NYSE$GWH
Ess Tech Inc · Q1 2026 earnings
Q1 2026 earnings · · Investor relations
Briefing
ESS Tech reported Q1 2026 total revenue of $128K and a net loss of $15.9M, with diluted EPS of $(0.54).
Q1 2026 total revenue was $0.13 million versus $0.60 million as iron-flow battery deployments remained early-stage. Net loss was $15.9 million (diluted EPS $(0.54)) versus $18.0 million; R&D and manufacturing scale-up costs continued ahead of commercial volume.
- Total revenue $0.13M (pre-commercial scale).
- Net loss $(15.9)M; diluted EPS $(0.54).
- Long-duration storage pilot projects in progress.
- Cash runway and project financing critical.
Headline financials
Revenue & EPS history
ESS Tech · Revenue · Quarterly
$128K
Revenue by segment
ESS Tech · $1 total across 1 segment · Q1 2023
- Revenue - Related Parties$1—100.0%
Forward guidance
Energy storage company discusses project pipeline, manufacturing yield, and capital raises.
Tailwinds
- Loss narrowed slightly year over year.
- Strategic utility and microgrid partnerships.
Headwinds
- Minimal revenue; pre-commercial stage.
- Capital intensity of battery manufacturing scale-up.
Historical earnings impact
How earnings announcements have historically affected this stock's price.
Avg. return before/after earnings
Based on 20 quarterly earnings reports · overlaid with Q1 2026
-4.1%
Avg return
Earnings day
-9.7%
Avg return
5 days after
-16.4%
Avg return
30 days after
19%
4 / 21 earnings
Positive
+31.3%
Q1 2022
Best reaction
-34.5%
Q3 2025
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q1 2026 | -2.6% | -33.1% | -21.8% | |
| Q4 2025 | -4.4% | -3.7% | -11.0% | |
| Q3 2025 | -34.5% | -40.7% | -50.8% | |
| Q1 2025 | -15.2% | -28.1% | -58.6% | |
| Q4 2024 | -12.6% | -27.0% | -27.6% | |
| Q3 2024 | -19.5% | -46.0% | -44.1% | |
| Q2 2024 | -12.9% | -16.5% | -45.8% | |
| Q1 2024 | -10.9% | -16.0% | -18.5% | |
| Q4 2023 | -5.8% | -19.5% | -17.8% | |
| Q3 2023 | -7.2% | -11.2% | -6.4% | |
| Q2 2023 | -4.1% | -20.9% | -11.0% | |
| Q1 2023 | +13.8% | +0.0% | +22.9% | |
| Q4 2022 | -8.2% | -13.7% | -23.6% | |
| Q3 2022 | -4.9% | -9.3% | -13.1% | |
| Q2 2022 | +13.5% | +18.3% | -6.9% | |
| Q1 2022 | +31.3% | +46.4% | -14.1% | |
| Q4 2021 | +12.1% | +25.6% | +43.2% | |
| Q2 2021 | -12.5% | -8.9% | -27.6% | |
| Q3 2021 | -1.1% | -0.3% | -13.1% | |
| Q1 2021 | +0.0% | +0.5% | +0.7% | |
| Q4 2020 | -0.9% | -0.4% | -0.1% | |
| Q3 2020 | — | — | — | |
| Q2 2020 | — | — | — | |
| Q1 2020 | — | — | — |
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