Ocean Power Technologies, Inc. (OPTT)
OPTT moved a median of -0.68% 30 minutes after news, and -1.51% by the close. How OPTT actually reacts to news — the realized, point-in-time move the market made, measured across 453 labeled events over the last three years with zero look-ahead.
OPTT’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.06% | 44% | 448 |
| 30-min | -0.68% | 41% | 453 |
| 60-min | -0.45% | 44% | 453 |
| to close | -1.51% | 39% | 450 |
| Middle 50% of OPTT reactions | -3.05% to +1.66% |
|---|---|
| Median reaction (30-min) | -0.68% |
| Measured reactions | 453 |
Half of all Ocean Power Technologies, Inc. news events land between -3.05% and +1.66% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when OPTT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to OPTT's baseline. Nothing else.
Recent OPTT events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form EFFECT Ocean Power Technologies | SEC filing · Form EFFECT | SEC EDGAR | +0.23% | +5.82% | |
| Ocean Power Technologies Announces PowerBuoy® Mini Selection for U.S. Government Operational Evaluation | Press release | GlobeNewswire | +0.13% | -15.15% | |
| Naval Postgraduate School Orders WAM-V 8 for Littoral Sensing and Autonomous Systems Research | Press release | GlobeNewswire | -1.88% | -8.10% | |
| Form 8-K Ocean Power Technologies For: Sep 30 | SEC filing · Form 8-K | SEC EDGAR | +4.54% | -12.60% | |
| Form 8-K/A Ocean Power Technologies For: Sep 30 | SEC filing · Form 8-K | SEC EDGAR | -1.88% | -8.10% | |
| Ocean Power Technologies Demonstrates Offshore Deployment of Greensea IQ Bayonet 150 from Modified WAM-V 16 | Press release | GlobeNewswire | +5.08% | +10.42% | |
| Form PRE 14A Ocean Power Technologies For: Oct 02 | SEC filing · Form PRE | SEC EDGAR | -2.42% | -5.94% | |
| Form 8-K Ocean Power Technologies For: Sep 24 | SEC filing · Form 8-K | SEC EDGAR | +0.51% | -14.80% | |
| Form S-1/A Ocean Power Technologies | SEC filing · Form S-1 | SEC EDGAR | +0.51% | -14.80% | |
| Ocean Power Technologies Operates Three WAM-V Classes Across Five Mission Sets at REPMUS 2026 | Press release | GlobeNewswire | +1.73% | +5.50% | |
| Ocean Power Technologies Advances WAM-V® Development Through U.S. Army Surf-Zone Testing | Press release | GlobeNewswire | +3.65% | +9.90% | |
| Form 8-K Ocean Power Technologies For: Sep 14 | SEC filing · Form 8-K | SEC EDGAR | +3.65% | +9.90% | |
| Form 10-Q Ocean Power Technologies For: Jul 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -19.29% | |
| Ocean Power Technologies Aligns Leadership Team to Accelerate Commercial Execution and Backlog Conversion | Press release | GlobeNewswire | -12.23% | -15.48% | |
| Ocean Power Technologies Announces First Quarter Fiscal 2027 Results | Press release | GlobeNewswire | +0.00% | -19.29% | |
| Form 8-K Ocean Power Technologies For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | -9.08% | -22.60% | |
| Ocean Power Technologies Announces Reverse Stock Split | Press release | GlobeNewswire | -9.08% | -22.60% | |
| Ocean Power Technologies Begins U.S. Army Corps of Engineers Surf-Zone Demonstration | Press release | GlobeNewswire | +1.44% | -0.94% | |
| Form S-1 Ocean Power Technologies | SEC filing · Form S-1 | SEC EDGAR | +1.06% | +1.00% | |
| Ocean Power Technologies Selects Palantir Foundry to Accelerate Growth in Autonomous Maritime Operations | Press release | GlobeNewswire | -1.76% | +14.29% | |
| Form S-1 Ocean Power Technologies | SEC filing · Form S-1 | SEC EDGAR | -0.86% | -0.49% | |
| Form 8-K Ocean Power Technologies For: Aug 19 | SEC filing · Form 8-K | SEC EDGAR | -0.65% | -2.42% | |
| Ocean Power Technologies, Inc. to Participate in Water Tower Research Fireside Chat on Tuesday, August 25, 2026 | Press release | GlobeNewswire | +2.54% | +2.70% | |
| Ocean Power Technologies, Inc. Provides Required Disclosure | Press release | GlobeNewswire | -0.65% | -2.42% | |
| Form 8-K Ocean Power Technologies For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | +0.36% | -2.53% | |
| Ocean Power Technologies, Inc. Receives Notice from NYSE American Regarding Late Filing of Annual Report on Form 10-K | Press release | GlobeNewswire | +0.36% | -2.53% | |
| Form 10-K Ocean Power Technologies For: Apr 30 | SEC filing · Form 10-K | SEC EDGAR | +0.36% | -2.53% | |
| Ocean Power Technologies Provides Update to Previously Announced Preliminary Fiscal 2026 Financial Results | Press release | GlobeNewswire | +0.36% | -2.53% | |
| Form 8-K Ocean Power Technologies For: Aug 17 | SEC filing · Form 8-K | SEC EDGAR | -2.94% | -4.57% | |
| Form DEFA14A Ocean Power Technologies | SEC filing · Form DEFA14A | SEC EDGAR | -2.94% | -4.57% | |
| Ocean Power Technologies Initiates Review of Strategic Alternatives | Press release | GlobeNewswire | +2.42% | -4.59% | |
| Form 8-K Ocean Power Technologies For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -0.61% | -1.89% | |
| Ocean Power Technologies Selected for Participation in $40 Million U.S. Navy Project for Autonomous Ocean Mapping | Press release | GlobeNewswire | +5.03% | +4.05% | |
| Form DEF 14A Ocean Power Technologies For: Aug 03 | SEC filing · Form DEF | SEC EDGAR | -0.43% | -2.98% | |
| Ocean Power Technologies Announces Delivery of WAM-V® Maritime Drone to Stevens Institute of Technology | Press release | GlobeNewswire | +1.65% | +0.37% | |
| Form NT 10-K Ocean Power Technologies For: Apr 30 | SEC filing · Form NT | SEC EDGAR | +1.65% | +0.37% | |
| Ocean Power Technologies Strengthens Defense Contracting Readiness with CMMC Level 2 Compliance | Press release | GlobeNewswire | -1.20% | +2.40% | |
| Form 8-K Ocean Power Technologies For: Jul 27 | SEC filing · Form 8-K | SEC EDGAR | -3.57% | +7.43% | |
| Form 8-K Ocean Power Technologies For: Jul 20 | SEC filing · Form 8-K | SEC EDGAR | -5.22% | -16.67% | |
| Form PRE 14A Ocean Power Technologies For: Jul 23 | SEC filing · Form PRE | SEC EDGAR | -5.22% | -16.67% | |
| Ocean Power Technologies Acquires Strategic Subsea Technology to Expand Operational Infrastructure Supporting Maritime Dominance | Press release | GlobeNewswire | -5.22% | -16.67% | |
| Ocean Power Technologies Announces Fourth Quarter and Full Year Fiscal 2026 Results | Press release | GlobeNewswire | -5.22% | -16.67% | |
| Ocean Power Technologies to Announce Fourth Quarter and Fiscal Results on July 23, 2026 | Press release | GlobeNewswire | -0.06% | +2.06% | |
| Ocean Power Technologies Selected by U.S. Government for Further Assessment of its Maritime Drones | Press release | GlobeNewswire | -1.27% | -0.30% | |
| Ocean Power Technologies Expands International Maritime Security Engagements Across Europe | Press release | GlobeNewswire | +0.27% | +5.10% | |
| Form 8-A12B/A Ocean Power Technologies | SEC filing · Form 8-A12B | SEC EDGAR | -0.72% | +2.71% | |
| Form 8-K Ocean Power Technologies For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | -0.72% | +2.71% | |
| OPT Extends Its Section 382 Tax Benefits Preservation Plan | Press release | GlobeNewswire | -0.72% | +2.71% | |
| Ocean Power Technologies Announces Deployment of PowerBuoy® System for Rutgers University and New Maritime Drone Order from Stevens Institute of Technology | Press release | GlobeNewswire | -0.79% | -7.14% | |
| Form 8-K Ocean Power Technologies For: Jun 08 | SEC filing · Form 8-K | SEC EDGAR | +2.84% | -1.64% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the OPTT section they belong to.
Where else OPTT is measured.
OPTT earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ExlService Holdings, Inc. (EXLS) | 454 | -0.14% | 42% |
| Charah Solutions, Inc. (CHRA) | 453 | +0.00% | 50% |
| VOLT INFORMATION SCIENCES INC (VISI) | 453 | 0.00% | 39% |
| ON TRACK INNOVATIONS (OTIV) | 452 | 0.00% | 43% |
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 Ocean Power Technologies, Inc.'s median reaction calculated?
Every labeled OPTT 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 453 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. 41% of OPTT'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 OPTT'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.