Stocks · Basic Materials · Chemicals - Specialty

Aspen Aerogels, Inc. ASPN

$5.69 +2.34% Close, Oct 2, 2026 · NYSE · Market cap $471.6M

High qualityHigh risk

Next earnings report: Nov 5, 2026

Scroll or pinch to zoom, drag to move. Daily prices adjusted for splits. Markers: E = earnings (green beat, red miss), S = split, D = dividend.

Three things to know

  1. Operating margin widened to 100.9% from -68.6% a year earlier.
  2. Revenue over the last four quarters was $202.1M, down 49.1% from a year earlier.
  3. The stock is in an uptrend: above its 200-day average for 46 trading days, with the 50-day average above the 200-day.

PromtFinance scores

Each score is a percentile within the Basic Materials sector (0–100). Under each score: how the stock ranks in its sector on every component. As of Oct 5, 2026.

Growth25Very weak

How fast revenue, earnings and cash flow are growing.

  • Revenue growth (TTM, YoY)Bottom 2%
  • Revenue growth, 3-year CAGRTop 15%
  • Revenue growth accelerationBottom 26%
Quality96Exceptional

Returns on capital, margins, earnings quality and balance-sheet strength.

  • Return on invested capitalTop 1%
  • Gross marginBottom 7%
  • Operating marginTop 1%
  • Accruals (lower is better)Top 3%
  • Interest coverTop 8%
Value27Very weak

How cheap the shares are relative to earnings, cash flow and their own history.

  • Earnings yieldBottom 8%
  • Free-cash-flow yieldTop 17%
  • EBITDA / enterprise valueBottom 5%
  • Sales / enterprise valueBottom 46%
Momentum52Neutral

Strength and persistence of the price trend, including versus the S&P 500.

  • 12-month return excluding last monthBottom 8%
  • 6-month returnTop 3%
  • 1-year return vs S&P 500Bottom 21%
  • Distance from 52-week highBottom 34%
  • Trend checklist (0–4)Top 4%
Revisions17Very weak

Earnings surprises and analyst sentiment (estimate-revision history is being collected).

  • Average EPS surprise, last 4 quartersBottom 16%
  • Consecutive EPS beatsBottom 21%
  • Share of analysts rating BuyTop 16%
  • Upside to consensus price targetBottom 16%
Stability4Very weak

Low volatility, shallow drawdowns, low market sensitivity and modest leverage.

  • Volatility, 60 days (lower is better)Bottom 7%
  • Maximum drawdown, 3 yearsBottom 2%
  • Beta vs S&P 500 (lower is better)Bottom 12%

What changed

Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).

MeasureBeforeNow
Revenue growth (YoY)-47.3%-49.1%↓
Gross margin36.3%2.7%↓
Operating margin-68.6%100.9%↑
FCF margin-0.8%18.6%↑

Fundamental momentum

MeasureNow (TTM)Year / quarter beforeSector rank
Revenue growth (TTM, YoY)-49.1%-47.3%↓Bottom 2%
Gross margin2.7%36.3%↓Bottom 7%
Operating margin100.9%-68.6%↑Top 1%
Net margin-62.4%-78.5%↑—
Free-cash-flow margin18.6%-0.8%↑—
Return on invested capital60.3%—Top 1%
Revenue growth, 3-year CAGR14.5%—Top 15%

Quality of earnings and balance sheet

Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
-44.6%
Stock-based compensation / revenueA cost to shareholders through dilution.
1.9%
Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
+2.0 pp
Net debt / EBITDABelow 1× is conservative; above 3× is high leverage.
Net cash
Interest cover (operating income / interest)How many times operating profit covers interest.
38.5×

Shareholder returns

Dividend yield (dividends paid, TTM)
0.00%
Net buyback yield (TTM)
-0.35%
Shareholder yield
-0.35%
Share count change, 1 year
+0.9%
Share count change, 3-year CAGR
+6.2%

Shareholder yield = dividends + net buybacks over the last four quarters, divided by market cap.

Based on the four quarters through Jun 30, 2026 (filed Aug 7, 2026).

Earnings and expectations

Earnings momentum

Consecutive EPS beats
0
Beats in the last 8 reports
2 of 8
Average EPS surprise, last 4
-73.2%
Average 2-day reaction, last 8
-6.9%
Positive 20 days after report
2 of 8

Analysts

Consensus price target
$6.38
Target vs current price
+12.1%
Analysts with a rating
23
Share rating Buy or Strong Buy
83%
Consensus rating
Buy

How the stock reacted to recent reports

Report dateEPS surprise2 days5 days20 days60 days
Aug 6, 2026-23.1%+37.5%+22.8%-1.8%—
May 7, 2026-3.7%+24.3%+31.1%+51.2%+14.8%
Feb 25, 2026-225.9%-27.8%-6.2%-9.0%+43.3%
Nov 6, 2025-40.1%-44.5%-53.7%-51.0%-54.8%
Aug 7, 2025+8.3%-8.1%-9.3%-22.9%-8.6%
May 8, 2025-5142.9%-24.3%+0.7%+1.8%+38.5%
Feb 12, 2025+275.0%-3.2%-31.6%-39.3%-64.5%
Nov 6, 2024-70.0%-8.9%-14.6%-22.5%-37.3%

Returns from the close before each report. Past reactions do not determine future ones.

Earnings history

Report dateEPSEstimateSurpriseRevenue
Aug 6, 2026-$0.28-$0.23-23.1%$49.8M
May 7, 2026-$0.28-$0.27-3.7%$37.9M
Feb 25, 2026-$0.88-$0.27-225.9%$41.3M
Nov 6, 2025-$0.06-$0.04-40.1%$73.0M
Aug 7, 2025-$0.11-$0.12+8.3%$78.0M
May 8, 2025-$3.67-$0.07-5142.9%$78.7M
Feb 12, 2025$0.15$0.04+275.0%$123.1M
Nov 6, 2024-$0.17-$0.10-70.0%$117.3M

Valuation in context

MultipleNow5-year median5-year percentileSector rank (cheapness)
EV / Sales2.20×——Bottom 46%
Free-cash-flow yield7.96%——Top 17%
Earnings yield-26.89%——Bottom 8%

Technical state

Trend checklist

  • ✓ Price above 20-day average
  • ✓ Price above 50-day average
  • ✓ Price above 200-day average
  • ✓ 50-day average above 200-day
  • ✓ MACD histogram positive

Trend quality

Days above the 50-day average
4
Days above the 200-day average
46
50-day average slope (20 days)
-1.9%
200-day average slope (20 days)
+4.5%
Distance from 50-day average
+9.1%
Distance from 200-day average
+28.2%
RSI (14)
61.7
Relative volume
0.89×

Risk and drawdowns

Volatility, 60 days (annualized)
90.0%
Volatility vs own 5-year history
65th percentile · Normal for this stock
Beta vs S&P 500 (2 years, weekly)
1.75
Correlation with S&P 500
0.34
Current drawdown from 1-year high
-35.5%
Maximum drawdown, 3 years
-91.9%

Largest declines in the past six years

From peakTo lowDeclineLengthRecovery
Nov 18, 2021Feb 25, 2026-96.0%1069 daysNot yet recovered
Feb 10, 2021Apr 20, 2021-34.9%47 days50 days (Jun 30, 2021)
Oct 23, 2020Oct 28, 2020-16.3%3 days19 days (Nov 24, 2020)
Jul 12, 2021Jul 19, 2021-14.6%5 days2 days (Jul 21, 2021)
Jul 28, 2021Aug 16, 2021-13.4%13 days3 days (Aug 19, 2021)

Declines of 10% or more from a closing high, measured on daily closes.

Financial statements

Market cap
$471.6M
EPS, diluted (TTM)
-$1.53
Revenue (TTM)
$202.1M
52-week range
$2.30 – $9.35
FY 2021FY 2022FY 2023FY 2024FY 2025
Revenue$121.6M$180.4M$238.7M$452.7M$271.1M
Gross profit$9.9M$5.0M$56.9M$182.9M$46.0M
Operating income-$40.6M-$79.2M-$49.2M$54.5M-$51.4M
Net income-$37.1M-$82.7M-$45.8M$13.4M-$389.6M
EPS (diluted)-$1.22-$2.19-$0.66$0.17-$4.74
Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Revenue$117.3M$123.1M$78.7M$78.0M$73.0M$41.3M$37.9M$49.8M
Net income-$13.0M$11.4M-$301.2M-$9.1M-$6.3M-$72.9M-$23.7M-$23.3M
EPS (diluted)-$0.17$0.14-$3.67-$0.11-$0.08-$0.88-$0.29-$0.28
FY 2021FY 2022FY 2023FY 2024FY 2025
Operating cash flow-$18.6M-$94.4M-$42.6M$45.5M$32.9M
Capital expenditure-$13.8M-$178.0M-$175.5M-$86.3M-$37.4M
Free cash flow-$32.4M-$272.4M-$218.1M-$40.7M-$4.6M
Dividends paid$0$0$0$0$0
Net share buybacks$94.4M$391.3M$76.5M$93.8M$1.9M

Cash outflows are shown as negative numbers.

Cash and short-term investments
$151.7M
Total assets
$392.9M
Total liabilities
$200.5M
Total debt
$125.1M
Net debt
-$26.6M
Shareholders’ equity
$192.5M

As of Jun 30, 2026 (filed Aug 7, 2026).

Dividends

Ex-dateAmountPaid
Dec 3, 2009$0.73—
Nov 16, 2006$0.05Dec 6, 2006

Short interest

Shares sold short
9,064,528
Days to cover
13.93
Change vs previous report
+7.9%

FINRA short interest, settlement date Sep 15, 2026.