Acorn Energy, Inc. (ACFN)
ACFN moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How ACFN actually reacts to news — the realized, point-in-time move the market made, measured across 104 labeled events over the last three years with zero look-ahead.
ACFN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 29% | 91 |
| 30-min | 0.00% | 40% | 94 |
| 60-min | 0.00% | 41% | 95 |
| to close | 0.00% | 48% | 98 |
| Middle 50% of ACFN reactions | -1.94% to +2.07% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 104 |
Half of all Acorn Energy, Inc. news events land between -1.94% and +2.07% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when ACFN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ACFN's baseline. Nothing else.
Recent ACFN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Acorn’s OmniMetrix Subsidiary Expands Remote Monitoring Customer Base and Dealer Network Through Accretive Acquisition of Gen-Tracker | Press release | GlobeNewswire | -1.35% | +8.65% | |
| Form 8-K ACORN ENERGY, INC. For: Sep 09 | SEC filing · Form 8-K | SEC EDGAR | -1.35% | +8.65% | |
| Acorn Secures 100% Ownership of OmniMetrix Subsidiary via Purchase of Remaining 1% Stake | Press release | GlobeNewswire | -0.33% | -0.36% | |
| Form 8-K ACORN ENERGY, INC. For: Aug 17 | SEC filing · Form 8-K | SEC EDGAR | -0.33% | -0.36% | |
| Acorn’s Q2 EPS of $0.12 Reflects Increasing High-Margin, Recurring Monitoring Revenue; Growth Initiatives Include New Generator Partnership and OMNI360 Launch | Press release | GlobeNewswire | +0.00% | +6.76% | |
| Form 10-Q ACORN ENERGY, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +6.76% | |
| Form 8-K ACORN ENERGY, INC. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +6.76% | |
| Form DEF 14A ACORN ENERGY, INC. For: Aug 03 | SEC filing · Form DEF | SEC EDGAR | -6.13% | -6.69% | |
| Acorn – Provider of Monitoring and Control Solutions for Mission-Critical Assets Hosts Q2 Earnings Call Thursday Aug. 6th at 11am ET | Press release | GlobeNewswire | — | -5.51% | |
| Infrastructure Monitoring and Control Provider Acorn to Webcast Investor Presentation at Planet MicroCap Las Vegas Powered by MicroCapClub Conference Wed. June 17 at 12:30 PT | Press release | GlobeNewswire | -1.16% | -1.98% | |
| Acorn Reports Q1 Revenue of $2.2M with Steady Growth in High Margin, Recurring Remote Monitoring and Control Revenue; Investor Call Today at 11am ET | Press release | GlobeNewswire | -2.02% | -11.42% | |
| Form 10-Q ACORN ENERGY, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -2.02% | -11.42% | |
| Form 8-K ACORN ENERGY, INC. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -2.02% | -11.42% | |
| Acorn, Provider of Monitoring and Control Solutions for Generators, Cell Towers, Data Centers and other Critical Infrastructure, Hosts Q1 Earnings Call Thursday, May 7 at 11am ET | Press release | GlobeNewswire | +0.00% | +0.67% | |
| Form 10-K ACORN ENERGY, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +4.30% | -8.40% | |
| Form 8-K ACORN ENERGY, INC. For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | +4.30% | -8.40% | |
| Remote Monitoring and Control Provider Acorn Reports Higher 2025 Revenue and Operating Income, Benefiting from a 22% Increase in Monitoring Revenue and a Related Gross Margin Increase | Press release | GlobeNewswire | +4.30% | -8.40% | |
| Acorn, Provider of Monitoring and Control Solutions for Generators, Cell Towers, Data Centers and Utilities, Hosts Q4 Earnings Call Thursday, March 5 at 11am ET | Press release | GlobeNewswire | +0.73% | +1.31% | |
| Form 8-K ACORN ENERGY, INC. For: Jan 19 | SEC filing · Form 8-K | SEC EDGAR | -1.84% | -4.71% | |
| Acorn Substantially Expands Infrastructure Asset Management Technology Offerings for Cell Towers, Data Centers and Utilities | Press release | GlobeNewswire | +6.85% | +25.13% | |
| Form 10-Q ACORN ENERGY, INC. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.36% | -21.11% | |
| Form 8-K ACORN ENERGY, INC. For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +1.36% | -21.11% | |
| Remote Monitoring and Control Provider Acorn’s Nine-Month EPS Rose 35.7% to $0.57 Driven by 22% Revenue Increase; Investor Call today at 11am ET | Press release | GlobeNewswire | +1.36% | -21.11% | |
| Acorn, Provider of Monitoring and Control Solutions for Power Generators, Hosts Q3 Earnings Call Thursday Nov. 6th at 11am ET | Press release | GlobeNewswire | — | +1.02% | |
| Form 8-K ACORN ENERGY, INC. For: Sep 17 | SEC filing · Form 8-K | SEC EDGAR | — | -4.12% | |
| Acorn Hosts Annual Meeting in New York City Wednesday, September 17th at 1pm ET; Meeting Also Accessible via Zoom | Press release | GlobeNewswire | +3.88% | +2.66% | |
| Form 10-Q ACORN ENERGY, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -5.75% | |
| Form 8-K ACORN ENERGY, INC. For: Aug 07 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -5.75% | |
| Remote Monitoring and Control Provider Acorn’s Q2’25 EPS of $0.28, Up 155% on 55% Revenue Growth; Investor Call Today at 11 a.m. ET | Press release | GlobeNewswire | +0.00% | -5.75% | |
| Form DEF 14A ACORN ENERGY, INC. For: Aug 06 | SEC filing · Form DEF | SEC EDGAR | -0.17% | -2.24% | |
| Acorn, Provider of Remote Monitoring and Control Solutions for Backup Power Generators, Hosts Q2 Earnings Call on Thur. August 7th at 11am ET | Press release | GlobeNewswire | -2.42% | +2.97% | |
| Form 8-A12B ACORN ENERGY, INC. | SEC filing · Form 8-A12B | SEC EDGAR | +6.58% | +5.55% | |
| Form 8-K ACORN ENERGY, INC. For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | +6.58% | +5.55% | |
| Form CERT ACORN ENERGY, INC. | SEC filing · Form CERT | SEC EDGAR | -2.70% | -2.38% | |
| Remote Monitoring and Control Provider Acorn Approved for Listing on Nasdaq Capital Market | Press release | GlobeNewswire | +6.58% | +5.55% | |
| Acorn, Provider of Monitoring and Controls for Backup Power Generators, to Participate in Investor Summit Virtual Microcap Conference, on June 11th | Press release | ACCESS Newswire | +0.00% | +0.00% | |
| Form 10-Q ACORN ENERGY, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.49% | +2.00% | |
| Form 8-K ACORN ENERGY, INC. For: May 08 | SEC filing · Form 8-K | SEC EDGAR | -0.49% | +2.00% | |
| Remote Monitoring and Control Provider Acorn’s Q1’25 EPS Rose to $0.19 vs. $0.03 on 45% Higher Revenue; Investor Call Today at 11am ET | Press release | GlobeNewswire | -0.49% | +2.00% | |
| Acorn, Provider of Backup Power Generator Monitoring and Control Solutions, Hosts Q1 Earnings Call Thur. May 8th at 11am ET | Press release | GlobeNewswire | +0.00% | +2.65% | |
| Form 8-K ACORN ENERGY, INC. For: Apr 07 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Backup Power Generator Monitoring and Control Provider Acorn to Present at Planet MicroCap Showcase in Las Vegas Wednesday, April 23rd at 11am PT | Press release | GlobeNewswire | — | +0.23% | |
| Form 8-K ACORN ENERGY, INC. For: Mar 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.06% | |
| Acorn’s 2024 Net Income Rises to $2.51 Per Share, Including $1.77 Per Share in Deferred Income Tax Benefit, vs. $0.05 Per Share in 2023, on 36% Revenue Increase; Announces Plan to Pursue Uplisting to Nasdaq Capital Market | Press release | GlobeNewswire | +1.87% | +1.21% | |
| Form 10-K ACORN ENERGY, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.87% | +1.21% | |
| Form 8-K ACORN ENERGY, INC. For: Mar 06 | SEC filing · Form 8-K | SEC EDGAR | +1.87% | +1.21% | |
| Acorn, Provider of Backup Power Generator Monitoring and Control, Hosts Q4 Earnings Call Thur. March 6th at 11am ET | Press release | GlobeNewswire | +0.11% | +2.24% | |
| Form 8-K ACORN ENERGY, INC. For: Jan 06 | SEC filing · Form 8-K | SEC EDGAR | +5.64% | +5.64% | |
| Acorn, Backup Power Generator Monitoring and Control Provider, Presents at Virtual Investor Summit, Microcap Investor Conference on Nov. 21st | Press release | Accesswire | +0.57% | -3.16% | |
| Acorn’s Q3 Revenue Rose 46% to $3.05M and EPS Rose to $0.29 vs. $0.01, Inclusive of the Initial Benefit of 2-Year Contract for Remote Monitoring of Backup Generators for Cell Towers | Press release | GlobeNewswire | +3.88% | +9.49% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ACFN section they belong to.
Where else ACFN is measured.
ACFN earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Amber International Holding Limited - American Depositary Shares (AMBR) | 105 | -0.19% | 34% |
| IEH CORP (IEHC) | 105 | 0.00% | 15% |
| PAZOO INC (PZOO) | 103 | 0.00% | 37% |
| Where Food Comes From, Inc. (WFCF) | 102 | 0.00% | 38% |
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Every name we’ve measured, in one place.
How the numbers are made.
How is Acorn Energy, Inc.'s median reaction calculated?
Every labeled ACFN 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 104 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 ACFN'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 2026-08-31.
Does ACFN'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.