | Press release | GlobeNewswire | +0.20% | +1.43% | |
| Form 6-K STMicroelectronics N.V. For: Oct 05 | SEC filing · Form 6-K | SEC EDGAR | -0.04% | +1.87% | |
| STMicroelectronics announces timing for third quarter 2026 earnings release and conference call | Press release | GlobeNewswire | -0.04% | +1.87% | |
| STMicroelectronics introduces automotive image sensor to help scale affordable in-cabin sensing | Press release | GlobeNewswire | -0.02% | -0.33% | |
| Form 6-K STMicroelectronics N.V. For: Aug 31 | SEC filing · Form 6-K | SEC EDGAR | +0.28% | -0.69% | |
| Form 6-K STMicroelectronics N.V. For: Aug 25 | SEC filing · Form 6-K | SEC EDGAR | +0.57% | -0.52% | |
| Form 6-K STMicroelectronics N.V. For: Aug 19 | SEC filing · Form 6-K | SEC EDGAR | +0.20% | -1.30% | |
| Form 6-K STMicroelectronics N.V. For: Jul 27 | SEC filing · Form 6-K | SEC EDGAR | +0.20% | -1.30% | |
| Form 6-K STMicroelectronics N.V. For: Aug 17 | SEC filing · Form 6-K | SEC EDGAR | +0.61% | -0.25% | |
| Form 6-K STMicroelectronics N.V. For: Aug 10 | SEC filing · Form 6-K | SEC EDGAR | -1.25% | — | |
| Form 6-K STMicroelectronics N.V. For: Aug 04 | SEC filing · Form 6-K | SEC EDGAR | +0.58% | -0.13% | |
| Form 6-K STMicroelectronics N.V. For: Jun 27 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | -2.91% | |
| Form 6-K STMicroelectronics N.V. For: Jul 27 | SEC filing · Form 6-K | SEC EDGAR | +1.25% | +1.40% | |
| Form 6-K STMicroelectronics N.V. For: Jun 27 | SEC filing · Form 6-K | SEC EDGAR | +0.26% | -1.33% | |
| STMicroelectronics Reports Q2 2026 Financial Results | Press release | GlobeNewswire | -0.24% | -0.32% | |
| Form 6-K STMicroelectronics N.V. For: Jul 20 | SEC filing · Form 6-K | SEC EDGAR | -0.05% | -0.77% | |
| Form 6-K STMicroelectronics N.V. For: Jul 13 | SEC filing · Form 6-K | SEC EDGAR | -1.61% | -2.05% | |
| Form 6-K STMicroelectronics N.V. For: Jul 06 | SEC filing · Form 6-K | SEC EDGAR | -0.12% | -1.30% | |
| STMicroelectronics unveils world’s first ST54M secure mobile chip with post-quantum cryptography for next-generation connected services | Press release | GlobeNewswire | -0.84% | +0.14% | |
| STMicroelectronics unveils new compact direct Time-of-Flight 3D LiDAR module bringing high-resolution spatial awareness to compact edge AI systems with industry-leading resolution and performance | Press release | GlobeNewswire | -0.34% | -0.49% | |
| Form 6-K STMicroelectronics N.V. For: Jun 16 | SEC filing · Form 6-K | SEC EDGAR | +0.94% | -3.69% | |
| Form 11-K STMicroelectronics N.V. For: Jun 04 | SEC filing · Form 11-K | SEC EDGAR | +0.05% | +1.23% | |
| STMicroelectronics high-performance vibration sensor with in-sensor AI offers a compelling alternative to piezosensor to fast-growing industrial condition-monitoring market | Press release | GlobeNewswire | +0.07% | -0.41% | |
| Form 6-K STMicroelectronics N.V. For: Jun 02 | SEC filing · Form 6-K | SEC EDGAR | +1.16% | +4.74% | |
| All resolutions approved at the 2026 STMicroelectronics’ Annual General Meeting of Shareholders | Press release | GlobeNewswire | -1.03% | -3.90% | |
| Form 6-K STMicroelectronics N.V. For: May 27 | SEC filing · Form 6-K | SEC EDGAR | -1.03% | -3.90% | |
| Statement from the Supervisory Board of STMicroelectronics | Press release | GlobeNewswire | -1.03% | -3.90% | |
| Form SD STMicroelectronics N.V. | SEC filing · Form SD | SEC EDGAR | -0.59% | +0.04% | |
| Form 6-K STMicroelectronics N.V. For: Mar 28 | SEC filing · Form 6-K | SEC EDGAR | -0.38% | +2.11% | |
| STMicroelectronics brings always-on vision to next-generation personal electronics with new ultralow-power image sensors | Press release | GlobeNewswire | +1.12% | -0.38% | |
| NAAIM 2026 Founders Award Presented to Davide Pandini, Italian Financial Analyst and Technical Director of STMicroelectronics | Press release | PR Web | -0.20% | +0.51% | |
| Form 6-K STMicroelectronics N.V. For: Apr 23 | SEC filing · Form 6-K | SEC EDGAR | -0.67% | +0.14% | |
| STMicroelectronics Reports Q1 2026 Financial Results | Press release | GlobeNewswire | +2.65% | +3.00% | |
| STMicroelectronics to host investor call on the LEO opportunity | Press release | GlobeNewswire | +2.65% | +3.00% | |
| Form 6-K STMicroelectronics N.V. For: Mar 26 | SEC filing · Form 6-K | SEC EDGAR | -0.34% | +0.25% | |
| Form 6-K STMicroelectronics N.V. For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | -0.34% | +0.25% | |
| STMicroelectronics Reports on Resolutions to be Proposed at the 2026 Annual General Meeting of Shareholders | Press release | GlobeNewswire | -0.34% | +0.25% | |
| Form F-3ASR STMicroelectronics N.V. | SEC filing · Form F-3ASR | SEC EDGAR | +0.78% | -0.78% | |
| STMicroelectronics expands 800 VDC AI datacenter power conversion portfolio with new 12V and 6V architectures in collaboration with NVIDIA | Press release | GlobeNewswire | -0.22% | -1.08% | |
| STMicroelectronics accelerates global adoption and market growth of Physical AI with NVIDIA | Press release | GlobeNewswire | -0.22% | -1.08% | |
| STMicroelectronics and Leopard Imaging accelerate robotics vision with NVIDIA Jetson-ready multi-sensor module | Press release | GlobeNewswire | -0.22% | -1.08% | |
| STMicroelectronics propels new era of ultra-wideband technology for automotive and smart device applications | Press release | GlobeNewswire | +0.42% | -0.36% | |
| STMicroelectronics enters high-volume production of its industry-leading silicon photonics platform to support AI infrastructure demand | Press release | GlobeNewswire | +0.13% | +7.54% | |
| STMicroelectronics’ new STM32 series redefines entry-level microcontroller performance and value for smart devices everywhere | Press release | GlobeNewswire | +1.68% | -0.18% | |
| Form 6-K STMicroelectronics N.V. For: Mar 02 | SEC filing · Form 6-K | SEC EDGAR | +0.44% | +2.04% | |
| STMicroelectronics to host investor calls on Cloud AI and Intelligent Sensing Enabling Physical AI | Press release | GlobeNewswire | +0.92% | +2.79% | |
| STMicroelectronics’ sensor and secure wireless technologies support Snapdragon Wear Elite | Press release | GlobeNewswire | -0.72% | +0.70% | |
| Form 20-F STMicroelectronics N.V. For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | +0.31% | +0.60% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the STM section they belong to.
Where else STM is measured.
STM earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Micron Technology, Inc. (MU) | 1,242 | +0.00% | 50% |
| Five9, Inc. (FIVN) | 1,238 | -0.10% | 46% |
| F5, Inc. (FFIV) | 1,237 | +0.09% | 54% |
| Photronics, Inc. (PLAB) | 1,229 | 0.00% | 50% |
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 →
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Every name we’ve measured, in one place.
How the numbers are made.
How is STMicroelectronics N.V.'s median reaction calculated?
Every labeled STM 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 1,238 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. 47% of STM'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 STM'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.