ESS Tech, Inc.
GWHIndustrialsNASDAQElectrical Equipment & Parts · Last scanned Sep 5, 2026
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Daily timeframeESS Tech, Inc., an energy storage company, engages in the design and production of iron flow batteries for commercial and utility-scale energy storage applications worldwide. With a market capitalization of $13.5M, it sits in micro-cap territory. It offers energy storage products, which include Energy Warehouse, a behind-the-meter solution; and the gigawatt-hour energy base storage product, a fully configurable layout that integrates with any site location and that allows the power to be decoupled from the capacity.
Market Cap
$13.5M
Beta
1.35
P/E (TTM)
—
P/E (Fwd)
-0.43
EPS (TTM)
$-2.99
EPS (Fwd)
$-0.79
ROE
-21339.7%
ROA
-87.8%
Cash
$10.8M
Total Debt
$17.5M
Free CF
-$33.6M
52W Change
-75.4%
Annual Financials
Cash vs Debt
Where GWH stands vs its 150-day and 200-day moving averages
As of the September 3, 2026 close, GWH finished 67.65% below its 150-day moving average ($1.02) and 74.42% below its 200-day moving average ($1.29). This snapshot is end-of-day data shown with a five-trading-day delay on the free plan; Premium members see readings from the latest close.
Is GWH overbought or oversold?
At the September 3, 2026 close, GWH's RSI(14) was 23.1, in oversold territory (below 30). The MACD histogram was negative, so short-term momentum leaned bearish at that close. These readings are historical, refresh daily after market close, and are not investment advice.
On the balance sheet, GWH has $10.8M in cash with $17.5M in obligations. The ability to service this debt comfortably depends on continued operational cash generation. The company is burning cash, with free cash flow at -$33.6M. This typically occurs when a company is investing aggressively in growth, but sustained cash burn can strain the balance sheet. ROE of -21339.7% points to negative capital efficiency, indicating how much profit the company produces per dollar of shareholder equity. Revenue has been uneven over recent years, ranging from $894K to $1.6M.
Negative free cash flow means the company is currently spending more than it generates, which may require future fundraising or debt if the trend continues. It is important to consider these factors alongside broader market conditions and individual financial goals when reviewing GWH.