ESS Tech, Inc.

GWHNYSE • USD
ThemeEnergy Storage & Batteries›Grid-Scale Energy Storage
0.76 USD
↘ 0.08 (9.74%)AT CLOSE (11:59 AM EDT)
0.78
↗ 0.02 (2.37%)
POST MARKET (AS OF 08:00 PM EDT)
Post Market
AS OF 08:00 PM EDT
0.78
↗ 0.02 (2.37%)
🔴Market: CLOSED

ESS Tech, Inc. (GWH) is currently trading at $0.78. The stock presents a bearish profile across the board: technical indicators signal "Strong Sell" and our fundamental models agree with a "Sell" rating. This is driven by a concerning Altman Z-Score in the distress zone, a weak Piotroski F-Score of 1/9, negative Return on Equity, a bearish Death Cross on the long-term moving averages and bearish long-term moving average alignment. On valuation, GWH trades roughly in line with sector averages — neither particularly cheap nor expensive.

Technical & fundamental data as of Jun 25, 2026.

Open?$0.85
High?$0.87
Low?$0.76
Prev. Close?$0.85
Volume?373.4K
Avg. Volume?700.2K
VWAP?$0.79
Rel. Volume?0.53x
Bid / Ask
Bid?$0.76 × 1.6K
Ask?$0.80 × 1.0K
Spread?$0.04
Midpoint?$0.78
Valuation & Ratios
Market Cap?25.0M
Shares Out?29.4M
Float?24.0M
Float %?81.6%
P/E Ratio?N/A
P/B Ratio?2.64
EPS?-$1.27
Dividend?0.00%
Ex-Dividend?N/A
News
Profile
ESS Tech Inc is a long-duration energy storage company specializing in iron flow battery technology. It develops and manufactures long-duration energy storage systems based on iron flow battery technology. The company's batteries use earth-abundant materials, including iron, salt, and water, and are designed for high cycle life and recyclability. It operates as a single business operating segment, which includes all activities related to the design, engineering, and manufacturing of the company's long duration energy storage products. The company's revenue is derived from the sale of its energy storage products and from service contracts.
Themes
Energy Storage & Batteries›Grid-Scale Energy StorageClean Energy›Smart Grid & Electrification
Employees
62
Market Cap
24.9M
Industry
MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES
Website
www.essinc.com
Listed
2021-10-11
Address
26440 SW PARKWAY AVE.
WILSONVILLE, OR 97070
Phone: (855) 423-9920
Technical OutlookStrong Sell
Strong SellNeutralStrong Buy
Long-Term (Tide)?▼ Bearish(-3/3)
Medium-Term (Wave)?▼ Bearish(-3/3)
Short-Term (Ripple)?▼ Bearish(-3/3)
MA Alignment?Bearish Alignment
Full Technical Analysis →
Fundamental OutlookSell
Strong SellNeutralStrong Buy
F-Score?
6
Z-Score?
0
Momentum?
65
Short Sent.?
80
Piotroski F-Score?1/9Weak
Altman Z-Score?-26.76Distress
Confidence?46%Low
Full Fundamental Analysis →
Short InterestElevated
Short % of Float?5.89%Elevated
Short Interest?1.4M
Days to Cover?2.5
Free Float24.0M
Avg Daily Volume566.9K
Settlement Date2026-06-15
Financial Health
Current Ratio?1.04Adequate
Quick Ratio?1.04Adequate
Cash Ratio?0.67Adequate
Debt/Equity?1.91High
ValuationFAIRLY VALUEDvs 1 peers + S&P 500
Score
67/100
P/E?
N/A▾
P/B?
Peers
100
S&P
62
2.64CHEAP▾
P/S?
Peers
100
S&P
9
9.25HIGH▾
P/FCF?
N/A▾
EV/EBITDA?
S&P
97
-1.0CHEAP▾
EV/Sales?
Peers
100
S&P
10
10.20HIGH▾
Returns & Efficiency
ROE?
S&P
3
-395.4%WEAK▾
ROA?
S&P
3
-76.9%WEAK▾
Cash Flow & Enterprise
FCF?$-49060000
Enterprise Value?$27.5M
Fundamentals ratios updated end of day
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