Semtech Corporation (SMTC)
SMTC moved a median of -0.22% 30 minutes after news, and -0.32% by the close. How SMTC actually reacts to news — the realized, point-in-time move the market made, measured across 1,439 labeled events over the last three years with zero look-ahead.
SMTC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.03% | 51% | 1,433 |
| 30-min | -0.22% | 40% | 1,436 |
| 60-min | -0.37% | 42% | 1,436 |
| to close | -0.32% | 44% | 1,435 |
| Middle 50% of SMTC reactions | -1.25% to +0.80% |
|---|---|
| Median reaction (30-min) | -0.22% |
| Measured reactions | 1,439 |
Half of all Semtech Corporation news events land between -1.25% and +0.80% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How SMTC reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 22 | -1.45% | 36% | +1.07% |
| Analyst downgrades | 10 | -0.51% | 40% | +2.61% |
| Coverage initiations | 13 | +0.47% | 69% | +2.40% |
| Rating reiterations | 164 | -0.10% | 48% | +1.07% |
| Price-target raises | 48 | -0.17% | 46% | -0.10% |
| Price-target cuts | 13 | -0.95% | 31% | +1.96% |
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. See how SMTC ranks against every other measured name →
That’s how SMTC usually reacts — get an email when it moves on news →Email me when SMTC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SMTC's baseline. Nothing else.
Recent SMTC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K SEMTECH CORP For: Oct 15 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Semtech Outlines Data Center Growth Strategy at Analyst Day | Press release | Business Wire | -3.71% | -5.87% | |
| Did Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | +0.01% | +0.59% | |
| Tower Semiconductor and Semtech Expand SiGe Partnership to Scale Power-Efficient Analog Connectivity for Data Centers | Press release | Business Wire | -0.48% | +3.80% | |
| Semtech Corporation to Host Data Center Analyst Day on October 15, 2026 | Press release | Business Wire | -4.11% | -8.42% | |
| Semtech and Palo Alto Networks Secure Industrial IoT with Zero Trust | Press release | Business Wire | -1.59% | -1.90% | |
| Semtech’s LoRa Plus LR2021 Transceiver Wins 2026 EDGE Award | Press release | Business Wire | +1.94% | +0.12% | |
| Semtech Advances Next-Gen AI Optical Interconnects for XPO | Press release | Business Wire | -3.08% | -6.79% | |
| Semtech Enables 50G Optical Transition for AI-Driven 5G-Advanced | Press release | Business Wire | -3.08% | -6.79% | |
| Semtech SurgeSwitch Protects Cobots from Surge and ESD | Press release | Business Wire | +3.27% | +9.22% | |
| Semtech Delivers 10G PON Chipset for Triple-Generation 50G OLT Modules | Press release | Business Wire | +0.89% | -0.09% | |
| Semtech Sets Bar for 224G Optical Connectivity | Press release | Business Wire | +0.89% | -0.09% | |
| Form 10-Q SEMTECH CORP For: Jul 26 | SEC filing · Form 10-Q | SEC EDGAR | -3.70% | -4.94% | |
| Form S-8 SEMTECH CORP | SEC filing · Form S-8 | SEC EDGAR | -3.70% | -4.94% | |
| Did Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | +1.35% | +1.84% | |
| Form 8-K SEMTECH CORP For: Aug 25 | SEC filing · Form 8-K | SEC EDGAR | +4.37% | +7.57% | |
| Semtech Announces Second Quarter of Fiscal Year 2027 Results | Press release | Business Wire | +4.37% | +7.57% | |
| Semtech Hosts LoRa® Ecosystem Forum at IOTE 2026 | Press release | Business Wire | +1.35% | +1.84% | |
| Semtech Expands LoRa Plus™ Family: LR2022 and LR2012 Now in Production | Press release | Business Wire | +0.38% | -7.47% | |
| Semtech Corporation to Host Data Center Teach-in Event on Oct. 15, 2026 | Press release | Business Wire | +2.76% | +7.11% | |
| Form 8-K SEMTECH CORP For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | -0.25% | -3.67% | |
| Semtech Corporation Announces Definitive Agreement on Sale of Cellular Module Business to Compal Electronics | Press release | Business Wire | -0.25% | -3.67% | |
| Semtech Announces Second Quarter of Fiscal Year 2027 Conference Call | Press release | Business Wire | -1.20% | -1.89% | |
| Did Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -0.80% | -2.43% | |
| Form 8-K SEMTECH CORP For: Jul 06 | SEC filing · Form 8-K | SEC EDGAR | -0.71% | -2.77% | |
| Form 8-K SEMTECH CORP For: Jun 02 | SEC filing · Form 8-K | SEC EDGAR | -0.70% | -2.10% | |
| Form SD SEMTECH CORP | SEC filing · Form SD | SEC EDGAR | -1.34% | -2.47% | |
| Form 10-Q SEMTECH CORP For: Apr 26 | SEC filing · Form 10-Q | SEC EDGAR | -1.61% | +1.64% | |
| Form 8-K SEMTECH CORP For: May 26 | SEC filing · Form 8-K | SEC EDGAR | -4.98% | -8.61% | |
| Semtech Announces First Quarter of Fiscal Year 2027 Results | Press release | Business Wire | -4.98% | -8.61% | |
| Semtech Announces First Quarter of Fiscal Year 2027 Conference Call | Press release | Business Wire | -0.71% | -0.19% | |
| Form ARS SEMTECH CORP For: Jan 25 | SEC filing · Form ARS | SEC EDGAR | -0.81% | -2.31% | |
| Form DEF 14A SEMTECH CORP For: Jun 04 | SEC filing · Form DEF | SEC EDGAR | -0.81% | -2.31% | |
| Form DEFA14A SEMTECH CORP | SEC filing · Form DEFA14A | SEC EDGAR | -0.81% | -2.31% | |
| Did Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -0.34% | -5.43% | |
| Semtech SurgeSwitch® Tackles the USB-PD VBus Protection Gap at 53 V | Press release | Business Wire | +1.15% | +3.86% | |
| Form 10-K SEMTECH CORP For: Jan 25 | SEC filing · Form 10-K | SEC EDGAR | +1.15% | +3.86% | |
| Semtech to Participate in the 38th Annual ROTH Conference | Press release | Business Wire | +0.69% | -5.27% | |
| Form 8-K SEMTECH CORP For: Mar 16 | SEC filing · Form 8-K | SEC EDGAR | +0.69% | -5.27% | |
| Semtech Announces Fourth Quarter and Fiscal Year 2026 Results | Press release | Business Wire | +0.69% | -5.27% | |
| Semtech Launches 224Gbps IC Family for Linear Optics Era | Press release | Business Wire | +0.76% | +3.49% | |
| Did Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | +0.22% | +0.41% | |
| Semtech Showcases AI Interconnect Leadership with Live 1.6T Demos at OFC 2026 | Press release | Business Wire | +0.21% | -0.82% | |
| Semtech Launches 5G RedCap Modem for Industrial IoT | Press release | Business Wire | +0.68% | +2.71% | |
| Semtech Partners with Digital Barriers to Launch AI-Powered Video Compression | Press release | Business Wire | +0.68% | +2.71% | |
| Semtech LoRa® Technology Helps Power Amazon Sidewalk’s Global Expansion | Press release | Business Wire | -1.41% | -1.38% | |
| Semtech Expands Data Center Portfolio with Acquisition of HieFo Corporation | Press release | Business Wire | -3.00% | -5.53% | |
| Semtech Announces Fourth Quarter and Fiscal Year 2026 Conference Call | Press release | Business Wire | +2.19% | +10.26% | |
| Semtech to Showcase IoT Portfolio at MWC26 Barcelona | Press release | Business Wire | +1.39% | +1.84% | |
| Semtech Announces Participation at Upcoming Investor Conference | Press release | Business Wire | -1.49% | -2.99% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SMTC section they belong to.
Where else SMTC is measured.
SMTC earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Intuit Inc. (INTU) | 1,484 | +0.02% | 51% |
| MongoDB, Inc. - Class A (MDB) | 1,444 | +0.10% | 54% |
| Xilinx, Inc. (XLNX) | 1,433 | 0.00% | 49% |
| Limelight Networks, Inc. (LLNW) | 1,426 | 0.00% | 47% |
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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How the numbers are made.
How is Semtech Corporation's median reaction calculated?
Every labeled SMTC 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 1,439 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. 40% of SMTC'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 SMTC'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.