Aspen Aerogels shows early signs of volume accumulation near 52-week lows, but weak margins keep quality below the engine's floor, the analyst target has already been reached, and a volatile earnings history and elevated short interest add risk.
Thesis pillars
- Quality Below Engine Floor→Stable
- Target Reached Negative Asymmetry→Stable
- High Short Interest Risk→Stable
- +2 more pillars — see the Why tab for full reasoning
Aspen Aerogels, Inc. (ASPN) Stock Analysis
Inst Constrain edge
Industrials · Building Products & Equipment
Sell if holding. Engine safety override at $5.02: Quality below floor (2.2 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 4.7/10. Specifically: High short interest: 10%; Below-average business quality; Negative price momentum.
Aspen Aerogels designs, develops, and manufactures aerogel insulation materials across two segments: Thermal Barrier (PyroThin products for EV battery packs, sold primarily to General Motors) and Energy Industrial (Pyrogel and Cryogel insulation for oil, gas, and petrochemical... Read more
Sell if holding. Engine safety override at $5.02: Quality below floor (2.2 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 4.7/10. Specifically: High short interest: 10%; Below-average business quality; Negative price momentum. Chart setup: No clear chart pattern; technical signals are mixed. Score 4.7/10, moderate confidence.
Passes 5/8 gates (clean insider activity, news events none recent, earnings proximity 29d clear, semi cycle peak clear, materials cycle peak clear). Fails on weak momentum and favorable risk/reward ratio. Suitability: speculative.
About Aspen Aerogels, Inc.
About Aspen Aerogels, Inc.
Aspen Aerogels' revenue fell to $271.1 million in 2025 from $452.7 million in 2024 after General Motors, its largest thermal-barrier customer, reduced demand for the company's PyroThin EV battery aerogel products, which still generated $168.9 million of 2025 sales. The company operates two segments, Thermal Barrier (EV lithium-ion battery protection) and Energy Industrial (Pyrogel and Cryogel insulation for refineries and LNG facilities), with U.S. shipments representing $172.1 million of the total.
Aspen Aerogels sells PyroThin thermal barriers to automotive OEMs, including GM, Toyota, Scania, Automotive Cells Company, Audi, and Volvo Truck, under multi-year production contracts running from 2030 through 2034 that specify fixed prices and maximum daily volumes but carry no minimum purchase commitments and permit unilateral termination by the customer. Energy Industrial insulation is sold through a direct sales force and a network of distributors and contractors in more than 50 countries to customers such as ExxonMobil, Reliance Industries, PTT LNG, and Royal Dutch Shell for use in refineries, petrochemical plants, and LNG facilities, a business the company says is less exposed to economic cycles because much of its demand comes from non-discretionary maintenance rather than new capital projects. Manufacturing is concentrated at a single facility in East Providence, Rhode Island, supplemented by contract manufacturing in China for Energy Industrial products and a Mexico facility, OPE, that fabricates PyroThin parts, all financed in part through an amended MidCap Loan Facility maturing August 2029 with liquidity and EBITDA covenants.
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Aspen's PyroThin franchise carries concentrated, contractually unprotected customer risk: GM accounted for the large majority of the segment's $168.9 million of 2025 sales, yet the GM Contracts obligate GM to no minimum purchase volume and let GM terminate at any time for any reason, a structure that materialized into an actual revenue hit when GM reduced its aerogel demand during 2025, contributing to total revenue falling 40% year over year. Because Aspen must still supply Barriers up to a daily maximum quantity and has already sunk capital into capacity built for GM's originally projected volumes, a further pullback from GM, or a failure of newer OEM relationships with Toyota, ACC, Audi, and Volvo Truck to scale, would leave underutilized capacity weighing on margins.
See also: Industrials · Building Products & Equipment
From Aspen Aerogels, Inc.'s most recent 10-K filing, extracted July 6, 2026.
Upcoming dated catalysts
Thesis
Key Metrics
Quality Signals
Options Flow
Concentration Risks(10-K Item 1A)
- HIGHCustomerGM10-K Item 1: 'During 2025, 2024 and 2023, we sold $168.9 million, $306.8 million and $110.1 million, respectively, of our PyroThin thermal barriers, primarily to GM.'
Material Events(8-K, last 90d)
- 2026-05-18Item 5.02LOWOn May 13, 2026, the Board designated CFO Grant Thoele as principal accounting officer in addition to his existing roles, succeeding Santhosh P. Daniel in that function; routine internal reassignment, no dispute cited.SEC filing →
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Rating Breakdown
4 floor-breakers
Unprofitable operations — net margin -48.6%. Quality floor flags this regardless of sector context.static
Price action weak — below key moving averages, no momentum carry. Needs a base before trend-continuation setups apply.static
No near-term catalyst priced in. Thesis progression will come from fundamentals grinding, not event reaction.static
Ranks in the bottom of its industry peers on the composite signal. Better names in the same sector exist.static
Price Targets
Position Sizing
Risk Alerts
Earnings
Verdict History
Frequently Asked Questions
Sell if holding. Engine safety override at $5.02: Quality below floor (2.2 < 4.0) triggers a hard block regardless of the otherwise-positive setup — overall score 4.7/10. Specifically: High short interest: 10%; Below-average business quality; Negative price momentum. Chart setup: No clear chart pattern; technical signals are mixed. Prior stop was $4.89. Score 4.7/10, moderate confidence.
Take-profit target: $5.52 (+6.4% upside). Prior stop was $4.89. Stop-loss: $4.89.
Concentration risk — Customer: GM; Quality below floor (2.2 < 4.0).
Aspen Aerogels, Inc. trades at a P/E of N/A (forward -52.4). TrendMatrix value score: 7.2/10. Verdict: Sell.
12 analysts cover ASPN with a consensus score of 3.8/5. Average price target: $6.
What does Aspen Aerogels, Inc. do?Aspen Aerogels designs, develops, and manufactures aerogel insulation materials across two segments: Thermal Barrier...
Aspen Aerogels designs, develops, and manufactures aerogel insulation materials across two segments: Thermal Barrier (PyroThin products for EV battery packs, sold primarily to General Motors) and Energy Industrial (Pyrogel and Cryogel insulation for oil, gas, and petrochemical facilities). Total revenue fell to $271.1 million in 2025 from $452.7 million in 2024 after GM reduced its aerogel demand; the company sold $168.9 million of PyroThin products in 2025, primarily to GM, and manufactures at a single facility in East Providence, Rhode Island, supplemented by contract manufacturing in China