Silicon Laboratories, Inc. (SLAB)
SLAB moved a median of -0.08% 30 minutes after news, and +0.07% by the close. How SLAB actually reacts to news — the realized, point-in-time move the market made, measured across 330 labeled events over the last three years with zero look-ahead.
SLAB’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.04% | 37% | 323 |
| 30-min | -0.08% | 43% | 330 |
| 60-min | -0.04% | 47% | 330 |
| to close | +0.07% | 52% | 326 |
| Middle 50% of SLAB reactions | -0.52% to +0.43% |
|---|---|
| Median reaction (30-min) | -0.08% |
| Measured reactions | 330 |
Half of all Silicon Laboratories, Inc. news events land between -0.52% and +0.43% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How SLAB reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 20 | +0.27% | 70% | +2.06% |
| Analyst downgrades | 16 | -0.16% | 25% | +0.11% |
| Rating reiterations | 52 | -0.03% | 48% | -0.10% |
| Price-target raises | 16 | -0.02% | 50% | +0.88% |
| Price-target cuts | 14 | -0.14% | 43% | +0.73% |
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 SLAB ranks against every other measured name →
That’s how SLAB usually reacts — get an email when it moves on news →Email me when SLAB moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SLAB's baseline. Nothing else.
Recent SLAB events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Silicon Labs Expands AI Developer Platform to Simplify IoT Development and Scale Edge Intelligence | Press release | PR Newswire | -0.12% | -0.43% | |
| Silicon Labs Announces Executive Keynote Lineup for Works With Summit 2026 | Press release | PR Newswire | +0.00% | -0.13% | |
| Silicon Labs Opens New Austin Innovation Center with Support from Texas CHIPS Act | Press release | PR Newswire | -0.00% | +0.18% | |
| Form 10-Q SILICON LABORATORIES For: Jul 04 | SEC filing · Form 10-Q | SEC EDGAR | -0.04% | +0.23% | |
| Form 8-K SILICON LABORATORIES For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | +0.23% | |
| Silicon Labs Reports Second Quarter 2026 Results | Press release | PR Newswire | -0.04% | +0.23% | |
| Silicon Labs Unveils BG2B, Its Lowest-Power Bluetooth LE SoC with Industry-Leading Power Efficiency, Security, and Integration | Press release | PR Newswire | -0.16% | +0.11% | |
| Signify Enhances Philips Hue Matter Support Through Collaboration with Silicon Labs | Press release | PR Newswire | +0.04% | +0.06% | |
| Silicon Labs Advances Large-Scale Matter Deployments with 200-Node Matter-over-Thread Validation Network | Press release | PR Newswire | -0.03% | -0.35% | |
| Form SD SILICON LABORATORIES | SEC filing · Form SD | SEC EDGAR | -0.06% | -0.37% | |
| Form 8-K SILICON LABORATORIES For: May 22 | SEC filing · Form 8-K | SEC EDGAR | +0.21% | +0.70% | |
| Powered by Silicon Labs, Comminent Ships 500,000 Wi-SUN Modules | Press release | PR Newswire | +0.02% | +0.19% | |
| Form 10-Q SILICON LABORATORIES For: Apr 04 | SEC filing · Form 10-Q | SEC EDGAR | -0.23% | -0.21% | |
| Form 8-K SILICON LABORATORIES For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -0.23% | -0.21% | |
| Silicon Labs Reports First Quarter 2026 Results | Press release | PR Newswire | -0.23% | -0.21% | |
| Form 8-K SILICON LABORATORIES For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | +0.10% | +0.30% | |
| Silicon Labs Announces Promotion of Dr. Aslam Rafi to Senior Fellow | Press release | PR Newswire | +0.04% | +0.37% | |
| Form 8-K SILICON LABORATORIES For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | +0.33% | |
| Form DEFM14A SILICON LABORATORIES | SEC filing · Form DEFM14A | SEC EDGAR | +0.33% | -0.10% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | +0.07% | +0.12% | |
| Form PREM14A SILICON LABORATORIES For: Mar 13 | SEC filing · Form PREM14A | SEC EDGAR | -0.14% | +0.40% | |
| Form ARS SILICON LABORATORIES For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.07% | +0.41% | |
| Form DEF 14A SILICON LABORATORIES For: Apr 23 | SEC filing · Form DEF | SEC EDGAR | -0.07% | +0.41% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.07% | +0.41% | |
| Silicon Labs' 2025 Annual Report to Shareholders and 2026 Proxy Statement Available Online | Press release | PR Newswire | -0.07% | +0.41% | |
| BANF and Silicon Labs Digitize the "Last Analog Domain" with Intelligent Tire Monitoring Solution | Press release | PR Newswire | +0.04% | -0.13% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.16% | -0.23% | |
| Silicon Labs Expands Hyderabad Facility in Ceremony Attended by U.S. Consul General | Press release | PR Newswire | -0.01% | +0.29% | |
| Durin Selects Silicon Labs' MG24 Wireless SoC to Accelerate Aliro Mobile Access for Smart Locks and Readers | Press release | PR Newswire | +0.07% | +0.20% | |
| Halper Sadeh LLC is Investigating Whether SLAB, DVN, STEL, CLBK are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +0.10% | +0.39% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.22% | -0.46% | |
| Form 10-K SILICON LABORATORIES For: Jan 03 | SEC filing · Form 10-K | SEC EDGAR | -0.26% | -0.43% | |
| Halper Sadeh LLC is Investigating Whether SLAB, DVN, CLBK, RIG are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +0.03% | -0.01% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.95% | -1.25% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.95% | -1.25% | |
| Halper Sadeh LLC Encourages SLAB and WBS Shareholders to Contact the Firm to Discuss Their Rights | Press release | GlobeNewswire | +0.08% | +0.97% | |
| Form 8-K SILICON LABORATORIES For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | -0.23% | -0.90% | |
| Form DEFA14A SILICON LABORATORIES | SEC filing · Form DEFA14A | SEC EDGAR | -0.23% | -0.90% | |
| Halper Sadeh LLC Encourages SLAB and WBS Shareholders to Contact the Firm to Discuss Their Rights | Press release | PR Newswire | -0.07% | +0.32% | |
| Silicon Labs Reports Fourth Quarter and Full Year 2025 Results | Press release | PR Newswire | -0.23% | -0.90% | |
| SLAB Stock Alert: Halper Sadeh LLC is Investigating Whether the Sale of Silicon Laboratories Inc. is Fair to Shareholders | Press release | Business Wire | -0.23% | -0.90% | |
| Silicon Labs Announces Fourth Quarter 2025 Earnings Webcast | Press release | PR Newswire | +0.65% | -1.65% | |
| Durin Debuts MagicKey(™): The First Multi-Factor Authentication for Home Entry | Press release | PR Newswire | -0.05% | +4.10% | |
| Silicon Labs Appoints Ian N. Dawson as Chief Information Security Officer to Lead Enterprise Security Strategy | Press release | PR Newswire | +0.07% | -1.12% | |
| Silicon Labs Accelerates the Future of Connected Intelligence at CES 2026 | Press release | PR Newswire | +0.36% | +3.85% | |
| Silicon Labs to Participate at Upcoming Investor Conferences | Press release | PR Newswire | +0.00% | +1.16% | |
| Form 10-Q SILICON LABORATORIES For: Oct 04 | SEC filing · Form 10-Q | SEC EDGAR | -5.34% | -0.02% | |
| Form 8-K SILICON LABORATORIES For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | -5.34% | -0.02% | |
| Silicon Labs Reports Third Quarter 2025 Results | Press release | PR Newswire | -5.34% | -0.02% | |
| Silicon Labs Unveils the Next Evolution of IoT Development with the Simplicity Ecosystem | Press release | PR Newswire | -0.77% | +0.53% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SLAB section they belong to.
Where else SLAB is measured.
SLAB earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ANSYS, Inc. (ANSS) | 334 | -0.05% | 44% |
| QUANTENNA COMMUNICATIONS (QTNA) | 334 | -0.06% | 45% |
| AutoWeb, Inc. (AUTO) | 329 | 0.00% | 43% |
| Veeco Instruments Inc. (VECO) | 327 | -0.23% | 41% |
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 Silicon Laboratories, Inc.'s median reaction calculated?
Every labeled SLAB 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 330 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. 43% of SLAB'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 SLAB'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.