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Aspen Aerogels

ASPN
32
Chemicals - Specialty · Basic Materials
Price
$5.18
+0.07 (+1.37%)
Market Cap
$429.3M
Winston Score
32
Winston is serious
Below-average fundamentals — multiple weak pillars.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Mixed
Growth
Weak
Cash Flow
Mixed
Stability
Mixed
Valuation
Data not available

Share count rising — dilution

+171.6% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 30.4M (2021) → 82.7M (2025)

Winston Score History

The full picture

Aspen Aerogels makes a special type of insulation called aerogel blankets. Aerogel is an extremely lightweight material that blocks heat better than traditional insulation. The company sells these products to two main markets: industrial facilities like oil refineries and pipelines, and electric vehicle manufacturers who use the material to protect battery packs from heat and fire.

The company earns revenue by selling its aerogel products directly to industrial customers and to EV automakers, most notably General Motors. Aspen operates primarily in North America but sells into global markets. Its main competitive advantage is its proprietary aerogel manufacturing process, which is difficult and expensive for competitors to replicate. The biggest growth driver is EV battery thermal management, where demand could rise sharply as automakers scale electric vehicle production — but that also means the company is heavily dependent on the pace of EV adoption, which has been uneven and unpredictable in recent years.

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

-36.1% YoY

YoY Growth Rate

Revenue declining

EPS Growth

-154.5% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$6.3B/ year

Rising (+34776% vs prior year)

>1,000% of revenue

774.0x the sector average (3%)

Investing heavily in future products and technology

Insider Activity

7.4%ownership

Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$152M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Heavy R&D investment

Aspen Aerogels is putting 2322% of revenue into R&D and that number is rising. That's 774.0x the sector average. And they're generating enough cash to self-fund it.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale
Gross Margin
6.5%
Thin — 6.5% gross margin
Profit after running costs
Operating Margin
-57.7%
Losing money on operations — -57.7%
Return on the money invested
ROCE
78.2%
Exceptional — 78.2% return on capital

ROIC above 25%. Every dollar invested in the business earns more than 25 cents back per year.

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Growth

Sales growth
Sales YoY
-49.1%
Shrinking sales (-49.1% YoY)
Profit growth
EPS YoY
N/A
Data not available
How steady the profit is
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash
Cash Conversion
N/A
Data not available
Spare cash per sale
FCF Margin
25.9%
Converts sales into free cash efficiently (25.9%)

Free cash flow margin above 20%. Out of every $100 in sales, more than $20 is real cash they keep.

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Stability

What it owes vs what it owns
Debt / Equity
0.35
Conservative — low debt load (0.35)
Covers its interest
Interest Cover
N/A
Data not available

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Valuation

Price vs profit
P/E Ratio (TTM)
N/M
Negative earnings — P/E not meaningful
Cheaper or dearer next year
P/E vs Forward
N/A
not available
Data not available

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Dividends

Not applicable for this business.
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