OTC:WNDW
SolarWindow Technologies, Inc.
A micro-cap OTC stock attempting to commercialize electrochromic windows that generate power while acting as smart energy regulators for residential solar markets.
Key Metrics
Investment Thesis
Bull Case
WNDW offers a high-risk, high-reward opportunity for investors seeking exposure to disruptive smart building technology with potential to transform residential energy efficiency. The company's substantial cash reserves and recent financing activities suggest management is committed to bringing products to market before running into solvency issues. Early entry allows investors to participate in the first-mover advantage of a patent-protected electrochromic window ecosystem that could redefine solar integration.
Bear Case
The stock carries extreme downside risk given zero revenue, negative net income for four consecutive years, and a massive retained earnings deficit of over $81 million. Without a clear path to profitability or commercial sales, the company is entirely dependent on external capital injections which may result in significant shareholder dilution. The lack of operating cash flow generation indicates that current business models are not sustainable without fundamental shifts in market adoption or product licensing.
About SolarWindow Technologies, Inc.
SolarWindow Technologies (WNDW) develops smart electrochromic windows that generate electricity while regulating heat and light. The company primarily serves the residential solar market in North America, offering a scalable solution to reduce energy consumption for homeowners. Despite recent capital raises, the firm has yet to generate commercial revenue from its core product line.
Analysis
Management Discussion
Management successfully secured $3.8M in financing cash flows to offset a net loss of $2.3M, resulting in a positive net change in cash of $5.3M despite ongoing operational burn. The company continues to invest heavily in research and development with $621K allocated specifically for R&D while maintaining minimal current liabilities relative to its equity position. However, the inability to generate revenue from continuing operations highlights a critical gap between technological innovation and market commercialization.
Industry Overview
The smart window industry represents a growing sector within renewable energy, focusing on integrating power generation with building efficiency standards. While global demand for passive solar control technologies is expanding rapidly, the technical barriers to manufacturing and commercializing electrochromic windows remain high. Competitors in this space face similar challenges of scaling production while maintaining technological superiority against established glazing manufacturers.
Financial Statements
Income Statement
Balance Sheet
Cash Flow
| Metric | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Revenue | $0 | $0 | $0 | $0 |
| Cost of Revenue | $0 | $0 | $0 | $0 |
| Gross Profit | $0 | $0 | $0 | $0 |
| Operating Expenses | $4.6M | $2.3M | $2.6M | $2.4M |
| Operating Income | $-4.6M | $-2.3M | $-2.6M | $-2.4M |
| R&D | $1.1M | $764.8K | $594.0K | $621.9K |
| G&A | $3.5M | $1.5M | $2.0M | $1.7M |
| Stock-Based Comp | $1.0M | $159.4K | $403.5K | $103.1K |
| D&A | — | $14.7K | $11.1K | $8.1K |
| Depreciation | $30.0K | $14.7K | $11.1K | $8.1K |
| Other OpEx | $0 | $0 | $0 | $0 |
| Non-Operating Income | $-321.4K | $-44.3K | $-449.5K | $98.5K |
| Pre-Tax Income | $-4.9M | $-2.4M | $-3.1M | $-2.3M |
| Income Tax | $0 | $-290.8K | $0 | $-45.9K |
| Continuing Ops | $-4.9M | $-2.1M | $-3.0M | $-2.2M |
| Discontinued Ops | $0 | $-331.9K | $-7.9K | $-45.9K |
| Net Income | $-4.9M | $-2.4M | $-3.5M | $-2.3M |
| Minority Interest | $0 | $0 | $0 | $0 |
| Net to Common | $-4.9M | $-2.4M | $-3.5M | $-2.3M |
| Metric | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Current Assets | $8.4M | $6.3M | $5.0M | $6.6M |
| Cash & Equivalents | $8.1M | $492.6K | — | $6.6M |
| Marketable Securities | — | $5.5M | $3.0M | — |
| Prepaid Expenses | $130.8K | $241.7K | $681.5K | $15.8K |
| Other Current Assets | $153.8K | $70.2K | $1.3M | $30.7K |
| Long-Term Assets | $1.3M | $1.3M | $13.5K | $43.1K |
| PP&E (Net) | $1.3M | $1.3M | $13.5K | $43.1K |
| Other LT Assets | $0 | $0 | $0 | $0 |
| Total Assets | $9.7M | $7.6M | $5.0M | $6.6M |
| Current Liabilities | $118.4K | $287.2K | $321.5K | $194.2K |
| Long-Term Liabilities | $0 | $0 | $0 | $0 |
| Total Liabilities | $118.4K | $287.2K | $321.5K | $194.2K |
| Shareholders' Equity | $9.6M | $7.3M | $4.7M | $6.5M |
| Paid-In Capital | $82.6M | $82.7M | $83.5M | $87.5M |
| Retained Earnings | $-73.0M | $-75.4M | $-78.8M | $-81.1M |
| AOCI | $-73.6K | $-78.2K | $-76.7K | — |
| Total L&E | $9.7M | $7.6M | $5.0M | $6.6M |
| Metric | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Net Income (CFO) | $-4.9M | $-2.4M | $-3.5M | $-2.3M |
| Non-Cash Adjustments | $1.3M | $120.2K | $1.9M | $1.6M |
| Working Capital Changes | $28.4K | $191.5K | $-143.9K | $-819.5K |
| Cash from Operations | $-3.6M | $-2.1M | $-1.7M | $-1.5M |
| Capital Expenditures | $357.0K | $0 | $1.9K | $37.7K |
| Cash from Investing | $4.6M | $-5.5M | $2.5M | $3.0M |
| Cash from Financing | $0 | $0 | $0 | $3.8M |
| FX Effect | $-51.8K | $-505 | $-1 | $0 |
| Net Change in Cash | $950.4K | $-7.6M | $756.8K | $5.3M |
| Beginning Cash | $7.1M | $8.1M | $492.6K | $1.2M |
| Ending Cash | $8.1M | $492.6K | $1.2M | $6.6M |
Frequently Asked Questions
How does SolarWindow Technologies, Inc. make money?
The company's financial structure indicates a focus on research and development rather than diversified revenue streams, with operations currently limited to product development and patent licensing initiatives within the smart building sector. With zero reported cost of revenue and no operating income, the business model relies heavily on paid-in capital to fund technology maturation and future commercialization efforts.
What are the main risks for WNDW?
The company faces severe liquidity risk with no commercial revenue and a cumulative retained earnings deficit exceeding $81 million over the reporting period. Operational viability is threatened by the lack of gross profit generation and negative operating cash flows that have persisted through multiple years. Investors must consider the high dilution risk associated with frequent financing activities required to sustain R&D expenditures in the absence of product sales.
What is WNDW's competitive advantage?
The company holds a unique technological moat through its proprietary electrochromic window technology that simultaneously generates electricity and provides passive solar control. WNDW possesses a strong intellectual property portfolio with significant R&D investments aimed at protecting its manufacturing processes and product designs. The firm maintains a highly leveraged balance sheet relative to its asset base, utilizing substantial paid-in capital ($87.5M) to fund long-term development without immediate revenue pressure.
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Not financial advice. All content is for informational purposes only. Data may contain errors. Consult a qualified financial advisor before making investment decisions.