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 — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$10.41$10.5266,000
2004-12-30$10.50$10.6137,000
2004-12-29$10.67$10.7881,000
2004-12-28$10.86$10.9840,000
2004-12-27$10.53$10.6539,600
2004-12-23$10.47$10.5816,600
2004-12-22$10.35$10.47104,600
2004-12-21$10.28$10.39169,400
2004-12-20$9.98$10.09435,400
2004-12-17$9.98$10.0971,800
2004-12-16$10.33$10.44120,200
2004-12-15$10.52$10.64174,800
2004-12-14$9.72$9.82198,200
2004-12-13$9.92$10.03105,600
2004-12-10$10.05$10.1694,200
2004-12-09$9.62$9.73136,000
2004-12-08$10.08$10.1952,400
2004-12-07$9.78$9.88262,600
2004-12-06$10.29$10.40170,200
2004-12-03$11.05$11.1763,600
2004-12-02$11.20$11.32124,600
2004-12-01$11.91$12.04142,600
2004-11-30$11.03$11.15103,400
2004-11-29$11.34$11.46122,800
2004-11-26$10.61$10.7221,000
2004-11-24$10.38$10.5091,000
2004-11-23$10.20$10.3186,200
2004-11-22$9.89$10.00210,200
2004-11-19$9.95$10.06277,800
2004-11-18$9.83$9.9391,600
2004-11-17$9.97$10.08423,600
2004-11-16$9.81$9.91119,800
2004-11-15$10.00$10.11413,800
2004-11-12$10.04$10.1527,200
2004-11-11$10.08$10.1948,000
2004-11-10$10.03$10.14156,800
2004-11-09$10.09$10.2079,400
2004-11-08$9.79$9.89194,400
2004-11-05$9.73$9.83196,800
2004-11-04$9.88$9.99268,000
2004-11-03$9.93$10.04185,000
2004-11-02$9.70$9.81200,600
2004-11-01$9.55$9.66221,800
2004-10-29$9.65$9.76103,200
2004-10-28$9.65$9.7691,800
2004-10-27$9.75$9.86262,400
2004-10-26$9.50$9.61313,400
2004-10-25$9.35$9.45101,000
2004-10-22$9.80$9.9153,200
2004-10-21$9.90$10.0171,600
2004-10-20$9.95$10.0668,000
2004-10-19$10.03$10.1447,800
2004-10-18$10.15$10.2633,200
2004-10-15$10.33$10.4571,800
2004-10-14$10.10$10.2158,600
2004-10-13$10.30$10.4192,600
2004-10-12$10.33$10.44115,200
2004-10-11$10.15$10.26139,000
2004-10-08$10.62$10.74110,200
2004-10-07$10.93$11.0556,200
2004-10-06$11.35$11.4877,600
2004-10-05$11.37$11.4985,400
2004-10-04$11.31$11.4368,400
2004-10-01$11.22$11.3593,800
2004-09-30$10.62$10.74117,600
2004-09-29$11.11$11.2360,400
2004-09-28$11.06$11.1856,600
2004-09-27$11.16$11.2863,800
2004-09-24$11.33$11.4635,200
2004-09-23$11.21$11.3449,800
2004-09-22$11.05$11.17100,200
2004-09-21$11.58$11.7051,600
2004-09-20$11.37$11.5034,800
2004-09-17$11.15$11.27110,200
2004-09-16$11.58$11.7148,000
2004-09-15$11.57$11.6947,600
2004-09-14$11.75$11.8822,200
2004-09-13$11.82$11.9561,800
2004-09-10$12.18$12.3219,600
2004-09-09$11.99$12.1250,200
2004-09-08$11.91$12.0447,600
2004-09-07$11.85$11.9884,800
2004-09-03$11.65$11.7848,800
2004-09-02$11.30$11.4252,600
2004-09-01$11.23$11.3553,000
2004-08-31$11.08$11.2032,800
2004-08-30$11.05$11.1732,000
2004-08-27$11.08$11.2019,600
2004-08-26$11.14$11.2629,800
2004-08-25$11.13$11.2512,200
2004-08-24$11.38$11.5122,200
2004-08-23$11.28$11.4021,600
2004-08-20$11.28$11.41127,800
2004-08-19$11.57$11.7069,600
2004-08-18$11.73$11.8674,800
2004-08-17$11.66$11.7656,200
2004-08-16$11.69$11.7847,800
2004-08-13$11.23$11.3232,000
2004-08-12$11.40$11.5057,000
2004-08-11$11.39$11.4857,400
2004-08-10$11.52$11.6244,600
2004-08-09$11.20$11.3065,000
2004-08-06$11.41$11.5044,800
2004-08-05$11.86$11.9674,200
2004-08-04$12.28$12.3857,600
2004-08-03$12.42$12.5289,000
2004-08-02$12.88$12.9956,000
2004-07-30$12.91$13.0228,000
2004-07-29$12.89$13.0063,400
2004-07-28$12.94$13.05102,200
2004-07-27$12.57$12.68124,600
2004-07-26$11.47$11.5636,600
2004-07-23$11.80$11.9015,800
2004-07-22$11.95$12.0546,200
2004-07-21$12.34$12.4538,800
2004-07-20$12.70$12.8016,800
2004-07-19$12.60$12.7122,800
2004-07-16$12.71$12.8153,600
2004-07-15$12.87$12.9820,000
2004-07-14$12.63$12.7422,000
2004-07-13$12.58$12.6881,400
2004-07-12$12.44$12.5543,600
2004-07-09$12.48$12.5938,600
2004-07-08$12.50$12.6192,800
2004-07-07$12.88$12.9951,800
2004-07-06$12.72$12.8245,400
2004-07-02$13.34$13.4531,000
2004-07-01$13.20$13.3138,400
2004-06-30$13.17$13.2848,000
2004-06-29$12.65$12.75161,400
2004-06-28$12.90$13.0184,000
2004-06-25$13.50$13.6294,800
2004-06-24$13.94$14.06106,800
2004-06-23$13.75$13.87151,600
2004-06-22$12.90$13.01100,400
2004-06-21$12.41$12.5244,000
2004-06-18$12.24$12.3461,800
2004-06-17$12.10$12.2035,800
2004-06-16$12.21$12.3162,000
2004-06-15$11.78$11.8878,800
2004-06-14$11.23$11.3369,200
2004-06-10$11.19$11.2870,000
2004-06-09$11.13$11.2253,400
2004-06-08$11.13$11.2247,600
2004-06-07$11.10$11.1949,200
2004-06-04$11.05$11.1474,800
2004-06-03$10.65$10.7452,600
2004-06-02$11.08$11.1722,400
2004-06-01$11.05$11.1474,200
2004-05-28$10.90$10.9948,800
2004-05-27$11.06$11.15102,000
2004-05-26$10.95$11.0487,600
2004-05-25$10.73$10.82106,200
2004-05-24$10.45$10.5480,400
2004-05-21$10.60$10.6954,400
2004-05-20$10.32$10.41191,600
2004-05-19$10.75$10.84111,600
2004-05-18$11.13$11.22110,600
2004-05-17$10.55$10.64162,400
2004-05-14$11.04$11.13126,200
2004-05-13$11.10$11.1975,200
2004-05-12$11.33$11.4294,000
2004-05-11$11.50$11.6080,000
2004-05-10$11.03$11.12178,200
2004-05-07$11.67$11.76150,200
2004-05-06$11.90$12.00130,600
2004-05-05$11.93$12.03100,800
2004-05-04$12.13$12.23186,000
2004-05-03$12.31$12.41161,000
2004-04-30$11.65$11.75113,800
2004-04-29$11.55$11.65155,600
2004-04-28$11.93$12.03270,400
2004-04-27$13.15$13.26316,600
2004-04-26$14.99$15.1283,600
2004-04-23$15.52$15.6556,600
2004-04-22$15.56$15.6974,400
2004-04-21$15.51$15.6466,600
2004-04-20$15.55$15.6874,800
2004-04-19$15.78$15.9167,000
2004-04-16$15.88$16.0181,400
2004-04-15$15.55$15.6872,800
2004-04-14$15.53$15.6690,200
2004-04-13$15.38$15.51117,800
2004-04-12$15.52$15.6572,600
2004-04-08$15.41$15.5492,200
2004-04-07$15.39$15.52122,600
2004-04-06$15.08$15.2081,200
2004-04-05$15.06$15.19124,600
2004-04-02$15.03$15.15131,200
2004-04-01$14.93$15.06109,600
2004-03-31$14.93$15.05107,000
2004-03-30$14.98$15.11148,000
2004-03-29$14.99$15.12177,400
2004-03-26$14.66$14.7999,200
2004-03-25$14.40$14.52109,800
2004-03-24$14.38$14.5096,200
2004-03-23$14.37$14.4991,800
2004-03-22$14.36$14.4890,400
2004-03-19$14.21$14.3378,000
2004-03-18$14.25$14.3795,200
2004-03-17$14.01$14.1264,000
2004-03-16$13.48$13.60150,600
2004-03-15$13.42$13.53169,800
2004-03-12$13.50$13.6294,400
2004-03-11$13.85$13.97121,000
2004-03-10$14.13$14.2597,200
2004-03-09$14.45$14.57137,200
2004-03-08$14.52$14.64183,200
2004-03-05$14.45$14.57313,400
2004-03-04$14.36$14.48173,200
2004-03-03$14.20$14.32155,000
2004-03-02$14.10$14.22130,600
2004-03-01$13.85$13.97123,200
2004-02-27$13.70$13.8178,800
2004-02-26$13.78$13.8963,000
2004-02-25$13.65$13.7770,000
2004-02-24$13.48$13.6096,600
2004-02-23$13.33$13.4461,800
2004-02-20$13.39$13.5075,600
2004-02-19$13.16$13.27130,800
2004-02-18$13.09$13.2098,400
2004-02-17$12.75$12.8263,200
2004-02-13$12.50$12.5891,800
2004-02-12$12.36$12.4365,600
2004-02-11$12.38$12.4543,800
2004-02-10$12.03$12.1061,800
2004-02-09$11.65$11.7272,000
2004-02-06$11.60$11.6740,200
2004-02-05$11.50$11.5747,800
2004-02-04$11.50$11.5783,200
2004-02-03$11.61$11.6829,000
2004-02-02$11.84$11.9129,000
2004-01-30$11.86$11.9330,600
2004-01-29$12.08$12.1538,800
2004-01-28$11.93$12.0047,000
2004-01-27$11.97$12.0441,400
2004-01-26$12.12$12.1955,600
2004-01-23$12.10$12.1749,000
2004-01-22$12.24$12.3167,600
2004-01-21$12.48$12.5532,600
2004-01-20$12.35$12.4337,400
2004-01-16$12.27$12.3464,600
2004-01-15$12.10$12.1741,800
2004-01-14$12.08$12.1582,000
2004-01-13$11.69$11.7668,200
2004-01-12$11.30$11.3623,600
2004-01-09$10.99$11.0534,600
2004-01-08$11.08$11.1474,400
2004-01-07$11.06$11.1287,800
2004-01-06$11.10$11.1657,600
2004-01-05$10.80$10.8756,200
2004-01-02$10.38$10.4440,400