NASDAQ:IOSP | Historical Stock Price | INNOSPEC 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
1998-05-13 to 2026-09-04
Data captured

Stock Price Chart

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

$3.25$7.20$15.96$35.36$78.36$173.651998-05-132026-08-27

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

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Historical Stock Price — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$8.14$8.2969,400
2005-12-29$8.33$8.4942,600
2005-12-28$8.34$8.5057,600
2005-12-27$8.45$8.6129,600
2005-12-23$8.84$9.0128,800
2005-12-22$8.90$9.0732,800
2005-12-21$8.76$8.9381,000
2005-12-20$8.43$8.5948,000
2005-12-19$8.22$8.3779,400
2005-12-16$8.55$8.72140,800
2005-12-15$8.59$8.7522,600
2005-12-14$8.78$8.9535,800
2005-12-13$8.54$8.7037,800
2005-12-12$8.29$8.4529,200
2005-12-09$8.32$8.4817,400
2005-12-08$8.08$8.2452,200
2005-12-07$8.01$8.1634,200
2005-12-06$8.08$8.2428,000
2005-12-05$8.05$8.2121,600
2005-12-02$8.02$8.1746,600
2005-12-01$7.95$8.1091,800
2005-11-30$7.74$7.8930,600
2005-11-29$7.52$7.6629,600
2005-11-28$7.52$7.6649,000
2005-11-25$7.80$7.956,200
2005-11-23$7.84$7.9911,400
2005-11-22$7.89$8.0419,400
2005-11-21$8.09$8.2518,000
2005-11-18$7.82$7.9762,600
2005-11-17$8.11$8.2725,200
2005-11-16$7.80$7.9565,800
2005-11-15$7.97$8.1240,600
2005-11-14$8.50$8.6661,000
2005-11-11$8.65$8.8247,800
2005-11-10$8.29$8.4582,000
2005-11-09$7.84$7.9940,200
2005-11-08$7.61$7.7635,600
2005-11-07$7.50$7.64102,000
2005-11-04$7.45$7.5931,400
2005-11-03$7.42$7.5660,400
2005-11-02$7.45$7.5969,600
2005-11-01$7.41$7.5557,800
2005-10-31$7.50$7.6480,000
2005-10-28$7.50$7.65112,800
2005-10-27$7.37$7.5137,600
2005-10-26$7.48$7.6344,600
2005-10-25$7.54$7.6868,600
2005-10-24$7.52$7.6786,000
2005-10-21$7.33$7.4743,800
2005-10-20$7.30$7.4445,200
2005-10-19$7.53$7.6738,400
2005-10-18$7.40$7.5420,800
2005-10-17$7.59$7.7326,000
2005-10-14$7.68$7.8324,800
2005-10-13$7.47$7.6137,600
2005-10-12$7.51$7.6535,400
2005-10-11$7.31$7.4533,200
2005-10-10$7.58$7.7314,400
2005-10-07$7.68$7.8230,800
2005-10-06$7.75$7.90141,600
2005-10-05$7.37$7.5171,400
2005-10-04$7.96$8.1165,400
2005-10-03$8.20$8.3645,200
2005-09-30$8.34$8.5033,000
2005-09-29$8.17$8.3337,200
2005-09-28$8.11$8.2650,200
2005-09-27$8.46$8.6232,200
2005-09-26$8.38$8.5420,600
2005-09-23$8.39$8.5524,000
2005-09-22$8.21$8.3668,800
2005-09-21$8.35$8.5150,000
2005-09-20$8.12$8.2869,000
2005-09-19$8.31$8.4723,800
2005-09-16$8.56$8.73284,600
2005-09-15$8.52$8.6995,800
2005-09-14$8.49$8.6547,600
2005-09-13$8.48$8.6436,600
2005-09-12$8.55$8.7235,000
2005-09-09$8.62$8.7955,600
2005-09-08$8.51$8.6839,000
2005-09-07$8.54$8.7131,800
2005-09-06$8.57$8.7489,400
2005-09-02$8.48$8.6425,000
2005-09-01$8.53$8.6957,000
2005-08-31$8.59$8.7699,400
2005-08-30$8.25$8.4169,000
2005-08-29$8.36$8.5245,200
2005-08-26$8.16$8.2852,800
2005-08-25$8.20$8.3227,400
2005-08-24$8.18$8.3040,400
2005-08-23$8.18$8.3061,200
2005-08-22$8.17$8.2952,000
2005-08-19$8.33$8.4684,200
2005-08-18$8.14$8.2655,400
2005-08-17$8.11$8.2358,400
2005-08-16$8.11$8.2374,200
2005-08-15$8.40$8.5266,600
2005-08-12$8.10$8.22117,800
2005-08-11$8.10$8.2284,800
2005-08-10$8.27$8.39107,400
2005-08-09$8.38$8.51228,800
2005-08-08$8.26$8.38109,800
2005-08-05$8.06$8.1878,800
2005-08-04$8.08$8.20136,200
2005-08-03$8.51$8.6442,200
2005-08-02$8.52$8.6565,400
2005-08-01$8.75$8.8895,200
2005-07-29$8.59$8.72100,400
2005-07-28$8.63$8.7563,600
2005-07-27$9.02$9.1568,600
2005-07-26$9.02$9.1587,400
2005-07-25$9.05$9.1930,600
2005-07-22$9.20$9.3359,400
2005-07-21$8.96$9.0927,000
2005-07-20$9.22$9.3649,800
2005-07-19$9.20$9.3333,800
2005-07-18$9.23$9.3745,800
2005-07-15$9.11$9.2424,400
2005-07-14$9.18$9.3148,200
2005-07-13$9.35$9.4920,800
2005-07-12$9.44$9.5843,400
2005-07-11$9.43$9.5756,200
2005-07-08$9.23$9.3690,600
2005-07-07$9.03$9.1639,000
2005-07-06$8.95$9.0821,800
2005-07-05$9.03$9.1651,400
2005-07-01$8.95$9.0838,600
2005-06-30$9.00$9.1428,200
2005-06-29$9.07$9.2044,600
2005-06-28$9.28$9.4150,200
2005-06-27$9.01$9.1454,000
2005-06-24$9.06$9.20116,800
2005-06-23$9.17$9.3038,200
2005-06-22$9.41$9.5555,800
2005-06-21$9.48$9.6249,400
2005-06-20$9.47$9.6152,800
2005-06-17$9.46$9.60102,600
2005-06-16$9.43$9.5786,600
2005-06-15$9.40$9.5493,600
2005-06-14$9.20$9.3464,200
2005-06-13$9.24$9.3726,600
2005-06-10$9.17$9.3114,000
2005-06-09$9.07$9.2113,200
2005-06-08$9.10$9.2451,600
2005-06-07$8.96$9.0963,400
2005-06-06$9.15$9.2822,200
2005-06-03$9.01$9.1427,800
2005-06-02$9.22$9.3534,200
2005-06-01$9.30$9.4468,400
2005-05-31$9.03$9.1767,400
2005-05-27$9.03$9.1637,800
2005-05-26$8.88$9.01102,400
2005-05-25$8.52$8.65301,600
2005-05-24$9.89$10.0364,400
2005-05-23$9.70$9.8475,600
2005-05-20$9.63$9.7741,800
2005-05-19$9.68$9.8256,400
2005-05-18$9.63$9.77106,600
2005-05-17$9.63$9.77166,400
2005-05-16$9.73$9.8873,200
2005-05-13$9.41$9.5552,200
2005-05-12$9.50$9.64123,800
2005-05-11$9.64$9.78308,400
2005-05-10$9.39$9.53143,800
2005-05-09$9.79$9.93101,600
2005-05-06$9.51$9.6559,400
2005-05-05$9.40$9.5462,400
2005-05-04$9.41$9.55107,000
2005-05-03$9.15$9.28116,000
2005-05-02$8.66$8.7965,200
2005-04-29$8.60$8.73156,800
2005-04-28$8.87$9.00165,800
2005-04-27$8.12$8.24113,600
2005-04-26$8.53$8.65333,400
2005-04-25$7.72$7.8330,800
2005-04-22$7.86$7.98141,400
2005-04-21$8.20$8.3244,400
2005-04-20$7.80$7.9291,800
2005-04-19$8.14$8.2695,200
2005-04-18$8.37$8.4963,600
2005-04-15$8.23$8.35102,800
2005-04-14$8.58$8.7060,600
2005-04-13$8.58$8.70102,600
2005-04-12$8.60$8.7377,800
2005-04-11$8.58$8.70202,000
2005-04-08$8.61$8.73144,600
2005-04-07$9.09$9.2253,800
2005-04-06$9.10$9.2360,600
2005-04-05$9.45$9.5988,800
2005-04-04$9.06$9.20124,000
2005-04-01$9.37$9.51133,400
2005-03-31$9.27$9.40155,200
2005-03-30$9.05$9.1897,600
2005-03-29$8.95$9.08121,000
2005-03-28$9.40$9.5455,000
2005-03-24$9.20$9.3438,800
2005-03-23$9.18$9.3148,600
2005-03-22$9.18$9.31119,200
2005-03-21$9.25$9.3969,800
2005-03-18$9.30$9.44368,000
2005-03-17$9.48$9.6243,800
2005-03-16$9.20$9.3477,200
2005-03-15$9.35$9.4972,600
2005-03-14$9.29$9.4357,800
2005-03-11$9.37$9.5122,000
2005-03-10$9.45$9.5985,600
2005-03-09$9.58$9.7294,800
2005-03-08$9.72$9.87146,800
2005-03-07$9.80$9.9542,600
2005-03-04$9.98$10.12140,200
2005-03-03$9.61$9.7589,600
2005-03-02$9.58$9.7299,000
2005-03-01$9.73$9.8777,000
2005-02-28$9.74$9.8899,800
2005-02-25$10.00$10.15161,200
2005-02-24$9.36$9.50111,800
2005-02-23$9.27$9.4176,600
2005-02-22$9.00$9.14167,400
2005-02-18$9.51$9.65196,000
2005-02-17$9.24$9.38131,200
2005-02-16$9.07$9.20129,400
2005-02-15$9.15$9.25157,800
2005-02-14$9.31$9.41111,000
2005-02-11$9.55$9.66101,600
2005-02-10$9.56$9.66221,400
2005-02-09$9.89$10.00267,000
2005-02-08$9.80$9.91239,000
2005-02-07$9.98$10.0968,600
2005-02-04$10.00$10.11136,600
2005-02-03$10.09$10.2059,000
2005-02-02$10.05$10.1675,400
2005-02-01$10.21$10.3297,000
2005-01-31$10.24$10.3559,800
2005-01-28$10.08$10.1970,400
2005-01-27$9.97$10.0842,400
2005-01-26$10.04$10.1555,400
2005-01-25$9.82$9.9332,200
2005-01-24$9.85$9.9621,400
2005-01-21$10.00$10.1176,200
2005-01-20$10.00$10.1195,800
2005-01-19$10.07$10.18151,200
2005-01-18$10.00$10.11124,000
2005-01-14$9.82$9.92216,400
2005-01-13$10.01$10.12126,600
2005-01-12$9.95$10.06107,800
2005-01-11$9.86$9.9655,000
2005-01-10$9.90$10.0193,400
2005-01-07$9.93$10.04137,600
2005-01-06$10.25$10.3664,400
2005-01-05$9.90$10.0163,400
2005-01-04$10.04$10.1594,200
2005-01-03$10.30$10.4155,800