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Ess Tech Inc Financials

GWH
Source SEC Filings (10-K/10-Q) Updated Mar 31, 2026 Currency USD FYE December

This page shows Ess Tech Inc (GWH) financial statements, including the income statement, balance sheet, cash flow statement, and key financial ratios. View 6 years of annual fundamentals and quarterly data, with year-over-year growth rates and compound annual growth rates (CAGR). All figures are derived from SEC filings (10-K and 10-Q reports).

Rhea AI GWH FY2025

Tiny product revenue still leaves ESS Tech heavily dependent on external funding because operating costs overwhelm commercial sales.

FY2025's reported profit of $63.4M conflicted with operating cash flow of -$50.3M, so accounting earnings were not describing cash economics generated by product sales. From FY2024 to FY2025, revenue fell 74.9% while operating cash burn improved only 30.4%, which looks more like expense retrenchment than commercial scale.

With only $14.5M of cash against -$53.7M of free cash flow in FY2025, the company was not funding itself internally. The balance-sheet cushion also thinned as the current ratio slid from 1.6x to 1.0x and equity fell to $8.6M, leaving less room for delays or overruns.

FY2025 cost of revenue of $29.3M against sales of $1.6M shows the company is still carrying production costs ahead of demand. R&D of $8.3M also remained above revenue, a development-stage commercialization pattern rather than a mature self-financing operating model.

[ NOT FINANCIAL ADVICE ]

Financial Health Signals

Profitability Growth Leverage Liquidity Cash Flow Returns 19 / 100
Financial Profile 19/100

Based on FY2025 annual data, averaged across the last 3 years for performance metrics (most-recent year weighted highest). How this score is calculated →

Health score ≠ stock price. This rates the quality of Ess Tech Inc's business: profitability, growth, balance sheet strength. It doesn't tell you whether the stock is a good buy at today's price. Not financial advice. Use it alongside valuation analysis and your own research.

Profitability
0

Ess Tech Inc has an operating margin of -3626.5%, meaning the company retains $-3626 of operating profit per $100 of revenue. This below-average margin results in a low score of 0/100, suggesting thin profitability after operating expenses. This is down from -1426.5% the prior year.

Growth
0

Ess Tech Inc's revenue declined 74.9% year-over-year, from $6.3M to $1.6M. This contraction results in a growth score of 0/100.

Leverage
1

Ess Tech Inc has elevated debt relative to equity (D/E of 4.94), meaning the company relies heavily on borrowed funds. This high leverage results in a low score of 1/100, reflecting increased financial risk.

Liquidity
16

Ess Tech Inc's current ratio of 1.04 is below the typical benchmark, resulting in a score of 16/100. However, the company holds substantial cash reserves (57% of current liabilities), which buffers actual liquidity risk. Large mature operators often run tight current ratios by design.

Cash Flow
0

While Ess Tech Inc generated -$50.3M in operating cash flow, capex of $3.4M consumed most of it, leaving -$53.7M in free cash flow. This results in a low score of 0/100, reflecting heavy capital investment rather than weak cash generation.

Returns
100

Ess Tech Inc earns a strong 736.1% return on equity (ROE), meaning it generates $736 of profit for every $100 of shareholders' equity. This efficient capital use earns a returns score of 100/100. This is up from 298.5% the prior year.

Piotroski F-Score Weak
2/9

Ess Tech Inc passes 2 of 9 financial strength tests. 2 of 4 profitability signals pass, no leverage/liquidity signals pass (rising debt, declining liquidity, or share dilution), neither operating efficiency signal passes.

Earnings Quality Low Quality
-0.79x

For every $1 of reported earnings, Ess Tech Inc generates $-0.79 in operating cash flow (-$50.3M OCF vs $63.4M net income). This low ratio suggests earnings are primarily driven by accounting accruals rather than cash generation, which may not be sustainable.

Key Financial Metrics

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Earnings & Revenue

Revenue
$1.6M
YoY-74.9%

Ess Tech Inc generated $1.6M in revenue in fiscal year 2025. This represents a decrease of 74.9% from the prior year.

EBITDA
-$51.7M
YoY+39.3%

Ess Tech Inc's EBITDA was -$51.7M in fiscal year 2025, measuring earnings before interest, taxes, depreciation, and amortization. This represents an increase of 39.3% from the prior year.

Net Income
$63.4M
YoY-26.4%

Ess Tech Inc reported $63.4M in net income in fiscal year 2025. This represents a decrease of 26.4% from the prior year.

EPS (Diluted)
$-4.34
YoY+40.7%

Ess Tech Inc earned $-4.34 per diluted share (EPS) in fiscal year 2025. This represents an increase of 40.7% from the prior year.

Cash & Balance Sheet

Free Cash Flow
-$53.7M
YoY+32.5%

Ess Tech Inc generated -$53.7M in free cash flow in fiscal year 2025, representing cash available after capex. This represents an increase of 32.5% from the prior year.

Cash & Debt
$14.5M
YoY+8.5%
5Y CAGR+24.2%

Ess Tech Inc held $14.5M in cash against $0 in long-term debt as of fiscal year 2025.

Dividends Per Share
N/A
Shares Outstanding
22M
YoY+86.7%
5Y CAGR-17.6%

Ess Tech Inc had 22M shares outstanding in fiscal year 2025. This represents an increase of 86.7% from the prior year.

Margins & Returns

Gross Margin
-1748.1%
YoY-1027.5pp

Ess Tech Inc's gross margin was -1748.1% in fiscal year 2025, indicating the percentage of revenue retained after direct costs. This is down 1027.5 percentage points from the prior year.

Operating Margin
-3626.5%
YoY-2200.0pp

Ess Tech Inc's operating margin was -3626.5% in fiscal year 2025, reflecting core business profitability. This is down 2200.0 percentage points from the prior year.

Net Margin
4007.6%
YoY+2637.9pp

Ess Tech Inc's net profit margin was 4007.6% in fiscal year 2025, showing the share of revenue converted to profit. This is up 2637.9 percentage points from the prior year.

Return on Equity
736.1%
YoY+437.6pp

Ess Tech Inc's ROE was 736.1% in fiscal year 2025, measuring profit generated per dollar of shareholder equity. This is up 437.6 percentage points from the prior year.

Capital Allocation

R&D Spending
$8.3M
YoY-29.5%
5Y CAGR-8.4%

Ess Tech Inc invested $8.3M in research and development in fiscal year 2025. This represents a decrease of 29.5% from the prior year.

Share Buybacks
N/A
Capital Expenditures
$3.4M
YoY-53.6%
5Y CAGR+46.5%

Ess Tech Inc invested $3.4M in capex in fiscal year 2025, funding long-term assets and infrastructure. This represents a decrease of 53.6% from the prior year.

GWH Income Statement

Metric Q1'26 Q4'25 Q3'25 Q2'25 Q1'25 Q4'24 Q3'24 Q2'24
Revenue $128K N/A $214K-90.9% $2.4M+293.7% $599K-79.0% $2.9M+693.9% $359K+3.2% $348K
Cost of Revenue $7.2M N/A $4.9M-33.8% $7.5M-14.7% $8.7M-45.5% $16.0M+25.9% $12.7M+8.5% $11.7M
Gross Profit -$7.0M N/A -$4.7M+7.4% -$5.1M+37.4% -$8.1M+38.2% -$13.2M-6.5% -$12.4M-8.6% -$11.4M
R&D Expenses $2.6M N/A $1.0M-27.9% $1.4M-42.5% $2.5M-8.4% $2.7M+0.8% $2.7M-5.4% $2.8M
SG&A Expenses $3.9M N/A $3.7M-0.8% $3.7M-33.1% $5.6M-2.5% $5.7M-6.1% $6.1M-1.5% $6.2M
Operating Income -$13.8M N/A -$9.8M+15.1% -$11.6M+36.3% -$18.1M+22.8% -$23.5M+0.8% -$23.7M-2.4% -$23.1M
Interest Expense $2.4M N/A N/A N/A N/A N/A N/A N/A
Income Tax $0 N/A $0 $0 $0 N/A $0 $0
Net Income -$15.9M N/A -$10.4M+6.2% -$11.1M+38.7% -$18.0M-112.1% $149.0M+762.3% -$22.5M-2.5% -$21.9M
EPS (Diluted) $-0.54 N/A $-0.73+18.9% $-0.90+40.0% $-1.50 N/A $-1.90 $-1.87

GWH Balance Sheet

Metric Q1'26 Q4'25 Q3'25 Q2'25 Q1'25 Q4'24 Q3'24 Q2'24
Total Assets $48.6M-5.1% $51.2M+41.6% $36.1M-8.8% $39.6M-26.1% $53.6M-25.4% $71.8M-25.7% $96.7M-13.0% $111.1M
Current Assets $24.8M-5.6% $26.2M+127.1% $11.6M+3.5% $11.2M-52.9% $23.7M-45.4% $43.4M-36.7% $68.6M-19.0% $84.7M
Cash & Equivalents $15.5M+7.0% $14.5M+309.1% $3.5M+344.0% $797K-90.5% $8.4M-36.9% $13.3M+4.0% $12.8M-65.1% $36.7M
Inventory $123K-12.1% $140K-97.0% $4.7M-0.4% $4.7M-32.1% $6.9M+22.0% $5.6M-19.8% $7.0M+59.0% $4.4M
Accounts Receivable $37K+184.6% $13K-88.0% $108K-27.0% $148K-41.5% $253K+17.7% $215K-47.9% $413K-57.9% $981K
Goodwill N/A N/A N/A N/A N/A N/A N/A N/A
Total Liabilities $39.1M-8.1% $42.6M+12.2% $37.9M+4.4% $36.3M-12.5% $41.5M-3.3% $42.9M-9.6% $47.5M+12.8% $42.1M
Current Liabilities $23.0M-9.0% $25.3M+6.3% $23.8M-0.6% $24.0M+7.7% $22.2M-19.4% $27.6M-14.0% $32.1M+23.4% $26.0M
Long-Term Debt $8.5M N/A N/A N/A N/A N/A N/A N/A
Total Equity $9.4M+9.6% $8.6M+587.7% -$1.8M-153.5% $3.3M-72.6% $12.1M-58.2% $28.9M-41.3% $49.2M-28.7% $69.0M
Retained Earnings -$861.7M-1.9% -$845.8M-2.9% -$821.8M-1.3% -$811.5M-1.4% -$800.4M-2.3% -$782.4M-3.1% -$758.9M-3.1% -$736.4M

GWH Cash Flow Statement

Metric Q1'26 Q4'25 Q3'25 Q2'25 Q1'25 Q4'24 Q3'24 Q2'24
Operating Cash Flow -$13.5M+2.9% -$13.9M-137.5% -$5.8M+52.8% -$12.4M+32.2% -$18.2M+10.9% -$20.5M-16.3% -$17.6M-15.7% -$15.2M
Capital Expenditures $930K-59.8% $2.3M+654.7% -$417K-157.2% $729K-4.3% $762K-78.0% $3.5M+53.7% $2.3M+269.0% $612K
Free Cash Flow -$14.4M+11.0% -$16.2M-158.7% -$6.3M+52.2% -$13.1M+31.1% -$19.0M+20.7% -$23.9M-20.5% -$19.9M-25.5% -$15.8M
Investing Cash Flow $725K+107.4% -$9.8M-2452.3% $417K-88.6% $3.7M-72.3% $13.3M-36.5% $20.9M+431.2% -$6.3M-140.7% $15.5M
Financing Cash Flow $14.0M-59.4% $34.6M+329.4% $8.1M+887.5% $816K+6376.9% -$13K-110.4% $125K+1662.5% -$8K-105.8% $138K
Dividends Paid N/A N/A N/A N/A N/A N/A N/A N/A
Share Buybacks N/A N/A N/A N/A N/A N/A N/A N/A

GWH Financial Ratios

Metric Q1'26 Q4'25 Q3'25 Q2'25 Q1'25 Q4'24 Q3'24 Q2'24
Gross Margin -5498.4% N/A -2207.9%-1991.6pp -216.3%+1143.8pp -1360.1%-897.4pp -462.7%+2986.3pp -3449.0%-173.2pp -3275.9%
Operating Margin -10765.6% N/A -4584.6%-4094.5pp -490.1%+2539.3pp -3029.4%-2204.9pp -824.5%+5772.2pp -6596.7%+48.4pp -6645.1%
Net Margin -12439.1% N/A -4848.1%-4379.3pp -468.9%+2540.5pp -3009.3%-8236.1pp 5226.8%+11492.2pp -6265.5%+39.1pp -6304.6%
Return on Equity -168.6% N/A N/A -334.6%-185.4pp -149.2%-665.0pp 515.7%+561.5pp -45.7%-13.9pp -31.8%
Return on Assets -32.8% N/A -28.7%-0.8pp -27.9%+5.7pp -33.6%-241.1pp 207.4%+230.7pp -23.3%-3.5pp -19.7%
Current Ratio 1.08+0.0 1.04+0.6 0.49+0.0 0.47-0.6 1.06-0.5 1.57-0.6 2.14-1.1 3.26
Debt-to-Equity 4.14-0.8 4.94+26.4 -21.46-32.4 10.99+7.6 3.44+1.9 1.49+0.5 0.97+0.4 0.61
FCF Margin -11241.4% N/A -2920.6%-2365.5pp -555.1%+2616.9pp -3171.9%-2331.7pp -840.3%+4694.6pp -5534.8%-985.1pp -4549.7%

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Frequently Asked Questions

Ess Tech Inc (GWH) reported $1.6M in total revenue for fiscal year 2025. This represents a -74.9% change compared to the previous fiscal year. Revenue measures the total income earned from the company's primary business operations before any expenses are deducted.

Ess Tech Inc (GWH) revenue declined by 74.9% year-over-year, from $6.3M to $1.6M in fiscal year 2025.

Yes, Ess Tech Inc (GWH) reported a net income of $63.4M in fiscal year 2025, with a net profit margin of 4007.6%.

Ess Tech Inc (GWH) reported diluted earnings per share of $-4.34 for fiscal year 2025. This represents a 40.7% change compared to the previous fiscal year. EPS represents the portion of a company's net income allocated to each outstanding share of common stock and is widely used to evaluate profitability on a per-share basis.

Ess Tech Inc (GWH) had EBITDA of -$51.7M in fiscal year 2025, measuring earnings before interest, taxes, depreciation, and amortization.

Ess Tech Inc (GWH) had a gross margin of -1748.1% in fiscal year 2025, indicating the percentage of revenue retained after direct costs of goods sold.

Ess Tech Inc (GWH) had an operating margin of -3626.5% in fiscal year 2025, reflecting the profitability of core business operations before interest and taxes.

Ess Tech Inc (GWH) had a net profit margin of 4007.6% in fiscal year 2025, representing the share of revenue converted into profit after all expenses.

Ess Tech Inc (GWH) has a return on equity of 736.1% for fiscal year 2025, measuring how efficiently the company generates profit from shareholder equity.

Ess Tech Inc (GWH) generated -$53.7M in free cash flow during fiscal year 2025. This represents a 32.5% change compared to the previous fiscal year. Free cash flow represents the cash a company generates after accounting for capital expenditures, and is widely used to assess financial flexibility and shareholder value.

Ess Tech Inc (GWH) generated -$50.3M in operating cash flow during fiscal year 2025, representing cash generated from core business activities.

Ess Tech Inc (GWH) had $51.2M in total assets as of fiscal year 2025, including both current and long-term assets.

Ess Tech Inc (GWH) invested $3.4M in capital expenditures during fiscal year 2025, funding long-term assets and infrastructure.

Ess Tech Inc (GWH) invested $8.3M in research and development during fiscal year 2025.

Ess Tech Inc (GWH) had 22M shares outstanding as of fiscal year 2025.

Ess Tech Inc (GWH) had a current ratio of 1.04 as of fiscal year 2025, which is considered adequate.

Ess Tech Inc (GWH) had a debt-to-equity ratio of 4.94 as of fiscal year 2025, measuring the company's financial leverage by comparing total debt to shareholder equity.

Ess Tech Inc (GWH) had a return on assets of 124.0% for fiscal year 2025, measuring how efficiently the company uses its assets to generate profit.

Based on fiscal year 2025 data, Ess Tech Inc (GWH) had $14.5M in cash against an annual operating cash burn of $50.3M. This gives an estimated cash runway of approximately 3 months at the current burn rate. Cash runway measures how long a company can continue operating before running out of cash, assuming no additional funding.

Ess Tech Inc (GWH) has a Piotroski F-Score of 2 out of 9, indicating weak financial health. The F-Score evaluates nine binary signals across profitability (positive ROA, positive cash flow, improving ROA, earnings quality), leverage (decreasing debt, improving liquidity, no share dilution), and operating efficiency (improving gross margin, improving asset turnover). Scores of 7 to 9 indicate strong and improving fundamentals. Learn more in our complete guide to financial health indicators.

Ess Tech Inc (GWH) has an earnings quality ratio of -0.79x, considered low quality (accrual-driven). This ratio compares operating cash flow to net income. A ratio above 1.0x means the company generates more cash than its reported earnings, indicating sustainable, cash-backed profits. Ratios below 1.0x suggest earnings rely on accounting accruals rather than actual cash generation. Learn more in our complete guide to financial health indicators.

Ess Tech Inc (GWH) scores 19 out of 100 on our Financial Profile, indicating weak overall financial health. This composite score evaluates six dimensions: profitability (operating margin), revenue growth, leverage (debt-to-equity), liquidity (current ratio), cash flow quality (free cash flow margin), and shareholder returns (return on equity). Each dimension is normalized against standard financial benchmarks. Learn more in our complete guide to financial health indicators.

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