ESS Tech, Inc.

GWH

$0.34

+3.78%

2026-09-03 16:00:02 EDT+$0.01

Industrials

Electrical Equipment & Parts

NYSE

Active Trading

ESS Tech, Inc. is a global energy storage enterprise focused on developing and manufacturing iron flow batteries for commercial and large-scale utility ...

Price Action of GWH

$0.34

+3.78%+$0.01

High—

Low—

52W High-96.9%

Rel. vol—

Interval

Range3.2h

Volume—SMA5SMA10

—

ESS Tech, Inc. (NYSE: GWH) is a long-duration energy storage company built around iron flow battery technology, targeting customers that need dependable energy availability for hours beyond the typical short-duration range. Founded in 2011 and headquartered in Wilsonville, Oregon, the company’s stated focus is environmentally sustainable, low-cost long-duration storage that ...ESS Tech, Inc. (NYSE: GWH) is a long-duration energy storage company built around iron flow battery technology, targeting customers that need dependable energy availability for hours beyond the typical short-duration range. Founded in 2011 and headquartered in Wilsonville, Oregon, the company’s stated focus is environmentally sustainable, low-cost long-duration storage that supports decarbonization by improving the integration of renewable energy and strengthening grid reliability. From a business perspective, ESS Tech participates in the energy storage value chain by designing, manufacturing, and deploying battery energy storage solutions rather than only selling components. Its offerings are commonly described through two main product lines: the Energy Warehouse and the Energy Center. The Energy Warehouse is intended for behind-the-meter deployments where businesses, campuses, industrial facilities, and other commercial users can manage energy on-site. The Energy Center is positioned for front-of-the-meter, utility-scale power use—supporting grid services and large-scale long-duration storage needs. Product-wise, iron flow batteries are modular electrochemical systems in which energy capacity is tied to the amount of active materials stored in tanks and the power output is governed by cell stack performance. This architecture is often discussed in industry terms as enabling scalability in energy capacity and potentially offering advantages for long-duration use cases versus some shorter-duration lithium-based designs. While specific BOM and unit economics are not detailed in the provided materials, ESS’s financial performance indicators in the dataset suggest that commercialization and ramp-up activities are still important drivers for the company; battery deployments typically involve substantial engineering, manufacturing readiness, procurement, commissioning, and project development costs. Financially, the provided snapshot shows negative profitability metrics (e.g., negative return measures and cash-flow-related yields), which is consistent with many hardware-and-deployment-intensive clean energy businesses during growth and scale-up phases. In such models, costs can include R&D and sustaining engineering, manufacturing and supply chain ramp, power electronics and system integration, project development, and working-capital needs tied to customer contracts and deployment schedules. Key leadership includes CEO Drew Buckley, and the company has continued to evolve its executive and capital-market approach as it works toward broader deployment of its long-duration storage systems. Overall, ESS Tech’s business goal is to deliver scalable long-duration battery storage that can provide flexibility to energy systems challenged by intermittency, peak demand, and the need for more resilient power supply.ExpandCollapse

Founded

2011

Employees

CEO

Drew Buckley

Full Name

ESS Tech, Inc.

Sector

Industrials

Industry

Electrical Equipment & Parts

ROE

-1934.84%

Market Cap

$0.01B

Current Ratio

0.68

WACC

35.74%

ROIC

-572.57%

Contact Information

https://essinc.com

855 423 9920

Building 83, Wilsonville, OR 97070

Key Metrics of GWH

Snapshot

Latest / TTM · 6 periods

Market Cap

$9.91M

ROCE

-440.1%

EV / EBITDA

-0.04x

-224.9% YoY

FCF Yield

-458.2%

-262.6% YoY

Cash Conversion Cycle

-15.3d

Current Ratio

0.68

Quick take

TTM —

Current ratio below 1.0

Negative working capital

Financial Highlights of GWH

Profitability trend

Latest / TTM · 6 periods

Gross Margin

2942.0%

Net Margin

5593.3%

P/E Ratio

-0.12x

n/a

Debt / Equity

-1.11

n/a

Current Ratio

0.68

Dividend Yield

0.0%

Understanding

TTM —

Current ratio below 1.0

Interest coverage is weak

Calendar of GWH

Upcoming

Sep 30, 2026In 26 days
Q3 FY2026 · Estimated results
Est. EPS $-0.33 · Revenue $100000.00 · 1 analysts
Dec 30, 2026
Q4 FY2026 · Estimated results
Est. EPS $-0.21 · Revenue $100000.00 · 1 analysts
Dec 31, 2026
FY2026 · Estimated annual results
Est. EPS $-1.42 · Revenue $401000.00 · 1 analysts
Mar 30, 2027
Q1 FY2027 · Estimated results
Est. EPS $-0.13 · Revenue $150000.00 · 1 analysts

Recent history

Aug 11, 2026
Q2 FY2026 · Results reported
EPS $-0.46 · Revenue $69000.00
View filing
May 7, 2026
Q1 FY2026 · Results reported
EPS $-0.54 · Revenue $128000.00
View filing
Mar 5, 2026
FY2025 · Annual results
EPS $-4.34 · Revenue $1.58M
View filing
Nov 13, 2025
Q3 FY2025 · Results reported
EPS $-0.73 · Revenue $214000.00
View filing
Jun 30, 2025
Q2 FY2025 · Results reported
EPS $-0.90 · Revenue $2.36M
Mar 31, 2025
Q1 FY2025 · Results reported
EPS $-1.50 · Revenue $599000.00

Financial Statements of GWH

5Y Trend (Revenue, Earnings, FCF)

Metric	Latest	YoYYoY means Year-over-Year. It compares the latest annual value with the previous annual value to show long-term trend strength.	QoQQoQ means Quarter-over-Quarter. It compares the latest quarter with the immediately previous quarter to show short-term momentum changes.
RevenueThe total money that came through the front door from selling things, before paying a single bill. Think of it as the grand total of every credit card swipe from customers. (YoY compares this year to last year's performance, while QoQ compares the current three months to the previous three).	$1.6M	-74.9%	-46.1%
Net IncomeThe absolute bottom line. If the company paid every single supplier, employee, banker, and tax collector, this is the actual money left in their pocket at the end of the day.	$-63.4M	+26.4%	+2.3%
Gross MarginThe basic markup. If they sell a $100 pair of sneakers, this percentage tells you how much of that price tag is profit right after paying for the rubber and shoelaces, but before paying for things like store rent or TV commercials.	-2110.7%	-192.9%	-95.7%
Operating MarginThe 'day job' efficiency score. Out of every dollar a customer spends, this shows how many cents the company keeps after making the product AND paying for all the everyday corporate overhead (like salaries, marketing, and keeping the lights on).	-3518.6%	-146.7%	-103.7%
Net MarginThe final take-home percentage. When you strip away every conceivable cost, tax, and interest payment, this is the exact number of cents the company truly gets to keep from every dollar in sales.	-4007.6%	-192.6%	-81.2%
Free Cash FlowThe holy grail of corporate cash. It's the spendable, physical money left over after the business pays for its daily operations AND buys the big, expensive upgrades (like new factories or servers) it needs to survive. This is the 'free' money they can use to pay dividends or buy back stock.	$-53.7M	+32.5%	+34.4%
FCF MarginThe ultimate cash conversion rate. It shows how good the company is at turning regular sales directly into cold, hard, spendable cash. A high percentage means the business is an absolute cash-printing machine.	-3390.5%	-168.4%	-21.8%
Debt / EquityThe financial risk gauge. It compares how much of the company's empire was built using borrowed money (loans) versus the owners' own money (shareholders). A high number means they are heavily leveraged and playing a riskier game; a low number means they are playing it safe.	137.9%	+2254.8%	-184.0%
Current RatioThe 12-month survival check. It simply compares the cash they have right now (plus things they can quickly turn into cash) against the immediate bills they absolutely must pay this year. A score above 1 means they have enough in the wallet to cover the upcoming bills without panicking.	1.04x	-33.9%	-36.9%
Total AssetsThe absolute size of the company's empire. It bundles together absolutely everything of value they own—from the cash in the register and the inventory in the warehouse, to the software patents in the vault and the factories on the ground.	$51.2M	-28.7%	-33.1%

Actual vs Estimate

A Dec 31Q Jun 30

Metric	Annual (A vs E)	Annual Surprise	Quarter (A vs E)	Quarter Surprise
EPS Surprise	-4.34 vs -3.89	-11.6%	-0.46 vs -0.44	-4.5%
Revenue Surprise	$1.6M vs $3.1M	-48.9%	$69000 vs $100000	-31.0%

Insider Transactions of GWH

Acquisitions (A)

Since May 22, 2026

Disposals (D)

Since May 22, 2026

Monthly shares of acquisitions/disposals with close price trend (shared daily price source)

Insider Trading Snapshot

Date	Executive	Title	Security	Side	Shares	Price
Aug 21, 2026	Suhadolnik Kate Eileen	officer: Chief Financial Officer	Common Stock	D	3,927	$0.40
Aug 21, 2026	Goodman Kelly F.	officer: SEE REMARKS	Common Stock	D	5,400	$0.40
Jun 4, 2026	Buckley Drew P	director, officer: CEO	Common Stock	A	25,000	$1.03
May 29, 2026	WELLMAN ALEXI	director	Common Stock	A	13,513	—
May 29, 2026	Quarls Harry	director	Common Stock	A	13,513	—

Earnings Call Transcript of GWH

1 transcript segments

Q2 2026

Unknown Speaker

Operator: Good afternoon, and welcome to the ESS Tech Second Quarter 2026 Financial Results Conference Call. [Operator Instructions] During today's call, ESS may make statements relating to its future financial performance, anticipated growth strategies and trends in its business. These may include statements regarding: the company's sodium-ion strategy and the early-stage opportunities approaching $1 billion identified for its sodium-ion solutions; the time line for development and market rollout of the Bridge system; the letter of intent with Juniper Energy and the potential deployment of 500-megawatt hours or more of energy storage systems; the letter of intent with Alsym Energy; the timing of the company's projects; the company's plan to streamline its Wilsonville operations and reduce expenses and cash burn; statements regarding the proposed business combination, including the timing, terms and potential benefits; the company's 2026 outlook and beyond; its cash position; the market opportunity; the potential and capabilities of the company's technology and platform; and its ability to execute on Project New Horizon, including the timing of manufacturing and delivery. These statements constitute forward-looking statements within the meaning of federal security laws and are based on management's current expectations and beliefs concerning future developments. These forward-looking statements involve a number of risks, uncertainties and assumptions, including, but not limited to: barriers the company faces in producing its energy storage products; its products being in the early stage of commercialization; aspects of technology not having been fully field tested; the company's dependence on third-party suppliers; delays, disruptions or quality control problems in manufacturing operations; the company's ability to control its costs and achieve its cost reduction strategy; its history of losses and substantial doubt regarding its ability to continue as a going concern; its ability to raise capital in the near future; the non-binding nature of LOIs; risks related to the proposed business combination, including the non-binding nature of the letter of intent; the party's ability to complete due diligence and to negotiate and execute definitive agreements and the realization of benefits; the market opportunity for ESS' production; its ability to satisfy the continued listing standards of the New York Stock Exchange; and other risks and uncertainties described more fully in the company's filings with the U.S. Securities and Exchange Commission, including its annual report on Form 10-K filed on March 5, 2026, its quarterly report on Form 10-Q for the quarter ended June 30, 2026 and its current reports. Actual results may differ materially from those expressed in or implied by forward-looking statements made on this call. Except as required by law, ESS undertakes no obligation to update or revise any forward-looking statements. In today's discussion, …

Leadership Team of GWH

7 executives

Name	Title	Compensation	Gender	Year Born	Status
Drew Buckley	Chief Executive Officer & Director	USD 942,056	Male	1984	Active
Kelly F. Goodman	Chief Strategy Officer, General Counsel & Corporate Secretary	USD 794,760	Female	1980	Active
Kate Suhadolnik	Chief Financial Officer	USD 783,997	Female	1989	Active
Randall Selesky	Chief Commercial Officer	—	Male	—	Active
Brian Lisiecki	Interim COO & Chief Information Officer	—	Male	—	Active
Erik Bylin	Head of Investor Relations	—	—	—	Active
Paul Notti	Vice President of Sales & Business Development	—	Male	—	Active

Recent News of GWH

Seeking Alpha8/11/2026Neutral

ESS Tech, Inc. (GWH) Q2 2026 Earnings Call Transcript

Zacks Investment Research8/11/2026Neutral

ESS Tech, Inc. (GWH) Reports Q2 Loss, Lags Revenue Estimates

ESS Tech, Inc. (GWH) came out with a quarterly loss of $0.46 per share versus the Zacks Consensus Estimate of a loss of $0.44. This compares to a loss of $0.9 per share a year ago.

Business Wire7/8/2026Neutral

ESS Introduces Bridge™, a Modular Sodium-Ion Battery Energy Storage System for Grid-Scale, Data Center, and Commercial Applications

WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Introduces Bridge™, a Modular Sodium-Ion Battery Energy Storage System for Grid-Scale, Data Center, and Commercial Applications.

Business Wire6/29/2026Neutral

ESS Added to Russell Microcap® Index

WILSONVILLE, Ore.--(BUSINESS WIRE)--ESS Added to Russell Microcap® Index.

GuruFocus6/23/2026Neutral

ESS to Accelerate Sodium-Ion Battery Energy Storage System Development Following Surging Customer Interest

ESS Tech, Inc. (NYSE: GWH) (âESSâ or the âcompanyâ), a leading provider of non-lithium energy storage solutions, today announced strong early customer e

Historical Employee Count of GWH

Current

Change

-74.17%

Minimum

Maximum

271

Recent Filings

Report Date	Employees	Form Type	Filing Date	SEC Filing
Dec 31, 2025	62	10-K	Mar 5, 2026	View
Dec 31, 2024	240	10-K	Mar 31, 2025	View
Dec 31, 2023	231	10-K	Mar 14, 2024	View
Dec 31, 2022	271	10-K	Mar 2, 2023	View
Dec 31, 2021	160	10-K	Mar 4, 2022	View

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ESS Tech, Inc.