Revenue
$73.00K
Fiscal year ended 2026-06-30Operating income
-$15.13M
Fiscal year ended 2026-06-30Free cash flow
-$9.44M
Fiscal year ended 2026-06-30Valuation, from the filing
| Public float | $13.60M | Market value of stock held by non-affiliates, as stated on the cover page for 2025-06-30 |
|---|---|---|
| Float per share | $0.50 | Float divided by shares outstanding in the same filing. A floor under the share price on that date, not the price itself. |
| Float / revenue | 8.6× | A lower bound on the multiple, because affiliate holdings are excluded. |
| Float / equity | 1.6× | A lower bound on the multiple, because affiliate holdings are excluded. |
Every figure here is drawn from the 10-K cover page and the statements behind it, so each one traces to a filing. Public float counts only stock held by non-affiliates, which makes these floors rather than estimates: a high multiple is conclusive, a low one may mean cheap or may mean closely held. The float was measured on 2025-06-30, not today, and each multiple below it uses the figures for the fiscal year ending 2025-12-31 — the year that filing covered.
How this compares in its industry
Percentile among the Miscellaneous Electrical Machinery, Equipment & Supplies filers on this site, highest value first. A high percentile means a large figure, which is good for a margin and not for leverage — the ranking says where the company sits, not whether that is where it should be.
| Measure | Reported | Percentile | |
|---|---|---|---|
| Gross margin | -1748.1% | 0th | |
| Net margin | -4007.6% | 3th | |
| Operating margin | -3626.5% | 3th | |
| SBC / revenue | 343.3% | 96th | |
| CapEx / revenue | 214.0% | 96th | |
| FCF margin | -3390.5% | 4th | |
| Revenue YoY growth | -74.9% | 6th | |
| R&D / revenue | 524.1% | 93th | |
| Current ratio | 1.04x | 33th |
ESS Tech, Inc. (GWH) reported revenue of $73.00K and net income of -$15.55M for the fiscal year ended 2026-06-30. This page shows 10 annual periods of income statement, balance sheet and cash flow figures normalized from ESS Tech, Inc.’s SEC filings, each linked to the filing it came from. It is classified by the SEC under Miscellaneous Electrical Machinery, Equipment & Supplies.
Income
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $73.00K | $128.00K | -$1.59M | $214.00K | $2.36M | $599.00K | $2.85M | $359.00K | $348.00K | $2.74M |
| Cost of revenue | $7.49M | $7.17M | $8.11M | $4.94M | $7.46M | $8.75M | $16.04M | $12.74M | $11.75M | $11.13M |
| Gross profit | -$7.42M | -$7.04M | -$9.70M | -$4.72M | -$5.10M | -$8.15M | -$13.19M | -$12.38M | -$11.40M | -$8.39M |
| Operating income | -$15.13M | -$13.78M | -$17.89M | -$9.81M | -$11.56M | -$18.15M | -$23.50M | -$23.68M | -$23.12M | -$19.49M |
| Net income | -$15.55M | -$15.92M | -$23.98M | -$10.38M | -$11.06M | -$18.03M | -$23.48M | -$22.49M | -$21.94M | -$18.31M |
| Research & development | $2.20M | $2.62M | $3.37M | $1.03M | $1.42M | $2.48M | $2.71M | $2.68M | $2.84M | $3.55M |
| Weighted-average diluted shares | shares 33.82M | shares 29.29M | Unavailable | shares 14.15M | shares 12.27M | shares 12.03M | Unavailable | shares 11.81M | shares 11.72M | shares 11.63M |
| Pretax income | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Income tax expense | $0 | $0 | $0 | $0 | $0 | $0 | Unavailable | $0 | $0 | $0 |
| Diluted EPS | $-0.46 | $-0.54 | Unavailable | $-0.73 | $-0.90 | $-1.50 | Unavailable | $-1.90 | $-1.87 | $-1.57 |
| Selling, general & administrative | $5.51M | $4.12M | $4.83M | $4.06M | $5.03M | $7.52M | $7.60M | $8.62M | $8.89M | $7.56M |
| General & administrative | $4.95M | $3.86M | $4.61M | $3.70M | $3.73M | $5.57M | $5.72M | $6.09M | $6.18M | $5.53M |
| Selling & marketing | $562.00K | $254.00K | $220.00K | $360.00K | $1.30M | $1.95M | $1.89M | $2.53M | $2.71M | $2.03M |
Balance
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Cash & equivalents | $10.85M | $15.49M | $14.48M | $3.54M | $797.00K | $8.42M | $13.34M | $12.82M | $36.74M | $36.33M |
| Total assets | $32.48M | $48.57M | $51.17M | $36.14M | $39.62M | $53.58M | $71.81M | $96.70M | $111.13M | $123.63M |
| Current assets | $13.59M | $24.77M | $26.25M | $11.56M | $11.17M | $23.69M | $43.36M | $68.55M | $84.66M | $98.25M |
| Total liabilities | $35.16M | $39.13M | $42.55M | $37.91M | $36.31M | $41.50M | $42.93M | $47.50M | $42.09M | $35.81M |
| Current liabilities | $20.00M | $23.01M | $25.29M | $23.80M | $23.96M | $22.25M | $27.60M | $32.08M | $26.00M | $19.89M |
| Total equity incl. NCI | -$2.69M | $9.45M | $8.62M | -$1.77M | $3.30M | $12.08M | $28.88M | $49.20M | $69.04M | $87.82M |
| Temporary (mezzanine) equity | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Inventory | $112.00K | $123.00K | $140.00K | $4.65M | $4.67M | $6.88M | $5.64M | $7.04M | $4.42M | $3.16M |
| Accounts receivable | $10.00K | $37.00K | $13.00K | $108.00K | $148.00K | $253.00K | $215.00K | $413.00K | $981.00K | $1.04M |
| Goodwill | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Long-term debt | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Accounts payable | $1.23M | $1.33M | $3.02M | $9.47M | $10.63M | $10.22M | $8.07M | $10.94M | $5.83M | $2.91M |
Cash flow
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Operating cash flow | -$8.94M | -$13.46M | -$13.85M | -$5.83M | -$12.36M | -$18.24M | -$20.48M | -$17.61M | -$15.22M | -$18.91M |
| Capital expenditures | $502.00K | $930.00K | $2.31M | -$417.00K | $729.00K | $762.00K | $3.47M | $2.26M | $612.00K | $953.00K |
| Investing cash flow | $5.50M | $725.00K | -$9.81M | $417.00K | $3.67M | $13.25M | $20.87M | -$6.30M | $15.50M | $34.69M |
| Financing cash flow | -$1.20M | $14.05M | $34.60M | $8.06M | $816.00K | -$13.00K | $125.00K | -$8.00K | $138.00K | -$81.00K |
| Net change in cash | -$4.64M | $1.31M | $10.94M | $2.64M | -$7.88M | -$5.00M | $520.00K | -$23.92M | $412.00K | $15.70M |
| Stock-based compensation | $681.00K | $1.06M | $1.49M | $1.25M | $1.46M | $1.23M | $3.04M | $2.66M | $3.03M | $2.85M |
| Common dividends paid | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Common share repurchases | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Depreciation & amortization | $698.00K | $2.38M | $1.17M | $1.49M | $1.54M | $1.54M | $1.42M | $781.00K | $1.30M | $1.22M |
Derived
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Free cash flow | -$9.44M | -$14.39M | -$16.17M | Unavailable | -$13.09M | -$19.00M | -$23.95M | -$19.87M | -$15.83M | -$19.86M |
| Gross margin | -10165.8% | -5498.4% | Unavailable | -2207.9% | -216.3% | -1360.1% | -462.7% | -3449.0% | -3275.9% | -306.4% |
| Operating margin | -20731.5% | -10765.6% | Unavailable | -4584.6% | -490.1% | -3029.4% | -824.5% | -6596.7% | -6645.1% | -712.0% |
| FCF margin | -12938.4% | -11241.4% | Unavailable | Unavailable | -555.0% | -3172.0% | -840.2% | -5534.8% | -4549.7% | -725.5% |
| SBC / revenue | 932.9% | 831.2% | Unavailable | 582.2% | 62.1% | 206.0% | 106.6% | 740.4% | 869.5% | 104.2% |
| Current ratio | 0.68x | 1.08x | 1.04x | 0.49x | 0.47x | 1.07x | 1.57x | 2.14x | 3.26x | 4.94x |
| Revenue YoY growth | -96.9% | -78.6% | -155.7% | -40.4% | 577.6% | -78.1% | 1.9% | -76.8% | -87.7% | 636.0% |
| Net margin | -21305.5% | Unavailable | Unavailable | -4848.1% | -468.9% | Unavailable | -823.8% | -6265.5% | Unavailable | Unavailable |
| R&D / revenue | 3015.1% | 2050.8% | Unavailable | 479.9% | 60.4% | 413.7% | 94.9% | 747.6% | 814.9% | 129.5% |
| CapEx / revenue | 687.7% | 726.6% | Unavailable | -194.9% | 30.9% | 127.2% | 121.8% | 629.0% | 175.9% | 34.8% |
| Long-term debt / equity | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Effective tax rate | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
Amounts are abbreviated; the exact reported value is carried in each cell. — means unavailable, not zero. Open GWH in the interactive workspace to inspect any figure back to its filing.
Source filings
10-Q · Filed 2026-08-11View SEC filing
10-Q · Filed 2026-05-07View SEC filing
10-K · Filed 2026-03-05View SEC filing
10-Q · Filed 2025-11-13View SEC filing
10-Q · Filed 2025-08-14View SEC filing
10-Q · Filed 2025-05-15View SEC filing
Every accounting identity this site checks — the balance sheet, the gross profit bridge and the cash flow statement — reconciles in every period shown.