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 — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$9.00$9.0011,000
2001-12-28$9.20$9.205,200
2001-12-27$9.20$9.203,200
2001-12-26$9.18$9.185,200
2001-12-24$9.13$9.135,200
2001-12-21$9.20$9.2047,000
2001-12-20$9.15$9.157,400
2001-12-19$9.43$9.4312,400
2001-12-18$9.45$9.459,800
2001-12-17$9.45$9.4528,200
2001-12-14$9.15$9.156,000
2001-12-13$9.05$9.052,600
2001-12-12$9.18$9.1813,600
2001-12-11$8.97$8.9725,600
2001-12-10$8.73$8.7315,400
2001-12-07$8.87$8.8736,200
2001-12-06$8.50$8.5031,000
2001-12-05$8.10$8.1029,800
2001-12-04$8.00$8.009,400
2001-12-03$7.95$7.9540,800
2001-11-30$8.13$8.1327,800
2001-11-29$8.50$8.5029,600
2001-11-28$8.46$8.4639,000
2001-11-27$8.98$8.9811,600
2001-11-26$9.25$9.255,600
2001-11-23$9.10$9.103,400
2001-11-21$9.00$9.00400
2001-11-20$8.94$8.934,400
2001-11-19$9.00$9.0030,000
2001-11-16$9.21$9.2139,200
2001-11-15$9.38$9.3890,400
2001-11-14$9.44$9.446,800
2001-11-13$9.36$9.3612,400
2001-11-12$9.50$9.5017,800
2001-11-09$9.45$9.456,000
2001-11-08$9.36$9.3613,800
2001-11-07$9.44$9.442,400
2001-11-06$9.57$9.5717,200
2001-11-05$9.50$9.509,800
2001-11-02$9.48$9.48108,400
2001-11-01$9.50$9.5020,800
2001-10-31$9.59$9.5942,000
2001-10-30$9.50$9.5016,000
2001-10-29$9.45$9.4519,000
2001-10-26$9.48$9.4813,000
2001-10-25$9.51$9.5116,000
2001-10-24$9.49$9.494,200
2001-10-23$9.45$9.4519,800
2001-10-22$9.53$9.5312,800
2001-10-19$9.55$9.5519,000
2001-10-18$9.43$9.4332,400
2001-10-17$9.43$9.4314,800
2001-10-16$9.40$9.4032,800
2001-10-15$9.43$9.4327,200
2001-10-12$9.32$9.3221,800
2001-10-11$9.32$9.3222,200
2001-10-10$9.18$9.1895,000
2001-10-09$9.12$9.1270,800
2001-10-08$9.05$9.0524,800
2001-10-05$9.28$9.2824,800
2001-10-04$9.54$9.54100,200
2001-10-03$9.55$9.5558,800
2001-10-02$9.30$9.3043,800
2001-10-01$9.13$9.139,800
2001-09-28$9.13$9.1352,600
2001-09-27$8.90$8.9050,800
2001-09-26$9.00$9.0040,600
2001-09-25$9.03$9.0339,800
2001-09-24$9.00$9.0011,600
2001-09-21$9.09$9.0959,600
2001-09-20$9.08$9.0829,200
2001-09-19$9.28$9.2820,800
2001-09-18$9.09$9.0910,200
2001-09-17$9.20$9.2023,200
2001-09-10$9.32$9.3241,000
2001-09-07$9.13$9.1323,800
2001-09-06$9.29$9.2948,800
2001-09-05$9.19$9.195,200
2001-09-04$9.24$9.2441,200
2001-08-31$9.35$9.3523,200
2001-08-30$9.27$9.2740,200
2001-08-29$9.24$9.2430,200
2001-08-28$9.25$9.2552,600
2001-08-27$9.18$9.1826,200
2001-08-24$9.25$9.2549,600
2001-08-23$9.15$9.1526,200
2001-08-22$9.14$9.1424,200
2001-08-21$9.20$9.2044,000
2001-08-20$9.20$9.2059,000
2001-08-17$9.13$9.1321,800
2001-08-16$9.18$9.1844,600
2001-08-15$9.20$9.2046,200
2001-08-14$9.24$9.2478,600
2001-08-13$9.18$9.1835,600
2001-08-10$8.98$8.9893,800
2001-08-09$8.85$8.854,400
2001-08-08$8.84$8.847,600
2001-08-07$8.91$8.9035,600
2001-08-06$8.95$8.9550,000
2001-08-03$8.93$8.9316,800
2001-08-02$8.83$8.8321,400
2001-08-01$8.95$8.9541,800
2001-07-31$8.90$8.9042,000
2001-07-30$8.90$8.9044,200
2001-07-27$8.78$8.7837,000
2001-07-26$8.73$8.7338,800
2001-07-25$8.85$8.8531,600
2001-07-24$8.68$8.6828,400
2001-07-23$8.68$8.6831,400
2001-07-20$8.64$8.6450,800
2001-07-19$8.44$8.4424,800
2001-07-18$8.45$8.4540,600
2001-07-17$8.55$8.5525,600
2001-07-16$8.38$8.3854,600
2001-07-13$8.60$8.6046,800
2001-07-12$8.30$8.3077,000
2001-07-11$8.23$8.2332,000
2001-07-10$8.35$8.3555,800
2001-07-09$8.36$8.36234,400
2001-07-06$8.37$8.3742,400
2001-07-05$8.43$8.4340,800
2001-07-03$8.38$8.3818,200
2001-07-02$8.36$8.3691,800
2001-06-29$8.13$8.13842,800
2001-06-28$8.74$8.7439,600
2001-06-27$8.82$8.8234,000
2001-06-26$8.92$8.9246,200
2001-06-25$8.94$8.9459,200
2001-06-22$8.75$8.7518,000
2001-06-21$8.74$8.746,000
2001-06-20$8.75$8.7554,800
2001-06-19$8.75$8.7512,000
2001-06-18$8.75$8.7516,000
2001-06-15$8.95$8.9517,200
2001-06-14$8.73$8.738,800
2001-06-13$8.75$8.7545,000
2001-06-12$8.88$8.8832,600
2001-06-11$8.85$8.8596,400
2001-06-08$8.51$8.518,400
2001-06-07$8.55$8.5522,000
2001-06-06$8.33$8.3351,200
2001-06-05$8.57$8.5744,400
2001-06-04$8.68$8.6888,200
2001-06-01$9.05$9.0595,800
2001-05-31$9.07$9.0746,400
2001-05-30$8.95$8.95215,400
2001-05-29$8.50$8.50162,400
2001-05-25$8.23$8.2339,000
2001-05-24$8.26$8.2619,800
2001-05-23$7.93$7.9316,000
2001-05-22$7.69$7.6920,600
2001-05-21$7.65$7.6511,000
2001-05-18$7.57$7.5735,000
2001-05-17$7.51$7.5113,800
2001-05-16$7.53$7.5318,600
2001-05-15$7.63$7.6334,200
2001-05-14$7.43$7.4337,800
2001-05-11$6.78$6.7811,000
2001-05-10$6.63$6.6314,400
2001-05-09$6.48$6.4828,000
2001-05-08$6.21$6.216,400
2001-05-07$6.15$6.155,200
2001-05-04$6.15$6.1511,400
2001-05-03$6.13$6.134,800
2001-05-02$6.15$6.159,800
2001-05-01$6.13$6.1356,600
2001-04-30$6.05$6.055,200
2001-04-27$6.01$6.0112,600
2001-04-26$6.09$6.095,800
2001-04-25$6.03$6.032,800
2001-04-24$6.04$6.044,200
2001-04-23$6.04$6.043,400
2001-04-20$6.13$6.138,800
2001-04-19$6.05$6.053,800
2001-04-18$6.01$6.0113,000
2001-04-17$6.15$6.1514,000
2001-04-16$6.00$6.008,800
2001-04-12$6.03$6.0311,600
2001-04-11$6.10$6.106,000
2001-04-10$6.08$6.0815,400
2001-04-09$5.90$5.9040,600
2001-04-06$5.70$5.7016,000
2001-04-05$5.70$5.7020,800
2001-04-04$5.85$5.853,000
2001-04-03$5.88$5.8825,800
2001-04-02$5.85$5.852,400
2001-03-30$5.80$5.803,000
2001-03-29$5.80$5.804,000
2001-03-28$5.93$5.93800
2001-03-27$5.95$5.9512,400
2001-03-26$5.95$5.958,400
2001-03-23$5.80$5.808,600
2001-03-22$5.87$5.875,000
2001-03-21$5.85$5.852,800
2001-03-20$5.90$5.891,400
2001-03-19$5.88$5.882,000
2001-03-16$5.80$5.8018,000
2001-03-15$6.00$6.0040,400
2001-03-14$6.25$6.259,800
2001-03-13$6.40$6.4012,000
2001-03-12$6.41$6.4123,800
2001-03-09$6.50$6.5018,600
2001-03-08$6.55$6.551,000
2001-03-07$6.51$6.511,200
2001-03-06$6.55$6.554,800
2001-03-05$6.53$6.5318,600
2001-03-02$6.53$6.531,000
2001-03-01$6.53$6.5311,000
2001-02-28$6.59$6.5916,000
2001-02-27$6.55$6.553,600
2001-02-26$6.58$6.5812,000
2001-02-23$6.58$6.5812,400
2001-02-22$6.58$6.585,000
2001-02-21$6.60$6.60800
2001-02-20$6.65$6.6520,400
2001-02-16$6.56$6.562,800
2001-02-15$6.55$6.557,600
2001-02-14$6.60$6.6023,800
2001-02-13$6.75$6.7530,000
2001-02-12$6.50$6.5011,800
2001-02-09$6.68$6.6829,600
2001-02-08$6.75$6.75600
2001-02-07$6.75$6.754,000
2001-02-06$6.50$6.503,400
2001-02-05$6.60$6.603,000
2001-02-02$6.50$6.5041,400
2001-02-01$6.50$6.5079,200
2001-01-31$6.53$6.5314,800
2001-01-30$6.55$6.5513,200
2001-01-29$6.75$6.759,000
2001-01-26$6.88$6.8810,800
2001-01-25$7.09$7.0911,000
2001-01-24$7.00$7.0037,000
2001-01-23$7.06$7.0627,400
2001-01-22$6.94$6.946,800
2001-01-19$6.88$6.8827,800
2001-01-18$6.44$6.448,000
2001-01-17$6.50$6.504,200
2001-01-16$6.50$6.5025,800
2001-01-12$6.38$6.3810,800
2001-01-11$6.38$6.3836,600
2001-01-10$6.44$6.447,600
2001-01-09$6.34$6.344,400
2001-01-08$6.31$6.312,600
2001-01-05$6.25$6.2514,800
2001-01-04$6.31$6.3120,000
2001-01-03$6.16$6.1618,600
2001-01-02$6.00$6.008,800