ASPN Stock — Aspen Aerogels, Inc.

Aspen Aerogels, Inc. (ASPN)

Updated October 16, 2026.

ASPN is a Stock. Total return is -51.7% over the past 12.3 years, 436.1 points behind SPY at 384.4%.

Aspen Aerogels is an aerogel technology company that designs, develops, manufactures, and sells specialized insulation materials for the energy industrial, sustainable insulation, and electric vehicle markets globally. The company produces thermal barrier products for EV battery packs, high-temperature insulation for refining and chemical processing, cryogenic insulation, and subsea pipe protection materials, serving EV manufacturers, battery makers, and energy companies. The company does not currently have an established distribution schedule.

ASPN performance versus SPY

Price and return data through 2026-10-16.

Total return is -51.7% over the past 12.3 years, 436.1 points behind SPY at 384.4%. Over the past year its total return — price change plus distributions reinvested — is -37.5%. Its deepest 1-year drawdown was 69.8%.

ASPN key facts

Asset type

Stock

Asset class

Equity

Inception date

06/13/2014

Distribution frequency

None

Last close

$5.19 (as of 2026-10-16)

Market cap

$430,711,789

Average volume

883369.0

Beta

3.057

Payout ratio

0.0%

Forward P/E

714.2857

EPS

$-1.53

How Dividend Vision calculates yield and returns

Distribution rate (the posted rate) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

ASPN risks and drawbacks

Total return has trailed SPY over the available window. The deepest 1-year drawdown on record here is 69.8%.

Who may consider ASPN — and who may not

It is a weaker fit for investors who need monthly cash flow (ASPN does not currently distribute); investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

More on ASPN

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Tagged: Materials, Electric Vehicles.

Frequently asked questions