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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$6.94$6.94149,400
1998-12-30$7.03$7.03142,400
1998-12-29$7.06$7.0659,800
1998-12-28$7.03$7.0338,600
1998-12-24$7.13$7.1314,400
1998-12-23$7.13$7.13290,000
1998-12-22$7.00$7.00190,400
1998-12-21$7.16$7.1660,600
1998-12-18$7.25$7.25272,600
1998-12-17$7.34$7.3449,800
1998-12-16$7.34$7.3493,800
1998-12-15$7.50$7.5038,600
1998-12-14$7.91$7.91133,800
1998-12-11$8.03$8.0333,800
1998-12-10$8.06$8.0667,800
1998-12-09$7.94$7.94105,800
1998-12-08$8.09$8.09124,000
1998-12-07$8.06$8.06136,000
1998-12-04$8.00$8.00192,200
1998-12-03$7.69$7.6926,000
1998-12-02$7.50$7.5036,800
1998-12-01$7.34$7.3448,800
1998-11-30$7.25$7.2550,000
1998-11-27$7.22$7.224,600
1998-11-25$7.19$7.1989,200
1998-11-24$6.94$6.94139,600
1998-11-23$6.94$6.9441,400
1998-11-20$6.69$6.695,000
1998-11-19$6.63$6.63246,200
1998-11-18$6.59$6.5976,200
1998-11-17$6.66$6.6648,200
1998-11-16$6.69$6.69770,400
1998-11-13$6.78$6.7837,800
1998-11-12$6.91$6.9138,600
1998-11-11$6.97$6.9752,000
1998-11-10$6.72$6.7271,800
1998-11-09$7.25$7.2543,200
1998-11-06$7.28$7.2898,200
1998-11-05$7.19$7.1992,200
1998-11-04$7.00$7.00104,200
1998-11-03$6.72$6.72184,200
1998-11-02$6.88$6.8884,400
1998-10-30$7.22$7.22115,800
1998-10-29$7.06$7.0616,000
1998-10-28$7.00$7.0051,000
1998-10-27$7.16$7.1616,400
1998-10-26$7.38$7.3821,200
1998-10-23$7.31$7.31166,600
1998-10-22$7.69$7.6969,000
1998-10-21$7.03$7.0375,400
1998-10-20$7.75$7.7538,000
1998-10-19$7.28$7.2833,200
1998-10-16$7.06$7.0648,200
1998-10-15$7.00$7.00154,400
1998-10-14$6.38$6.3861,000
1998-10-13$5.78$5.78109,200
1998-10-12$5.97$5.9734,000
1998-10-09$6.03$6.0373,000
1998-10-08$6.00$6.00301,800
1998-10-07$6.38$6.3855,000
1998-10-06$6.44$6.4460,800
1998-10-05$6.63$6.6357,000
1998-10-02$6.91$6.9167,200
1998-10-01$6.88$6.88194,800
1998-09-30$6.88$6.8828,400
1998-09-29$7.00$7.00148,000
1998-09-28$7.19$7.1911,200
1998-09-25$7.44$7.4475,000
1998-09-24$7.47$7.4725,400
1998-09-23$7.63$7.6337,600
1998-09-22$7.25$7.2595,000
1998-09-21$7.16$7.1626,200
1998-09-18$7.09$7.09218,000
1998-09-17$6.94$6.94128,400
1998-09-16$6.97$6.97416,400
1998-09-15$6.97$6.97350,200
1998-09-14$7.34$7.3490,600
1998-09-11$7.69$7.6967,000
1998-09-10$7.81$7.81103,600
1998-09-09$8.31$8.3123,000
1998-09-08$8.56$8.56143,800
1998-09-04$8.91$8.91160,600
1998-09-03$8.75$8.75143,200
1998-09-02$8.31$8.3189,600
1998-09-01$7.81$7.8168,400
1998-08-31$7.69$7.6974,000
1998-08-28$8.00$8.0051,000
1998-08-27$8.44$8.44178,600
1998-08-26$8.84$8.84117,400
1998-08-25$8.84$8.84137,000
1998-08-24$8.50$8.50112,600
1998-08-21$9.09$9.0960,400
1998-08-20$9.44$9.4418,400
1998-08-19$9.44$9.44141,400
1998-08-18$9.63$9.63769,400
1998-08-17$9.59$9.59131,800
1998-08-14$9.75$9.75164,600
1998-08-13$9.63$9.6378,000
1998-08-12$9.25$9.25188,600
1998-08-11$9.00$9.00102,200
1998-08-10$9.25$9.2558,800
1998-08-07$9.38$9.3884,800
1998-08-06$9.50$9.50199,800
1998-08-05$9.50$9.5079,800
1998-08-04$9.75$9.75314,600
1998-08-03$10.03$10.03202,600
1998-07-31$10.28$10.28145,600
1998-07-30$9.91$9.9191,600
1998-07-29$9.66$9.661,084,400
1998-07-28$9.34$9.34745,000
1998-07-27$9.00$9.00156,400
1998-07-24$9.19$9.19232,800
1998-07-23$9.75$9.75167,000
1998-07-22$9.75$9.75114,200
1998-07-21$9.88$9.88130,800
1998-07-20$9.78$9.78326,200
1998-07-17$9.84$9.84173,200
1998-07-16$9.72$9.7251,200
1998-07-15$9.75$9.7511,200
1998-07-14$9.66$9.66298,400
1998-07-13$9.66$9.66258,600
1998-07-10$9.56$9.56152,000
1998-07-09$9.50$9.50138,200
1998-07-08$9.38$9.38426,400
1998-07-07$9.88$9.88173,400
1998-07-06$9.81$9.8154,600
1998-07-02$9.91$9.91139,800
1998-07-01$10.00$10.00216,000
1998-06-30$10.00$10.00953,600
1998-06-29$10.09$10.09265,600
1998-06-26$9.75$9.75341,000
1998-06-25$9.72$9.72374,200
1998-06-24$9.34$9.34350,400
1998-06-23$9.19$9.19196,200
1998-06-22$9.19$9.19247,200
1998-06-19$9.09$9.09522,400
1998-06-18$9.47$9.47142,000
1998-06-17$9.50$9.50406,800
1998-06-16$9.50$9.50505,400
1998-06-15$9.72$9.72602,800
1998-06-12$9.81$9.81562,800
1998-06-11$10.25$10.25422,000
1998-06-10$10.81$10.81469,200
1998-06-09$10.59$10.59387,800
1998-06-08$10.25$10.25452,600
1998-06-05$10.13$10.13511,800
1998-06-04$10.00$10.00370,400
1998-06-03$10.13$10.13327,200
1998-06-02$9.88$9.88496,600
1998-06-01$10.31$10.31454,000
1998-05-29$10.91$10.91399,400
1998-05-28$10.88$10.881,562,400
1998-05-27$10.56$10.56797,600
1998-05-26$11.38$11.381,335,200
1998-05-22$12.13$12.131,117,000
1998-05-21$14.00$14.000
1998-05-20$14.00$14.004,800
1998-05-19$14.00$14.00275,400
1998-05-18$15.75$15.756,400
1998-05-15$16.25$16.2545,200
1998-05-14$16.72$16.72779,400
1998-05-13$16.75$16.75329,800