Power Integrations, Inc. (POWI)
POWI moved a median of -0.09% 30 minutes after news, and -0.16% by the close. How POWI actually reacts to news — the realized, point-in-time move the market made, measured across 338 labeled events over the last three years with zero look-ahead.
POWI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.16% | 56% | 335 |
| 30-min | -0.09% | 39% | 336 |
| 60-min | -0.03% | 46% | 336 |
| to close | -0.16% | 46% | 335 |
| Middle 50% of POWI reactions | -1.07% to +0.74% |
|---|---|
| Median reaction (30-min) | -0.09% |
| Measured reactions | 338 |
Half of all Power Integrations, Inc. news events land between -1.07% and +0.74% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How POWI reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 19 | -0.15% | 37% | -0.17% |
| Analyst downgrades | 15 | +0.33% | 60% | -0.33% |
| Rating reiterations | 47 | -0.25% | 36% | -0.68% |
| Price-target cuts | 13 | +0.16% | 62% | -0.93% |
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 POWI ranks against every other measured name →
That’s how POWI usually reacts — get an email when it moves on news →Email me when POWI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to POWI's baseline. Nothing else.
Recent POWI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | — | — | |
| Power Integrations to Announce Third-Quarter Financial Results | Press release | Business Wire | +0.25% | -0.02% | |
| Power Integrations and Ideal Power Collaborate on Efficient, Always-On Solid State Circuit Breakers for 800 VDC AI Data Centers | Press release | Business Wire | -1.76% | -3.31% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -2.41% | -3.66% | |
| Power Integrations Unveils 4th Generation of Pioneering CAPZero™ X-Capacitor Discharge IC Family | Press release | Business Wire | +0.10% | -2.66% | |
| Form 8-K POWER INTEGRATIONS INC For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | +0.40% | -1.53% | |
| Form 10-Q POWER INTEGRATIONS INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.58% | +6.39% | |
| Form S-8 POWER INTEGRATIONS INC | SEC filing · Form S-8 | SEC EDGAR | +1.58% | +6.39% | |
| Form 8-K POWER INTEGRATIONS INC For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -4.58% | -4.14% | |
| Power Integrations Demonstrates World’s First 2200 V GaN Technology for Next-Era High-Voltage Power Systems | Press release | Business Wire | +0.98% | -2.23% | |
| Power Integrations Reports Second-Quarter Financial Results | Press release | Business Wire | -4.58% | -4.14% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +1.32% | -0.39% | |
| Power Integrations to Announce Second-Quarter Financial Results on August 5th, 2026 | Press release | Business Wire | +0.93% | +1.75% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +0.63% | -1.70% | |
| Form 8-K POWER INTEGRATIONS INC For: Jun 03 | SEC filing · Form 8-K | SEC EDGAR | -0.59% | -6.63% | |
| Power Integrations Unveils Space-Saving, Ultra-Slim Auxiliary PSU Reference Designs for NVIDIA Kyber 800 VDC AI Data Center | Press release | Business Wire | +1.68% | -1.04% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +0.28% | +2.23% | |
| Form SD POWER INTEGRATIONS INC | SEC filing · Form SD | SEC EDGAR | +1.10% | +5.38% | |
| Form 10-Q POWER INTEGRATIONS INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.88% | -5.69% | |
| Form 8-K POWER INTEGRATIONS INC For: May 04 | SEC filing · Form 8-K | SEC EDGAR | +1.88% | -5.69% | |
| Power Integrations Reports First-Quarter Financial Results | Press release | Business Wire | +1.88% | -5.69% | |
| Power Integrations Names Mike Balow Senior Vice President, Worldwide Sales | Press release | Business Wire | -0.37% | -0.95% | |
| Form ARS POWER INTEGRATIONS INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +4.64% | +2.63% | |
| Form DEF 14A POWER INTEGRATIONS INC For: Apr 13 | SEC filing · Form DEF | SEC EDGAR | +4.64% | +2.63% | |
| Form DEFA14A POWER INTEGRATIONS INC | SEC filing · Form DEFA14A | SEC EDGAR | +4.64% | +2.63% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +0.02% | +4.83% | |
| Power Integrations to Webcast First-Quarter Earnings Conference Call on May 7 | Press release | Business Wire | -0.64% | +2.82% | |
| Power Integrations Extends Flyback Topology to Enable 440 W, Offering Simpler Alternatives to Resonant Power Designs | Press release | Business Wire | +1.83% | +8.08% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +2.40% | -0.86% | |
| Form 10-K POWER INTEGRATIONS INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -1.29% | -3.11% | |
| Form 8-K POWER INTEGRATIONS INC For: Feb 01 | SEC filing · Form 8-K | SEC EDGAR | +4.60% | +3.27% | |
| Power Integrations Reports Fourth-Quarter and Full-Year Financial Results | Press release | Business Wire | +4.60% | +3.27% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +1.67% | +2.69% | |
| Form 8-K POWER INTEGRATIONS INC For: Jan 27 | SEC filing · Form 8-K | SEC EDGAR | +1.01% | +3.22% | |
| Form S-8 POWER INTEGRATIONS INC | SEC filing · Form S-8 | SEC EDGAR | +1.01% | +3.22% | |
| Power Integrations to Release Fourth-Quarter Financial Results on February 5 | Press release | Business Wire | +0.66% | +1.66% | |
| Power Integrations Names Chris Jacobs Senior Vice President, Marketing and Product Strategy | Press release | Business Wire | +1.18% | +4.20% | |
| Power Integrations Reports Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +0.52% | +1.28% | |
| Form S-8 POWER INTEGRATIONS INC | SEC filing · Form S-8 | SEC EDGAR | -0.18% | +1.02% | |
| Power Integrations Bolsters Leadership Team with Addition of Julie Currie as Chief People and Transformation Officer | Press release | Business Wire | +0.84% | +2.07% | |
| Form 8-K POWER INTEGRATIONS INC For: Nov 14 | SEC filing · Form 8-K | SEC EDGAR | -0.60% | -0.75% | |
| Power Integrations Names Nancy Erba as Chief Financial Officer | Press release | Business Wire | -0.60% | -0.75% | |
| Form 10-Q POWER INTEGRATIONS INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.27% | +5.86% | |
| Form 8-K POWER INTEGRATIONS INC For: Nov 05 | SEC filing · Form 8-K | SEC EDGAR | +2.27% | +5.86% | |
| Power Integrations Reports Third-Quarter Financial Results | Press release | Business Wire | +2.27% | +5.86% | |
| Power Integrations to Release Third-Quarter Financial Results on November 5 | Press release | Business Wire | -0.53% | -1.60% | |
| Power Integrations Details 1250 V and 1700 V PowiGaN Technology for Next-Generation 800 VDC AI Data Centers | Press release | Business Wire | +2.43% | +15.89% | |
| Form 8-K POWER INTEGRATIONS INC For: Sep 16 | SEC filing · Form 8-K | SEC EDGAR | -0.07% | -2.67% | |
| Power Integrations Announces CFO Transition | Press release | Business Wire | -0.07% | -2.67% | |
| Power Integrations Rolls Out Reference Design Kit for Solar Race Cars Featuring High-Efficiency Gallium-Nitride IC | Press release | Business Wire | -0.89% | +3.42% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the POWI section they belong to.
Where else POWI is measured.
POWI earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ACI Worldwide, Inc. (ACIW) | 339 | +0.07% | 53% |
| Arlo Technologies, Inc. (ARLO) | 339 | +0.09% | 54% |
| Angi Inc. - Class A (ANGI) | 337 | +0.17% | 54% |
| CyberArk Software Ltd. - Ordinary Shares (CYBR) | 337 | -0.04% | 48% |
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.
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How the numbers are made.
How is Power Integrations, Inc.'s median reaction calculated?
Every labeled POWI 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 338 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. 39% of POWI'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 POWI'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.