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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$23.28$23.80109,000
2006-12-28$23.75$24.2988,000
2006-12-27$23.98$24.52136,600
2006-12-26$23.74$24.28156,400
2006-12-22$23.17$23.6991,200
2006-12-21$23.88$24.41150,200
2006-12-20$23.93$24.47167,000
2006-12-19$23.74$24.28120,400
2006-12-18$23.25$23.77180,600
2006-12-15$24.20$24.75204,200
2006-12-14$23.99$24.53302,000
2006-12-13$23.51$24.04151,400
2006-12-12$23.79$24.32294,800
2006-12-11$23.21$23.73242,600
2006-12-08$23.01$23.53158,000
2006-12-07$22.42$22.93131,200
2006-12-06$22.03$22.52354,200
2006-12-05$21.99$22.49177,600
2006-12-04$21.25$21.73224,400
2006-12-01$20.76$21.23163,000
2006-11-30$21.29$21.77210,000
2006-11-29$21.74$22.23126,000
2006-11-28$20.75$21.2292,200
2006-11-27$21.05$21.52194,400
2006-11-24$20.96$21.4325,600
2006-11-22$20.87$21.3477,600
2006-11-21$20.98$21.45130,200
2006-11-20$20.66$21.13131,800
2006-11-17$20.45$20.91163,400
2006-11-16$20.20$20.65174,000
2006-11-15$20.70$21.16133,600
2006-11-14$20.42$20.88169,800
2006-11-13$19.85$20.30173,200
2006-11-10$19.42$19.86166,800
2006-11-09$18.73$19.15112,800
2006-11-08$19.25$19.69111,800
2006-11-07$18.64$19.06117,000
2006-11-06$18.63$19.05131,600
2006-11-03$18.33$18.75173,200
2006-11-02$18.21$18.62247,800
2006-11-01$17.24$17.63312,800
2006-10-31$16.74$17.12142,000
2006-10-30$16.51$16.8863,600
2006-10-27$16.26$16.6384,000
2006-10-26$16.40$16.77167,600
2006-10-25$15.30$15.6594,000
2006-10-24$15.05$15.39117,600
2006-10-23$15.11$15.45151,400
2006-10-20$14.98$15.31107,600
2006-10-19$14.96$15.30166,200
2006-10-18$15.01$15.3460,400
2006-10-17$14.97$15.31102,400
2006-10-16$15.00$15.3368,000
2006-10-13$14.96$15.2961,400
2006-10-12$14.93$15.2687,200
2006-10-11$14.70$15.0346,400
2006-10-10$14.94$15.2835,800
2006-10-09$14.97$15.3145,600
2006-10-06$15.03$15.3640,200
2006-10-05$15.00$15.34103,800
2006-10-04$14.91$15.25140,400
2006-10-03$14.86$15.19122,400
2006-10-02$14.80$15.1369,600
2006-09-29$14.85$15.18126,000
2006-09-28$14.99$15.3274,000
2006-09-27$15.07$15.41226,200
2006-09-26$14.93$15.27101,600
2006-09-25$14.87$15.20121,400
2006-09-22$14.56$14.8888,800
2006-09-21$14.90$15.2386,000
2006-09-20$14.42$14.74135,200
2006-09-19$14.22$14.54105,800
2006-09-18$14.19$14.50105,600
2006-09-15$14.19$14.51256,400
2006-09-14$14.00$14.32110,600
2006-09-13$13.90$14.2143,000
2006-09-12$13.78$14.0980,000
2006-09-11$13.63$13.9445,600
2006-09-08$13.73$14.0375,400
2006-09-07$13.65$13.9678,200
2006-09-06$13.63$13.9364,400
2006-09-05$13.71$14.01102,000
2006-09-01$13.61$13.9197,400
2006-08-31$13.72$14.02159,600
2006-08-30$13.46$13.7669,200
2006-08-29$13.00$13.2554,400
2006-08-28$12.59$12.8327,200
2006-08-25$12.63$12.8733,200
2006-08-24$12.16$12.4090,800
2006-08-23$12.00$12.23108,600
2006-08-22$12.95$13.2078,400
2006-08-21$13.30$13.5679,800
2006-08-18$13.14$13.4061,800
2006-08-17$13.26$13.5193,000
2006-08-16$13.11$13.3665,400
2006-08-15$12.66$12.9036,800
2006-08-14$12.25$12.4951,200
2006-08-11$12.04$12.2756,200
2006-08-10$12.26$12.5076,600
2006-08-09$11.87$12.10119,000
2006-08-08$11.21$11.4362,600
2006-08-07$12.03$12.2657,400
2006-08-04$12.01$12.24151,000
2006-08-03$13.23$13.4881,000
2006-08-02$12.09$12.32118,000
2006-08-01$12.19$12.4382,000
2006-07-31$12.34$12.5795,600
2006-07-28$12.25$12.4976,600
2006-07-27$12.13$12.3745,800
2006-07-26$12.15$12.3980,200
2006-07-25$12.38$12.6255,600
2006-07-24$12.50$12.7479,800
2006-07-21$12.35$12.5848,400
2006-07-20$12.43$12.6781,600
2006-07-19$12.58$12.82273,600
2006-07-18$12.51$12.75114,400
2006-07-17$12.21$12.4449,000
2006-07-14$12.42$12.6664,200
2006-07-13$12.22$12.4540,200
2006-07-12$12.34$12.5863,000
2006-07-11$12.48$12.72110,800
2006-07-10$12.51$12.7583,800
2006-07-07$12.34$12.58150,600
2006-07-06$12.62$12.8684,000
2006-07-05$12.31$12.5551,400
2006-07-03$12.60$12.8425,800
2006-06-30$12.71$12.96211,200
2006-06-29$12.25$12.48117,000
2006-06-28$11.44$11.6676,400
2006-06-27$11.79$12.0165,800
2006-06-26$12.39$12.6362,400
2006-06-23$11.90$12.1355,200
2006-06-22$11.87$12.1040,400
2006-06-21$12.20$12.4371,200
2006-06-20$12.06$12.2940,600
2006-06-19$11.52$11.7447,600
2006-06-16$11.58$11.80306,000
2006-06-15$12.28$12.5143,800
2006-06-14$11.96$12.1950,400
2006-06-13$11.79$12.0182,600
2006-06-12$12.38$12.6273,000
2006-06-09$12.42$12.6670,600
2006-06-08$11.80$12.0380,800
2006-06-07$11.80$12.0378,200
2006-06-06$12.04$12.2775,400
2006-06-05$11.72$11.9498,200
2006-06-02$13.42$13.68113,400
2006-06-01$12.70$12.9498,200
2006-05-31$12.08$12.3175,400
2006-05-30$11.87$12.1054,800
2006-05-26$12.75$13.0040,200
2006-05-25$12.77$13.0165,400
2006-05-24$12.63$12.8774,200
2006-05-23$12.09$12.3256,000
2006-05-22$12.08$12.3162,400
2006-05-19$12.45$12.6926,800
2006-05-18$12.10$12.3349,600
2006-05-17$12.55$12.7933,800
2006-05-16$12.92$13.1778,200
2006-05-15$12.73$12.9762,000
2006-05-12$13.18$13.43118,400
2006-05-11$13.35$13.6191,000
2006-05-10$13.50$13.7656,200
2006-05-09$13.61$13.8780,200
2006-05-08$13.13$13.3833,200
2006-05-05$13.32$13.5783,200
2006-05-04$13.05$13.3067,000
2006-05-03$12.89$13.1468,000
2006-05-02$12.39$12.63100,400
2006-05-01$12.43$12.6799,800
2006-04-28$12.57$12.8176,400
2006-04-27$12.92$13.1759,800
2006-04-26$13.33$13.5938,000
2006-04-25$13.40$13.6658,600
2006-04-24$13.56$13.8226,600
2006-04-21$13.49$13.7536,400
2006-04-20$13.24$13.5018,800
2006-04-19$13.45$13.7132,200
2006-04-18$13.50$13.7660,200
2006-04-17$12.37$12.6130,200
2006-04-13$12.48$12.7223,000
2006-04-12$12.60$12.8428,000
2006-04-11$12.52$12.7642,600
2006-04-10$12.65$12.8935,400
2006-04-07$12.39$12.6338,000
2006-04-06$13.13$13.3835,600
2006-04-05$13.25$13.5045,800
2006-04-04$13.20$13.4653,800
2006-04-03$12.75$12.9952,400
2006-03-31$12.82$13.0630,400
2006-03-30$12.82$13.0623,600
2006-03-29$12.95$13.2039,000
2006-03-28$12.52$12.7622,200
2006-03-27$12.05$12.2865,000
2006-03-24$12.20$12.4337,600
2006-03-23$12.25$12.4959,600
2006-03-22$13.05$13.30113,400
2006-03-21$12.20$12.44197,400
2006-03-20$12.75$13.00104,000
2006-03-17$12.14$12.38210,000
2006-03-16$12.28$12.52133,600
2006-03-15$12.31$12.5556,600
2006-03-14$11.75$11.9860,600
2006-03-13$11.95$12.18310,200
2006-03-10$11.87$12.1070,600
2006-03-09$11.99$12.2289,800
2006-03-08$11.88$12.1148,600
2006-03-07$11.98$12.21107,800
2006-03-06$12.20$12.4454,600
2006-03-03$12.42$12.6662,000
2006-03-02$12.55$12.79106,800
2006-03-01$13.05$13.3099,600
2006-02-28$11.65$11.8873,800
2006-02-27$11.98$12.21182,400
2006-02-24$11.00$11.21200,600
2006-02-23$10.95$11.1650,400
2006-02-22$10.89$11.10184,600
2006-02-21$10.51$10.7172,400
2006-02-17$10.62$10.83115,000
2006-02-16$9.96$10.1548,000
2006-02-15$9.95$10.1477,600
2006-02-14$10.09$10.2928,400
2006-02-13$10.00$10.1932,400
2006-02-10$9.98$10.1794,600
2006-02-09$10.28$10.47127,400
2006-02-08$9.90$10.091,008,200
2006-02-07$9.97$10.1650,000
2006-02-06$10.04$10.2351,000
2006-02-03$9.80$9.9954,600
2006-02-02$10.29$10.4945,600
2006-02-01$10.20$10.4060,600
2006-01-31$10.13$10.3368,000
2006-01-30$10.77$10.9825,800
2006-01-27$11.25$11.4787,800
2006-01-26$10.62$10.8364,400
2006-01-25$10.25$10.4550,200
2006-01-24$10.00$10.1962,400
2006-01-23$9.58$9.7725,800
2006-01-20$9.35$9.5334,800
2006-01-19$9.55$9.7444,400
2006-01-18$9.22$9.4010,000
2006-01-17$9.14$9.3133,200
2006-01-13$8.92$9.0925,000
2006-01-12$8.83$9.0031,600
2006-01-11$9.14$9.3155,000
2006-01-10$9.30$9.4822,200
2006-01-09$9.01$9.1834,600
2006-01-06$9.01$9.1839,000
2006-01-05$8.79$8.96141,600
2006-01-04$8.65$8.8245,000
2006-01-03$8.38$8.5459,400