ESS Tech, Inc. (GWH)
Since Nov 22, 2021, ESS Tech, Inc. (GWH) has reported earnings 22 times. On average the shares move ±11.36% post-earnings, with a positive reaction 27.3% of the time. Its largest post-earnings gain was +20.56% (May 12, 2022) and its largest decline was -34.8% (Nov 13, 2025). The next earnings report is predicted for 2026-11-12 (approximate).
Earnings reactions
How GWH moved on each past earnings report.
Earnings Impact
Total Earnings
22
Avg Abs. Movement
±11.36%
Positive %
27.3%
Negative %
72.7%
Historical Earnings Statistics
| Date | Timing | Earnings move | SEC Filing |
|---|---|---|---|
| Aug 11, 2026 | ☽ POST | -10.06% | open_in_new |
| Aug 06, 2026 | ☀ PRE | -8.48% | open_in_new |
| Jun 23, 2026 | ☀ PRE | +2.41% | open_in_new |
| May 07, 2026 | ☽ POST | -31.13% | open_in_new |
Earnings Count
22
Total earnings in dataset
Avg Abs. Movement
±11.36%
Avg % price change on earnings
Institutional ownership
Holdings as of Jun 30, 2026 · SEC 13-F
SEC Filing Types
Recent SEC Filings
10 most recent| Form | Date Filed | View on EDGAR |
|---|---|---|
| S-3 | 20260908 | open_in_new SEC.gov |
| 8-K | 20260903 | open_in_new SEC.gov |
| 4 | 20260824 | open_in_new SEC.gov |
| 4 | 20260824 | open_in_new SEC.gov |
| 424B5 | 20260821 | open_in_new SEC.gov |
| 8-K | 20260821 | open_in_new SEC.gov |
| SCHEDULE 13G/A | 20260814 | open_in_new SEC.gov |
| SCHEDULE 13G/A | 20260813 | open_in_new SEC.gov |
| 10-Q | 20260811 | open_in_new SEC.gov |
| 8-K | 20260811 | open_in_new SEC.gov |
Frequently asked about GWH earnings
When does ESS Tech, Inc. report earnings next? expand_more
ESS Tech, Inc. (GWH)'s next earnings date is approximate for 2026-11-12. This is a prediction based on its historical quarterly reporting pattern, not a company-confirmed date.
How much does GWH stock move after earnings? expand_more
Over 22 reports, GWH has moved an average of ±11.36% the session after earnings, closing higher 27.3% of the time.
What was GWH's biggest post-earnings move? expand_more
GWH's largest post-earnings gain on record was +20.56% on May 12, 2022, and its largest decline was -34.8% on Nov 13, 2025.
Where can I find ESS Tech, Inc.'s SEC filings? expand_more
All of ESS Tech, Inc.'s SEC filings — 10-K, 10-Q, 8-K and more — are listed in the SEC filings section on this page, each linking to the original document on SEC.gov.
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