NYSE:ASPN | Historical Stock Price | ASPEN AEROGELS INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2014-06-13 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.86$3.79$7.71$15.70$31.95$65.022014-06-132026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$2.13$2.13156,100
2018-12-28$2.17$2.17290,500
2018-12-27$1.73$1.73738,800
2018-12-26$1.61$1.6168,100
2018-12-24$1.90$1.9017,700
2018-12-21$1.96$1.9689,100
2018-12-20$1.98$1.9874,100
2018-12-19$2.25$2.2549,300
2018-12-18$2.31$2.3116,200
2018-12-17$2.55$2.55475,000
2018-12-14$2.50$2.5021,700
2018-12-13$2.60$2.6016,500
2018-12-12$2.61$2.61314,500
2018-12-11$2.68$2.689,000
2018-12-10$2.73$2.7315,800
2018-12-07$2.86$2.86106,500
2018-12-06$2.76$2.7615,500
2018-12-04$2.70$2.70128,700
2018-12-03$3.15$3.1523,000
2018-11-30$3.36$3.36137,300
2018-11-29$3.34$3.344,600
2018-11-28$3.38$3.38120,200
2018-11-27$3.27$3.2710,900
2018-11-26$3.20$3.2021,700
2018-11-23$3.20$3.205,400
2018-11-21$3.25$3.2537,600
2018-11-20$3.17$3.175,900
2018-11-19$3.45$3.4521,800
2018-11-16$3.47$3.472,300
2018-11-15$3.50$3.5053,800
2018-11-14$3.58$3.5816,200
2018-11-13$3.83$3.8320,700
2018-11-12$3.99$3.9910,800
2018-11-09$4.02$4.029,900
2018-11-08$4.01$4.0120,400
2018-11-07$4.00$4.0030,800
2018-11-06$3.96$3.966,200
2018-11-05$3.94$3.9415,000
2018-11-02$3.95$3.9543,700
2018-11-01$3.80$3.802,800
2018-10-31$3.58$3.5853,000
2018-10-30$3.91$3.914,700
2018-10-29$4.01$4.01108,100
2018-10-26$3.86$3.8648,900
2018-10-25$3.90$3.9010,500
2018-10-24$3.69$3.6912,900
2018-10-23$3.64$3.646,600
2018-10-22$3.60$3.601,000
2018-10-19$3.65$3.6526,200
2018-10-18$3.58$3.5840,000
2018-10-17$3.67$3.6741,000
2018-10-16$3.81$3.81808,400
2018-10-15$3.82$3.829,600
2018-10-12$3.97$3.978,500
2018-10-11$3.98$3.9831,400
2018-10-10$4.18$4.1820,800
2018-10-09$4.19$4.199,300
2018-10-08$4.29$4.296,200
2018-10-05$4.54$4.548,200
2018-10-04$4.61$4.6129,800
2018-10-03$4.65$4.6545,000
2018-10-02$4.75$4.7567,400
2018-10-01$4.65$4.6516,600
2018-09-28$4.57$4.5734,500
2018-09-27$4.55$4.5519,300
2018-09-26$4.29$4.2954,000
2018-09-25$4.40$4.40926,100
2018-09-24$4.38$4.382,900
2018-09-21$4.45$4.45120,900
2018-09-20$4.76$4.767,200
2018-09-19$4.83$4.837,100
2018-09-18$4.87$4.872,200
2018-09-17$4.78$4.786,600
2018-09-14$4.83$4.837,300
2018-09-13$4.84$4.8410,200
2018-09-12$4.83$4.832,400
2018-09-11$4.82$4.826,600
2018-09-10$4.84$4.842,800
2018-09-07$4.84$4.8410,500
2018-09-06$4.85$4.855,400
2018-09-05$4.75$4.752,700
2018-09-04$4.66$4.665,100
2018-08-31$4.84$4.841,900
2018-08-30$4.87$4.872,400
2018-08-29$4.82$4.821,900
2018-08-28$4.88$4.884,100
2018-08-27$4.82$4.8216,800
2018-08-24$4.79$4.7942,800
2018-08-23$4.87$4.872,800
2018-08-22$4.91$4.91900
2018-08-21$4.81$4.819,300
2018-08-20$4.82$4.8221,000
2018-08-17$4.79$4.7921,600
2018-08-16$4.80$4.805,000
2018-08-15$4.76$4.7632,200
2018-08-14$4.90$4.9039,000
2018-08-13$5.04$5.0440,400
2018-08-10$5.05$5.0535,800
2018-08-09$4.84$4.8482,600
2018-08-08$4.81$4.818,300
2018-08-07$4.73$4.7313,400
2018-08-06$4.79$4.7922,000
2018-08-03$4.79$4.7977,300
2018-08-02$5.14$5.145,100
2018-08-01$5.18$5.182,900
2018-07-31$5.08$5.086,200
2018-07-30$5.17$5.171,300
2018-07-27$5.22$5.2244,700
2018-07-26$4.84$4.848,800
2018-07-25$4.91$4.911,100
2018-07-24$4.92$4.927,600
2018-07-23$5.01$5.016,600
2018-07-20$5.08$5.081,900
2018-07-19$5.12$5.123,400
2018-07-18$5.15$5.152,300
2018-07-17$5.19$5.194,300
2018-07-16$5.22$5.2223,600
2018-07-13$5.04$5.043,400
2018-07-12$5.10$5.105,900
2018-07-11$4.99$4.9915,000
2018-07-10$4.97$4.9715,900
2018-07-09$5.03$5.0325,400
2018-07-06$4.88$4.8826,500
2018-07-05$4.89$4.8910,000
2018-07-03$4.84$4.847,100
2018-07-02$4.83$4.8312,500
2018-06-29$4.90$4.9049,900
2018-06-28$4.87$4.8744,500
2018-06-27$4.87$4.8733,800
2018-06-26$4.88$4.8866,500
2018-06-25$5.05$5.0523,000
2018-06-22$5.19$5.1933,600
2018-06-21$5.17$5.1718,700
2018-06-20$5.27$5.279,300
2018-06-19$5.24$5.2420,900
2018-06-18$5.20$5.207,100
2018-06-15$5.08$5.0810,500
2018-06-14$5.12$5.1218,200
2018-06-13$5.14$5.1414,000
2018-06-12$5.13$5.13113,400
2018-06-11$5.13$5.1328,000
2018-06-08$5.05$5.0517,300
2018-06-07$5.06$5.0635,000
2018-06-06$5.05$5.0537,300
2018-06-05$5.09$5.0910,800
2018-06-04$5.10$5.1024,900
2018-06-01$5.05$5.0519,300
2018-05-31$5.02$5.0221,600
2018-05-30$5.02$5.0257,700
2018-05-29$4.97$4.979,200
2018-05-25$4.91$4.914,000
2018-05-24$4.85$4.857,300
2018-05-23$4.86$4.8616,100
2018-05-22$4.95$4.956,400
2018-05-21$4.99$4.9922,400
2018-05-18$4.99$4.999,500
2018-05-17$4.96$4.9615,300
2018-05-16$5.00$5.0017,200
2018-05-15$4.99$4.999,600
2018-05-14$5.00$5.0063,000
2018-05-11$4.97$4.9722,700
2018-05-10$5.00$5.00185,000
2018-05-09$4.75$4.7534,700
2018-05-08$4.71$4.7130,700
2018-05-07$4.61$4.6139,600
2018-05-04$4.55$4.5566,600
2018-05-03$4.45$4.451,000
2018-05-02$4.47$4.4723,300
2018-05-01$4.49$4.4910,400
2018-04-30$4.50$4.5012,200
2018-04-27$4.45$4.4511,600
2018-04-26$4.41$4.415,300
2018-04-25$4.45$4.453,000
2018-04-24$4.51$4.514,500
2018-04-23$4.45$4.457,400
2018-04-20$4.54$4.5412,400
2018-04-19$4.44$4.44474,200
2018-04-18$4.38$4.3818,500
2018-04-17$4.34$4.3441,800
2018-04-16$4.47$4.4735,200
2018-04-13$4.41$4.4114,800
2018-04-12$4.29$4.29285,200
2018-04-11$4.10$4.1034,500
2018-04-10$4.14$4.1413,400
2018-04-09$4.03$4.0318,300
2018-04-06$4.18$4.1821,900
2018-04-05$4.14$4.1435,000
2018-04-04$4.15$4.1516,800
2018-04-03$4.14$4.1419,300
2018-04-02$4.18$4.1821,700
2018-03-29$4.27$4.2743,000
2018-03-28$4.25$4.2516,100
2018-03-27$4.24$4.2424,000
2018-03-26$4.25$4.25224,600
2018-03-23$4.26$4.2615,300
2018-03-22$4.24$4.2419,300
2018-03-21$4.29$4.2946,700
2018-03-20$4.25$4.2593,300
2018-03-19$4.27$4.2755,400
2018-03-16$4.48$4.4829,800
2018-03-15$4.48$4.4819,300
2018-03-14$4.47$4.47175,200
2018-03-13$4.54$4.5413,800
2018-03-12$4.53$4.5327,500
2018-03-09$4.59$4.5944,500
2018-03-08$4.61$4.6130,800
2018-03-07$4.70$4.7022,800
2018-03-06$4.68$4.6823,700
2018-03-05$4.75$4.7523,400
2018-03-02$4.57$4.5716,500
2018-03-01$4.57$4.5740,200
2018-02-28$4.60$4.6038,300
2018-02-27$4.52$4.5218,800
2018-02-26$4.52$4.5279,100
2018-02-23$4.54$4.54594,000
2018-02-22$4.36$4.3614,300
2018-02-21$4.44$4.4432,700
2018-02-20$4.52$4.5228,200
2018-02-16$4.40$4.4041,400
2018-02-15$4.60$4.6016,200
2018-02-14$4.64$4.6435,000
2018-02-13$4.58$4.5846,100
2018-02-12$4.56$4.5672,700
2018-02-09$4.61$4.6154,700
2018-02-08$4.73$4.7357,700
2018-02-07$4.97$4.97162,600
2018-02-06$4.60$4.6049,300
2018-02-05$4.50$4.5028,000
2018-02-02$4.80$4.8020,300
2018-02-01$4.96$4.9632,000
2018-01-31$5.05$5.0541,800
2018-01-30$5.21$5.2111,800
2018-01-29$5.33$5.3315,700
2018-01-26$5.39$5.3924,800
2018-01-25$5.38$5.3836,700
2018-01-24$5.35$5.3577,900
2018-01-23$5.40$5.4048,700
2018-01-22$5.12$5.12264,000
2018-01-19$5.03$5.0354,400
2018-01-18$5.00$5.0065,700
2018-01-17$5.03$5.0318,400
2018-01-16$4.95$4.9533,100
2018-01-12$5.05$5.0511,000
2018-01-11$5.05$5.0514,400
2018-01-10$5.00$5.0047,000
2018-01-09$5.11$5.114,800
2018-01-08$5.07$5.0719,100
2018-01-05$5.09$5.0917,700
2018-01-04$5.06$5.0619,400
2018-01-03$4.99$4.9926,700
2018-01-02$4.98$4.9818,500