Aspen Aerogels, Inc. (ASPN)
ASPN moved a median of -0.05% 30 minutes after news, and -0.71% by the close. How ASPN actually reacts to news — the realized, point-in-time move the market made, measured across 254 labeled events over the last three years with zero look-ahead.
ASPN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.24% | 56% | 254 |
| 30-min | -0.05% | 47% | 254 |
| 60-min | +0.03% | 50% | 254 |
| to close | -0.71% | 44% | 253 |
| Middle 50% of ASPN reactions | -1.23% to +1.59% |
|---|---|
| Median reaction (30-min) | -0.05% |
| Measured reactions | 254 |
Half of all Aspen Aerogels, Inc. news events land between -1.23% and +1.59% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ASPN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 10 | -0.38% | 40% | -1.55% |
| Analyst downgrades | 13 | -2.76% | 8% | -3.40% |
| Rating reiterations | 52 | +0.10% | 54% | +0.33% |
| Price-target raises | 12 | -0.06% | 42% | +1.84% |
| Price-target cuts | 16 | -0.78% | 44% | -0.66% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 1 further class was observed with fewer than 10 measured events and is not published. See how ASPN ranks against every other measured name →
That’s how ASPN usually reacts — get an email when it moves on news →Email me when ASPN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ASPN's baseline. Nothing else.
Recent ASPN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K ASPEN AEROGELS INC For: Sep 15 | SEC filing · Form 8-K | SEC EDGAR | +0.62% | +0.00% | |
| Form 10-Q ASPEN AEROGELS INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.36% | — | |
| Aspen Aerogels, Inc. Reports Second Quarter 2026 Financial Results and Recent Business Highlights | Press release | GlobeNewswire | +12.48% | -2.27% | |
| Form 8-K ASPEN AEROGELS INC For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +12.48% | -2.27% | |
| Aspen Aerogels, Inc. to Present at the 29th Annual Oppenheimer Conference | Press release | GlobeNewswire | -1.38% | -0.99% | |
| Aspen Aerogels, Inc. Schedules Second Quarter 2026 Earnings Release and Conference Call | Press release | GlobeNewswire | -0.78% | -9.32% | |
| Aspen Aerogels Named a 2025 Supplier of the Year by General Motors | Press release | GlobeNewswire | -1.20% | +6.86% | |
| Form 8-K ASPEN AEROGELS INC For: May 12 | SEC filing · Form 8-K | SEC EDGAR | -0.96% | -2.50% | |
| Aspen Aerogels Begins Staged Restart of East Providence Facility | Press release | GlobeNewswire | +0.62% | -0.71% | |
| Form 10-Q ASPEN AEROGELS INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +8.12% | +1.79% | |
| Aspen Aerogels, Inc. Reports First Quarter 2026 Financial Results and Recent Business Highlights | Press release | GlobeNewswire | +5.85% | +8.24% | |
| Form 8-K ASPEN AEROGELS INC For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +5.85% | +8.24% | |
| Aspen Aerogels, Inc. Schedules First Quarter 2026 Earnings Release and Conference Call | Press release | GlobeNewswire | +0.46% | +3.07% | |
| Aspen Aerogels Provides East Providence Facility Update | Press release | GlobeNewswire | +1.12% | -8.71% | |
| Form 8-K ASPEN AEROGELS INC For: Apr 21 | SEC filing · Form 8-K | SEC EDGAR | +1.12% | -8.71% | |
| Aspen Aerogels Provides Update on Incident at East Providence Facility | Press release | GlobeNewswire | -1.65% | +3.03% | |
| Form ARS ASPEN AEROGELS INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.45% | -4.80% | |
| Form DEF 14A ASPEN AEROGELS INC For: May 13 | SEC filing · Form DEF | SEC EDGAR | +0.45% | -4.80% | |
| Form DEFA14A ASPEN AEROGELS INC | SEC filing · Form DEFA14A | SEC EDGAR | +0.45% | -4.80% | |
| Form 10-K/A ASPEN AEROGELS INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +2.99% | +1.89% | |
| Aspen Aerogels, Inc. to Participate in the 38th Annual Roth Conference | Press release | GlobeNewswire | +1.18% | -2.66% | |
| Form 10-K ASPEN AEROGELS INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.80% | -9.36% | |
| Form PRE 14A ASPEN AEROGELS INC For: May 13 | SEC filing · Form PRE | SEC EDGAR | +0.80% | -9.36% | |
| Aspen Aerogels, Inc. Reports Fourth Quarter and Full Year 2025 Financial Results and Recent Business Highlights | Press release | GlobeNewswire | -4.51% | +0.78% | |
| Form 8-K ASPEN AEROGELS INC For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | -4.51% | +0.78% | |
| Aspen Aerogels, Inc. Schedules Fourth Quarter and Fiscal Year 2025 Earnings Release and Conference Call | Press release | GlobeNewswire | -1.47% | -3.23% | |
| Form 8-K ASPEN AEROGELS INC For: Dec 16 | SEC filing · Form 8-K | SEC EDGAR | +2.33% | -3.65% | |
| Aspen Aerogels Announces Amendment to MidCap Credit Facility | Press release | GlobeNewswire | +2.33% | -3.65% | |
| Aspen Aerogels, Inc. Reports Third Quarter 2025 Financial Results and Recent Business Highlights | Press release | GlobeNewswire | -0.98% | -19.41% | |
| Form 10-Q ASPEN AEROGELS INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.21% | +0.00% | |
| Form 8-K ASPEN AEROGELS INC For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | -0.98% | -19.41% | |
| Aspen Aerogels, Inc. Schedules Third Quarter 2025 Earnings Release and Conference Call | Press release | GlobeNewswire | -0.77% | -8.78% | |
| Aspen Aerogels, Inc. Appoints Glenn Deegan as Chief Administrative Officer | Press release | GlobeNewswire | -1.48% | +7.38% | |
| Form 8-K ASPEN AEROGELS INC For: Sep 05 | SEC filing · Form 8-K | SEC EDGAR | -1.17% | -3.65% | |
| Aspen Aerogels, Inc. to Participate in the Barclays 39th Annual Energy-Power Conference | Press release | GlobeNewswire | -0.50% | +0.99% | |
| Aspen Aerogels, Inc. Reports Second Quarter 2025 Financial Results and Recent Business Highlights | Press release | GlobeNewswire | +7.22% | -15.89% | |
| Form 10-Q ASPEN AEROGELS INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -3.10% | +1.61% | |
| Form 8-K ASPEN AEROGELS INC For: Aug 07 | SEC filing · Form 8-K | SEC EDGAR | +7.22% | -15.89% | |
| Aspen Aerogels to Participate in August Investor Conferences | Press release | GlobeNewswire | -0.07% | +2.29% | |
| Aspen Aerogels, Inc. Schedules Second Quarter 2025 Earnings Release and Conference Call | Press release | GlobeNewswire | +1.80% | +4.55% | |
| Aspen Aerogels, Inc. to Participate in the B. Riley Securities 25th Annual Investor Conference | Press release | PR Newswire | +2.41% | -1.38% | |
| Aspen Aerogels, Inc. Reports First Quarter 2025 Financial Results and Recent Business Highlights | Press release | PR Newswire | -0.04% | +0.70% | |
| Form 10-Q ASPEN AEROGELS INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.13% | +12.24% | |
| Form 8-K ASPEN AEROGELS INC For: May 08 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | +0.70% | |
| Form S-8 ASPEN AEROGELS INC | SEC filing · Form S-8 | SEC EDGAR | -1.13% | +12.24% | |
| Form 8-K ASPEN AEROGELS INC For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -0.18% | +2.64% | |
| Aspen Aerogels, Inc. Schedules First Quarter 2025 Earnings Release and Conference Call | Press release | PR Newswire | +0.39% | +0.39% | |
| Form ARS ASPEN AEROGELS INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -2.48% | -3.03% | |
| Form DEF 14A ASPEN AEROGELS INC For: Apr 30 | SEC filing · Form DEF | SEC EDGAR | -2.48% | -3.03% | |
| Form DEFA14A ASPEN AEROGELS INC | SEC filing · Form DEFA14A | SEC EDGAR | -2.48% | -3.03% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ASPN section they belong to.
Where else ASPN is measured.
ASPN earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| CHINA CERAMICS CO (CCCL) | 256 | -0.01% | 39% |
| SenesTech, Inc. (SNES) | 256 | -0.54% | 32% |
| First Mining Gold Corp (FF_TSE) | 254 | 0.00% | 23% |
| Mkango Resources Ltd (MKA_CDNX) | 254 | 0.00% | 6% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Basic Materials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Aspen Aerogels, Inc.'s median reaction calculated?
Every labeled ASPN news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 254 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 47% of ASPN's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does ASPN's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.