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Upturn AI Summary - About
ESS Tech Inc(GWH)
Advisory History & Simulated Performance *
*as per simulation (see disclosures)- ALL
- 1Y
- 1M
- 1W
- BUY Advisory
- SELL Advisory (Profit)
- SELL Advisory (Loss)
- Profit
- Loss
- PASS (Skip)
Stock price based on last close Advisory Performance History (Simulated)
Upturn Advisory & Investor View for GWH
10/19/2026: GWH (1-star) is currently NOT-A-BUY. Pass it for now.
ESS Tech Inc is a developer of iron flow battery technology designed for long-duration energy storage. The company is primarily a growth-stage entity, benefiting from the global shift toward intermittent renewable power and the resulting need for grid resilience. Its main strength lies in its use of non-toxic, abundant materials, though it faces significant competition from established lithium-ion giants and substantial execution risks in scaling manufacturing. Investors should monitor project delivery milestones and progress toward margin profitability as the primary indicators of success. The stock is best suited for risk-tolerant investors looking for exposure to the clean energy transition, noting that the company does not pay dividends.
How to Read the Upturn Advisory
The Upturn Star Rating and the current BUY, SELL, or PASS advisory are generated by Upturn’s AI advisory engine based on proprietary signal analysis, price behavior, advisory history, and historical signal performance.
Company fundamentals, valuation, risks, and news provide supporting context about the business.
Investor Fit
| Investor style | Fit | Why |
|---|---|---|
| Growth investor | Mixed fit | The company operates in a high-growth sector but is still proving its commercial viability. |
| Momentum investor | Weak fit | The stock lacks the consistent trend patterns required by momentum strategies at this stage. |
| Value investor | Weak fit | The company is not currently profitable, making standard value metrics inapplicable. |
| Dividend investor | Weak fit | No dividends are paid, as all capital is used for business development. |
| Low-risk investor | Weak fit | High volatility and operational uncertainty make this unsuitable for low-risk portfolios. |
Risk Profile
| Risk factor | Level | Why it matters |
|---|---|---|
| Price volatility | High | Speculative nature of the technology leads to significant stock price swings. |
| Valuation risk | High | Valuations are based on future market penetration expectations rather than current earnings. |
| Competition risk (Lithium-ion incumbents) | High | Competing against established, low-cost lithium-ion batteries is a major challenge. |
| Business quality | Medium | The proprietary technology is a strong core, but the franchise is still early in development. |
| Dividend income | Low / none | Investors should expect zero income generation from this holding. |
| Execution risk | High | The company must successfully scale manufacturing to reach commercial profitability. |
Price Behavior
Steep Decline
The stock price has dropped sharply with strong downward pressure.
Extreme Price Shocks
The stock has experienced exceptionally large and disruptive price movements during the period.
Analysis of Past Performance
Type Stock | Historic Profit 52.03% | Avg. Invested days 9 | Today’s Advisory PASS |
Upturn Advisory Rating  | Upturn Advisory Performance  2.0 | Stock Returns Performance  3.0 |
| Profits based on simulation | Last Close 10/19/2026 |
Upturn Scorecard
Upturn Star Rating 
Company Fundamentals
Financial Health Rating
Growth Momentum Score
Ownership
Top 5 Institutional Investors
Unit Economics (Per $1K Revenue)
Economic Dimensions
Quantitative Style Profile
Style Classification
Quality Focused
Key Highlights
Company Size Small-Cap Stock | Market Capitalization 6.31M USD | Price to earnings Ratio - | 1Y Target Price 2 |
Price to earnings Ratio - | 1Y Target Price 2 | ||
Volume (30-day avg) 1.1M shares | Beta 1.35 | 52 Weeks Range 0.05 - 5.67 | Updated Date 10/20/2026 |
52 Weeks Range 0.05 - 5.67 | Updated Date 10/20/2026 | ||
Dividends yield (FY) - | Basic EPS (TTM) -2.95 |
How Company Makes Money
| Business area | What it includes | Retail investor read |
|---|---|---|
| Energy Storage Systems | Sale of Energy Warehouse and Energy Center hardware, plus service agreements. | The company earns revenue by selling large-scale iron-flow battery systems to utilities and industrial power users. |
Analyzing Revenue: Products, Geography and Growth
Revenue by Products
Product revenue - Year on Year
Revenue by Geography
Geography revenue - Year on Year
Valuation
Trailing PE - | Forward PE - | Enterprise Value 21.35M | Price to Sales(TTM) 16.94 |
Enterprise Value 21.35M | Price to Sales(TTM) 16.94 | ||
Enterprise Value to Revenue 7.29 | Enterprise Value to EBITDA -0.15 | Shares Outstanding 40.27M | Shares Floating 29.83M |
Shares Outstanding 40.27M | Shares Floating 29.83M | ||
Percent Insiders 7.31 | Percent Institutions 19.04 |
Financial Metrics
🧭 Investment Snapshot
Total Revenue (Scale)
Total money earned from selling products or services before any costs. It is needed to understand the scale of the business and its ability to generate income.
Net Income (Profit)
Final profit after all expenses, interest, and taxes are deducted. It is needed to determine the overall profitability available to shareholders.
Free Cash Flow (Cash Strength)
Cash remaining after operating activities and capital expenditures, showing cash available for growth. It is needed to evaluate the company’s ability to invest, pay dividends, or reduce debt.
📈 Growth & Strength
Operating Income (Core Profit)
Profit from core operations after deducting all operating expenses. It is needed to measure how efficiently the company runs its primary business activities.
EBITDA (Cash Earnings)
Earnings before interest, taxes, depreciation, and amortization, indicating operating cash potential. It is needed to compare operating performance across companies without accounting or financing differences.
Gross Profit (Unit Profitability)
Revenue minus cost of revenue, showing profit after direct production costs. It is needed to evaluate core business profitability before overhead expenses.
🛡️ Financial Safety
Cash (Liquidity Buffer)
Total cash and cash equivalents on hand. It is needed to evaluate immediate liquidity and financial flexibility.
Total Debt (Leverage Risk)
Total debt including both short-term and long-term components. It is needed to assess the company’s leverage and financial risk.
Net Working Capital (Short-Term Health)
Current assets minus current liabilities, indicating short-term liquidity strength. It is needed to assess whether the company can meet its short-term obligations.
🧱 Balance Sheet Strength
Stockholder Equity (Net Worth)
Total equity value held by shareholders. It is needed to understand the net worth of the company from the owners’ perspective.
Total Assets (Asset Base)
The full value of everything the company owns, including cash, inventory, equipment, and investments. It is needed to understand the resource base used to generate revenue.
Income Before Tax (Pre-Tax Earnings)
Income before provision for income taxes. It is needed to analyze profitability independent of tax structures.
⚙️ Cost & Drag Factors
Cost of Revenue (Production Cost)
Direct costs required to produce and deliver the products or services sold. It is needed to assess efficiency in production and service delivery.
Total Operating Expenses (Operating Cost)
Indirect costs of running the business such as salaries, marketing, and administration. It is needed to understand how much it costs to sustain ongoing business operations.
Income Tax Expense (Tax Drag)
Amount of taxes paid or payable to the government. It is needed to evaluate the impact of taxation on overall profitability.
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