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Aspen Aerogels vs Quanex

This page compares Aspen Aerogels Inc and Quanex Building Products Corp, examining their business models, financial performance, and market context. Readers will find a neutral overview of how these companies operate, generate revenue, and position themselves within the wider building materials landscape. The aim is to inform, not to guide specific investments. Educational content, not financial advice.

This page compares Aspen Aerogels Inc and Quanex Building Products Corp, examining their business models, financial performance, and market context. Readers will find a neutral overview of how these c...

Investment Analysis

Aspen Aerogels

ASPN

Pros

Aspen Aerogels holds proprietary aerogel technology applied in energy infrastructure and building markets, supporting sustainability and electrification trends.
Despite recent revenue declines, the company maintains a strong balance sheet with a current ratio near 4 and low debt-to-equity ratio around 0.34.
Segment resilience is seen in Energy Industrial, which grew revenue 7% quarter-over-quarter, partially offsetting declines in the EV-focused Thermal Barrier segment.

Considerations

The company projects a steep negative EPS for 2025, between -4.15 and -4.05, significantly below analyst consensus, indicating continued profitability challenges.
Q3 2025 revenue fell 33.8% year-over-year and the stock price recently dropped sharply following an earnings miss and cautious guidance.
Thermal Barrier revenues, largely tied to the US electric vehicle market, declined 12% quarter-over-quarter amid a reset in that sector, affecting overall performance.

Quanex

NX

Pros

Quanex Building Products generates substantial revenue of $1.63 billion, driven by engineered components for windows and doors in residential and commercial construction.
Recent quarter-over-quarter revenue growth surged 70%, coupled with a solid operating margin around 10%, indicating improving profitability.
The company focuses on innovative, energy-efficient, and sustainable building product solutions aligned with green building industry trends.

Considerations

Quanex has a relatively high P/E ratio of 52.9x reflecting expensive valuation and slim net profit margin around 1.1%, indicating limited current profitability.
The company faces exposure to cyclicality in the construction and real estate markets, which could impact demand for building components.
While revenue growth is strong, return on equity remains modest at 2.2%, suggesting room for improved capital efficiency.

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Frequently asked questions

About The Companies

Aspen Aerogels (ASPN)

Aspen Aerogels Inc (ASPN) develops and sells high-performance aerogel insulation products used to improve energy efficiency across industrial, oil & gas, power and specialty markets. Its lightweight, low-conductivity materials are applied in pipe insulation, industrial equipment, and emerging applications such as electric vehicle thermal management. With a market capitalisation around $652.30M, Aspen is a small-cap company that can offer exposure to materials innovation and decarbonisation trends, but it also faces typical small-company risks such as volatility, margin pressure and dependence on industrial investment cycles. Investors should note potential benefits — differentiated technology and multiple end-markets — alongside risks including customer concentration, production scale-up challenges and cyclical demand. This summary is educational only and not investment advice; consider your risk tolerance and seek personalised guidance from a qualified financial adviser before acting.

Quanex (NX)

Quanex Building Products (NX) supplies engineered components and systems to the fenestration and building-products industry, primarily for windows and doors. The company earns revenue by selling polymer and aluminium components, insulating solutions and value-added assemblies to original equipment manufacturers and distributors. Key drivers include construction and renovation activity, energy-efficiency upgrades, and product mix toward higher-margin systems. Investors should weigh potential benefits from scale, vertical integration and demand for efficient building solutions against cyclical exposure to housing and commercial cycles, sensitivity to commodity and energy costs, and execution risks around capacity and pricing. With a market capitalisation around $704m, Quanex sits in the small-cap space where volatility can be higher and liquidity lower than large-cap peers. This is general educational information, not investment advice — consider your goals and review the company’s latest reports and regulatory filings before making decisions.