EnerSys (ENS)
ENS moved a median of +0.14% 30 minutes after news, and -0.31% by the close. How ENS actually reacts to news — the realized, point-in-time move the market made, measured across 517 labeled events over the last three years with zero look-ahead.
ENS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 44% | 513 |
| 30-min | +0.14% | 57% | 517 |
| 60-min | -0.01% | 50% | 517 |
| to close | -0.31% | 48% | 514 |
| Middle 50% of ENS reactions | -0.83% to +0.62% |
|---|---|
| Median reaction (30-min) | +0.14% |
| Measured reactions | 517 |
Half of all EnerSys news events land between -0.83% and +0.62% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ENS reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 23 | +0.13% | 57% | -0.42% |
| Analyst downgrades | 23 | -0.24% | 26% | -0.30% |
| Rating reiterations | 30 | -0.06% | 43% | -0.56% |
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 ENS ranks against every other measured name →
That’s how ENS usually reacts — get an email when it moves on news →Email me when ENS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ENS's baseline. Nothing else.
Recent ENS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| EnerSys Appoints Navi Grewal as Chief Digital, AI and Information Officer | Press release | Business Wire | -0.74% | +3.34% | |
| Form 8-K EnerSys For: Oct 14 | SEC filing · Form 8-K | SEC EDGAR | -0.74% | +3.34% | |
| EnerSys Receives 5.0 Diamond Rating for Alpha® XM Edge Power System in 2026 Diamond Technology Reviews | Press release | Business Wire | -0.01% | +3.40% | |
| EnerSys Announces Development Progress on Alpha® XM Edge Power System for Cable Broadband Networks | Press release | Business Wire | -0.64% | +0.80% | |
| EnerSys Strengthens High-Efficiency Broadband DC Power Systems with New Cordex® HP 48V-5.0kW Rectifier | Press release | Business Wire | -0.64% | +0.80% | |
| EnerSys to Participate in Jefferies Renewables, Clean Energy, & Construction Conference | Press release | Business Wire | -0.08% | -0.85% | |
| EnerSys Announces 10% Dividend Increase to $0.2875 per Share for the Second Quarter of Fiscal Year 2027 | Press release | Business Wire | +1.46% | -6.42% | |
| EnerSys Reports First Quarter Fiscal 2027 Results | Press release | Business Wire | +1.46% | -6.42% | |
| Form 10-Q EnerSys For: Jul 05 | SEC filing · Form 10-Q | SEC EDGAR | +1.46% | -6.42% | |
| Form 8-K EnerSys For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +1.46% | -6.42% | |
| Form 8-K EnerSys For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -0.28% | +1.21% | |
| EnerSys Refines Plans for Defense-Focused Lithium Cell Manufacturing Facility with DOE Support | Press release | Business Wire | -0.91% | -3.88% | |
| Form 8-K EnerSys For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | -0.91% | -3.88% | |
| EnerSys Announces Date of First Quarter Fiscal 2027 Financial Results Release and Conference Call | Press release | Business Wire | +0.86% | +0.78% | |
| Form ARS EnerSys For: Mar 31 | SEC filing · Form ARS | SEC EDGAR | +1.36% | +2.77% | |
| Form DEF 14A EnerSys For: Aug 06 | SEC filing · Form DEF | SEC EDGAR | +1.36% | +2.77% | |
| Form DEFA14A EnerSys | SEC filing · Form DEFA14A | SEC EDGAR | +1.36% | +2.77% | |
| EnerSys Hosts 2026 Investor Day | Press release | Business Wire | +0.86% | -1.23% | |
| EnerSys Introduces DataSafe Noir™ Lithium System for Data Center Power | Press release | Business Wire | +0.37% | -2.20% | |
| Form SD EnerSys | SEC filing · Form SD | SEC EDGAR | +1.78% | +1.95% | |
| EnerSys Announces Segment Realignment | Press release | Business Wire | -0.61% | -1.52% | |
| Form 8-K EnerSys For: May 28 | SEC filing · Form 8-K | SEC EDGAR | -0.61% | -1.52% | |
| EnerSys Announces Dividend of $0.2625 per Share for the First Quarter of Fiscal Year 2027 | Press release | Business Wire | -0.26% | +1.43% | |
| EnerSys Reports Fourth Quarter and Full Year Fiscal 2026 Results | Press release | Business Wire | -0.26% | +1.43% | |
| Form 10-K EnerSys For: Mar 31 | SEC filing · Form 10-K | SEC EDGAR | -0.26% | +1.43% | |
| Form 8-K EnerSys For: May 20 | SEC filing · Form 8-K | SEC EDGAR | -0.26% | +1.43% | |
| EnerSys Launches AlphaCell™ 4.0HP+ Battery to Improve Replacement Interval Stability in Outdoor Communications Networks | Press release | Business Wire | -0.03% | -0.75% | |
| EnerSys Announces Date of Fourth Quarter and Full Year Fiscal 2026 Financial Results Release and Conference Call | Press release | Business Wire | -0.14% | +1.65% | |
| EnerSys Announces Participation in the Oppenheimer 21st Annual Industrial Growth Conference on May 6, 2026 | Press release | Business Wire | +0.41% | +1.97% | |
| EnerSys to Host 2026 Investor Day | Press release | Business Wire | +0.03% | +1.02% | |
| EnerSys Announces Strategic Manufacturing Restructuring: Tijuana, Mexico Facility Closure and Optimization of U.S. Manufacturing Footprint | Press release | Business Wire | +0.36% | -3.18% | |
| Form 8-K EnerSys For: Mar 25 | SEC filing · Form 8-K | SEC EDGAR | +0.36% | -3.18% | |
| EnerSys to Participate in Jefferies Fireside Chat | Press release | Business Wire | -0.42% | -1.34% | |
| EnerSys to Present at the 38th Annual ROTH Conference | Press release | Business Wire | -3.07% | +0.16% | |
| EnerSys Announces Dividend of $0.2625 per Share for the Fourth Quarter of Fiscal Year 2026 | Press release | Business Wire | -1.54% | -4.31% | |
| EnerSys Reports Third Quarter Fiscal Year 2026 Results | Press release | Business Wire | -1.54% | -4.31% | |
| Form 10-Q EnerSys For: Dec 28 | SEC filing · Form 10-Q | SEC EDGAR | -1.54% | -4.31% | |
| Form 8-K EnerSys For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | -1.54% | -4.31% | |
| EnerSys Announces Date of Third Quarter Fiscal 2026 Financial Results Release and Conference Call | Press release | Business Wire | +0.80% | +1.52% | |
| Form 8-K EnerSys For: Dec 15 | SEC filing · Form 8-K | SEC EDGAR | +0.28% | -1.91% | |
| EnerSys Announces Dividend of $0.2625 per Share for the Third Quarter of Fiscal Year 2026 | Press release | Business Wire | +2.25% | -4.04% | |
| EnerSys Reports Second Quarter Fiscal Year 2026 Results | Press release | Business Wire | +2.25% | -4.04% | |
| Form 10-Q EnerSys For: Sep 28 | SEC filing · Form 10-Q | SEC EDGAR | +2.25% | -4.04% | |
| Form 8-K EnerSys For: Nov 05 | SEC filing · Form 8-K | SEC EDGAR | +2.25% | -4.04% | |
| EnerSys Publishes FY2025 Sustainability Report Showcasing Energy Savings, Operational Efficiencies and Early European Sustainability Reporting Standards (ESRS) Disclosures | Press release | Business Wire | -0.10% | +1.18% | |
| EnerSys Announces Date of Second Quarter Fiscal 2026 Financial Results Release and Conference Call | Press release | Business Wire | -0.59% | +0.60% | |
| Form 8-K EnerSys For: Sep 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.96% | |
| EnerSys Receives Refund of $137 Million Related to IRC Section 45X Tax Credits | Press release | Business Wire | -0.46% | -0.73% | |
| Montel Williams--Dedicated Veteran Advocate--Leads U.S. Veterans Magazine's August 2025 Issue Featuring Top Veteran Employers, Franchises & Yellow Ribbon Schools | Press release | PR Web | -0.03% | — | |
| EnerSys Announces $1 Billion Increase to Stock Repurchase Authorization and 9% Dividend Increase | Press release | Business Wire | -2.98% | -0.88% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ENS section they belong to.
Where else ENS is measured.
ENS earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| TTM Technologies, Inc. (TTMI) | 521 | +0.01% | 50% |
| Twilio Inc. Class A (TWLO) | 518 | +0.11% | 52% |
| Fortive Corporation (FTV) | 517 | +0.04% | 52% |
| RingCentral, Inc. Class A (RNG) | 514 | +0.23% | 55% |
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 EnerSys's median reaction calculated?
Every labeled ENS 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 517 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. 57% of ENS'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 ENS'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.