What Changed
Price Move History
- Daily moves over 5%
- 121 252 sessions, October 17, 2025 to October 19, 2026
- Largest daily move
- +135.3% close of August 26, 2026
- 1-year change
- +167.2% closing prices, October 17, 2025 to October 19, 2026
- 1-month change
- +8% closing prices, September 18, 2026 to October 19, 2026
Company Description
SolarWindow Technologies, Inc. (symbol: WNDW) is a Nevada-based company focused on the development of transparent electricity-generating coatings and related processes for use on glass and plastics. According to the company’s public disclosures, its proprietary LiquidElectricity® technology is designed to generate electricity when applied to otherwise ordinary glass surfaces, producing power under natural, artificial, low, shaded, and reflected light conditions. SolarWindow positions its technology as an alternative to conventional solar panels, targeting applications where transparency, aesthetics, and integration into existing surfaces are important.
Business focus and core technology
SolarWindow describes itself as a developer of transparent LiquidElectricity® coatings and processes that can be applied to glass and plastic substrates. When these coatings are applied to glass, they are intended to create electricity-generating windows and other transparent products. The company states that its technology is capable of harvesting light energy from a range of lighting conditions, including natural sunlight and artificial light, as well as low, shaded, or reflected light.
The company has repeatedly emphasized that it targets applications beyond conventional solar panels. Rather than focusing on opaque rooftop or ground-mounted modules, SolarWindow highlights the potential use of its coatings on architectural and other transparent or semi-transparent surfaces.
Target applications and markets
Based on its press releases and SEC filings, SolarWindow is directing its technology toward multiple application areas:
- Architectural glass – including building windows, facades, and rooftops, where LiquidElectricity® coatings could turn large glass areas into electricity-generating surfaces while maintaining transparency and architectural aesthetics.
- Mobility and transportation – the company references potential use in automotive and marine applications, where glass or plastic surfaces could be used to generate power.
- Commercial greenhouse applications – where transparent electricity-generating glass could be used in structures that require light transmission.
- Aerospace and other specialty uses – SolarWindow mentions aerospace and other specialty markets as part of the broad utility it envisions for its technology.
In its descriptions, SolarWindow notes that LiquidElectricity® coatings are intended to provide transparent, aesthetically focused power generation, which the company associates with the potential for faster financial breakeven compared with conventional approaches, while also emphasizing visual appeal for buildings and other structures.
Partnership and collaboration approach
SolarWindow’s public communications indicate a partnership-driven commercialization strategy. The company has highlighted a signed Framework Agreement with Lippert Components, Inc., described as a Fortune 1000 company and a major non-float glass manufacturer. Under this collaboration, SolarWindow and Lippert are jointly pursuing the integration of SolarWindow technologies into select Lippert components to produce transparent electricity-generating SolarWindow–Lippert products.
According to SolarWindow, this collaboration is focused on potential integration of its transparent coatings into products for recreational vehicles, marine vessels, and specialty building products. The company notes that there is no assurance that these development efforts will result in definitive commercial agreements or successfully engineered, manufactured, or deployed products, but it presents this relationship as a key part of its commercialization efforts.
SolarWindow also reports that it is engaged in discussions with additional partners across architectural glass, plastics, specialty materials, and advanced manufacturing, and that it prioritizes working with established manufacturers that already operate global production platforms. The company states that this approach is intended to support scaling, manufacturing readiness, and integration of electricity-generating glass into real-world products.
Intellectual property and technology protection
SolarWindow repeatedly emphasizes its intellectual property portfolio as a central element of its business. The company has stated in earlier communications that its technologies, products, methods, and materials are the subject of numerous granted and in-process trademark and patent filings. It has also highlighted that its technology has been the subject of hundreds of awarded patent claims and additional claims in process in the United States and selected international jurisdictions.
In more recent shareholder communications, SolarWindow reports that it has expanded its intellectual property estate with new patents covering advanced coating formulations, flexible substrate integration, and transparent power module designs. The company notes that these protections include patents related to virtually invisible “power-line” technology, which it describes as micro-scale power-transport lines embedded in glass that carry electricity generated from sunlight while maintaining a clear, unobstructed view through the glass.
SolarWindow states that these patents and patent applications are intended to protect the manufacturing methods, structural device architectures, and aesthetic performance of its electricity-generating glass products, and that it is pursuing a multi-year global IP strategy across key markets including the United States, Europe, and China.
Capital formation and corporate developments
The company has disclosed several financing and corporate events that frame its development stage:
- In June 2025, SolarWindow announced the closing of a $3.9 million capital raise through concurrent domestic and offshore private offerings, involving units consisting of common stock and warrants. The company indicated that these funds are intended to support commercialization initiatives, manufacturing readiness with industry partners, and activities such as engineering, supply chain development, and product validation.
- SolarWindow subsequently filed a registration statement on Form S-1 to register shares issued or issuable in connection with that private placement, describing itself as a smaller reporting company and outlining the resale of shares by selling stockholders.
- Earlier, in December 2021, SolarWindow reported that Light Quantum Energy Holdings, a company owned and controlled by a member of management and his immediate family, had acquired a majority of the company’s issued and outstanding shares from the former controlling stockholder in a privately negotiated transaction.
In its shareholder communications, SolarWindow has also referred to strengthening its balance sheet, deepening its leadership team, and extending its geographic reach through partnerships, while noting that it continues to focus on commercialization of transparent electricity-generating products.
Reporting status and regulatory context
SolarWindow trades under the symbol WNDW on the over-the-counter market. The company has disclosed that it experienced delays in filing certain periodic reports, including its Form 10-K for the fiscal year ended August 31, 2022 and related Forms 10-Q, and that these delays led to market transaction restrictions in its stock on the OTC Markets, including an Expert Market designation and warnings about unsolicited quotes only.
SolarWindow has reported taking legal and organizational steps involving its Korean subsidiary to obtain required financial and banking information, appoint new directors and an auditor at the subsidiary level, and complete audits necessary to bring its SEC reporting current. The company has stated that it intends to continue providing updates to stockholders about its filing status and that delays in filings can have regulatory and market repercussions affecting trading in its securities.
Headquarters and corporate structure
According to its SEC filings, SolarWindow Technologies, Inc. is incorporated in Nevada and maintains principal executive offices in Scottsdale, Arizona. The company identifies itself as a smaller reporting company under SEC rules. It has also disclosed operations and a subsidiary in South Korea in connection with its manufacturing and development efforts.
Mission and stated objectives
SolarWindow summarizes its mission through what it calls the SolarWindow Promise: to engineer, design, and ultimately manufacture and deliver LiquidElectricity® products that provide customers with affordable clean energy for a healthier, safer, and more sustainable planet. The company presents its technology as a way to transform glass and plastic surfaces into transparent clean-energy generators and uses the phrase “SolarWindow is ClearlyElectric®” in its branding.
How WNDW stock is positioned for investors
For investors researching WNDW stock, SolarWindow represents a development-stage company in the area of transparent electricity-generating coatings and processes. Public information emphasizes its focus on intellectual property, partnerships with established manufacturers, and efforts to move from technology development toward commercialization. At the same time, the company’s disclosures highlight regulatory and market considerations related to its reporting status, financing structure, and the inherent uncertainties associated with product development and commercialization.
Stock Performance
SOLARWINDOW TECH (WNDW) closed at $1.75 on October 19, 2026. Over the past 12 months, the price has gained 167.2%.
WNDW Metrics & Rankings
Price returns through October 19, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
SOLARWINDOW TECH has 10 recent news articles. Of the recent coverage, 7 articles coincided with positive price movement and 2 with negative movement. Key topics include management, earnings, acquisition. View all WNDW news →
SEC Filings
SOLARWINDOW TECH has filed 10 recent SEC filings, including 3 Form 10-Q, 2 Form S-1/A, 2 Form 8-K, 1 Form EFFECT. The most recent filing was submitted on July 13, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all WNDW SEC filings →
Financial Highlights
operating income reached -$2.4M, and net income was -$2.3M. Diluted earnings per share stood at -$0.04. The company generated -$1.5M in operating cash flow. The current ratio was 34.00, measuring current assets divided by current liabilities.
Upcoming Events
Short Interest History
Short interest in SOLARWINDOW TECH (WNDW) currently stands at 192.0 thousand shares, down 0.3% from the previous reporting period, representing 1.0% of the float.
Days to Cover History
Days to cover for SOLARWINDOW TECH (WNDW) currently stands at 2.6 days, up 14.5% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has decreased by 62.6%. Across the settlements charted above, it has ranged from 1.0 to 10.1 days.
WNDW Company Profile & Sector Positioning
SOLARWINDOW TECH (WNDW) operates in the Utilities - Renewable industry within the broader Utilities sector and is listed on the OTC.
Investors comparing WNDW often look at related companies in the same sector, including Bimergen Energy Corporation (BESS), AKER HORIZONS ASA (AKHOF), AZURE POWER GLOBAL LTD (AZREF), CLEAN VISION CORPORATION (CLNV), and HELIOGEN INC (HLGN). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate WNDW's relative position within its industry.