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 — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$5.19$5.19107,800
1999-12-30$5.22$5.2259,000
1999-12-29$5.22$5.2259,600
1999-12-28$5.06$5.0663,800
1999-12-27$5.06$5.06104,600
1999-12-23$5.09$5.0921,400
1999-12-22$5.09$5.0920,600
1999-12-21$5.06$5.0683,800
1999-12-20$5.06$5.0698,600
1999-12-17$5.19$5.1916,800
1999-12-16$5.13$5.1322,600
1999-12-15$5.25$5.2562,800
1999-12-14$5.25$5.2529,200
1999-12-13$5.16$5.1691,400
1999-12-10$4.97$4.9726,600
1999-12-09$5.00$5.0027,000
1999-12-08$5.06$5.0614,000
1999-12-07$5.28$5.2836,200
1999-12-06$5.28$5.2835,000
1999-12-03$5.22$5.22106,400
1999-12-02$5.19$5.19172,200
1999-12-01$5.19$5.1968,800
1999-11-30$4.88$4.8895,800
1999-11-29$4.94$4.9442,000
1999-11-26$4.88$4.8876,400
1999-11-24$5.06$5.06188,200
1999-11-23$5.16$5.1668,000
1999-11-22$5.19$5.1930,400
1999-11-19$5.09$5.0932,800
1999-11-18$5.00$5.0064,000
1999-11-17$5.00$5.0084,200
1999-11-16$5.09$5.0922,000
1999-11-15$5.16$5.1629,200
1999-11-12$5.13$5.1351,800
1999-11-11$5.22$5.2227,400
1999-11-10$5.31$5.31148,000
1999-11-09$5.50$5.5046,800
1999-11-08$5.59$5.599,000
1999-11-05$5.53$5.5330,600
1999-11-04$5.69$5.698,400
1999-11-03$5.81$5.812,400
1999-11-02$5.84$5.8427,400
1999-11-01$6.06$6.06296,000
1999-10-29$6.13$6.13164,800
1999-10-28$6.28$6.28132,600
1999-10-27$6.31$6.3118,200
1999-10-26$6.31$6.3134,800
1999-10-25$6.34$6.3415,800
1999-10-22$6.28$6.2860,800
1999-10-21$6.25$6.2548,400
1999-10-20$5.94$5.9427,000
1999-10-19$5.81$5.8166,600
1999-10-18$5.72$5.726,800
1999-10-15$5.66$5.662,000
1999-10-14$5.66$5.6628,200
1999-10-13$5.66$5.669,000
1999-10-12$5.63$5.6313,800
1999-10-11$5.66$5.669,400
1999-10-08$5.66$5.665,800
1999-10-07$5.66$5.6617,200
1999-10-06$5.66$5.6653,400
1999-10-05$5.69$5.6911,000
1999-10-04$5.63$5.63600
1999-10-01$5.63$5.6318,200
1999-09-30$5.63$5.6313,600
1999-09-29$5.63$5.6332,800
1999-09-28$5.66$5.6622,400
1999-09-27$5.63$5.6323,400
1999-09-24$5.66$5.669,800
1999-09-23$5.63$5.6385,800
1999-09-22$5.66$5.664,600
1999-09-21$5.63$5.6322,600
1999-09-20$5.66$5.6612,400
1999-09-17$5.69$5.699,000
1999-09-16$5.72$5.7226,800
1999-09-15$5.75$5.7549,600
1999-09-14$5.69$5.695,400
1999-09-13$5.69$5.6913,800
1999-09-10$5.78$5.7829,400
1999-09-09$5.69$5.6910,800
1999-09-08$5.72$5.7210,000
1999-09-07$5.72$5.7225,000
1999-09-03$5.75$5.7520,000
1999-09-02$5.63$5.6322,800
1999-09-01$5.69$5.6912,000
1999-08-31$5.69$5.6916,600
1999-08-30$5.72$5.7298,000
1999-08-27$5.88$5.8824,200
1999-08-26$5.94$5.9424,600
1999-08-25$6.06$6.0627,600
1999-08-24$6.16$6.1610,600
1999-08-23$6.16$6.1619,000
1999-08-20$6.19$6.195,600
1999-08-19$6.16$6.165,800
1999-08-18$6.06$6.0667,400
1999-08-17$6.19$6.195,200
1999-08-16$6.19$6.196,600
1999-08-13$6.28$6.288,200
1999-08-12$6.13$6.1328,400
1999-08-11$6.22$6.2210,200
1999-08-10$6.25$6.2521,000
1999-08-09$6.38$6.3831,800
1999-08-06$6.50$6.5057,000
1999-08-05$6.41$6.4156,600
1999-08-04$6.25$6.25186,800
1999-08-03$6.25$6.2566,000
1999-08-02$6.25$6.2523,400
1999-07-30$6.16$6.162,800
1999-07-29$6.16$6.1613,800
1999-07-28$6.22$6.2228,000
1999-07-27$6.22$6.226,600
1999-07-26$6.28$6.2814,200
1999-07-23$6.31$6.3115,800
1999-07-22$6.47$6.4723,800
1999-07-21$6.44$6.4414,200
1999-07-20$6.31$6.3115,400
1999-07-19$6.19$6.1982,600
1999-07-16$6.19$6.19101,800
1999-07-15$6.63$6.6313,400
1999-07-14$6.72$6.726,800
1999-07-13$6.69$6.695,400
1999-07-12$6.66$6.6671,600
1999-07-09$6.56$6.56138,000
1999-07-08$6.41$6.41130,200
1999-07-07$6.28$6.2820,000
1999-07-06$6.34$6.3428,600
1999-07-02$6.47$6.4747,600
1999-07-01$6.47$6.4735,000
1999-06-30$6.25$6.2574,000
1999-06-29$6.34$6.3461,000
1999-06-28$6.41$6.4121,600
1999-06-25$6.44$6.4410,400
1999-06-24$6.59$6.5930,600
1999-06-23$6.75$6.7515,200
1999-06-22$6.81$6.8151,000
1999-06-21$6.69$6.6921,400
1999-06-18$6.66$6.6638,600
1999-06-17$6.63$6.636,000
1999-06-16$6.59$6.599,200
1999-06-15$6.50$6.5044,000
1999-06-14$6.63$6.6316,800
1999-06-11$6.50$6.5038,800
1999-06-10$6.38$6.3828,400
1999-06-09$6.72$6.7226,000
1999-06-08$6.72$6.7212,200
1999-06-07$6.88$6.885,600
1999-06-04$6.75$6.756,200
1999-06-03$6.66$6.667,200
1999-06-02$6.69$6.6923,600
1999-06-01$6.91$6.9119,000
1999-05-28$6.88$6.881,590,400
1999-05-27$6.81$6.817,000
1999-05-26$6.81$6.8130,000
1999-05-25$6.78$6.787,000
1999-05-24$6.78$6.788,000
1999-05-21$6.81$6.8136,200
1999-05-20$6.84$6.8446,600
1999-05-19$6.66$6.6614,600
1999-05-18$6.56$6.5625,200
1999-05-17$6.66$6.6681,400
1999-05-14$6.59$6.5968,600
1999-05-13$6.69$6.6917,600
1999-05-12$6.63$6.63456,200
1999-05-11$6.75$6.7533,400
1999-05-10$6.75$6.7593,400
1999-05-07$6.69$6.69183,200
1999-05-06$6.78$6.78206,200
1999-05-05$6.59$6.5949,200
1999-05-04$6.81$6.8143,800
1999-05-03$6.72$6.7221,600
1999-04-30$7.00$7.0035,200
1999-04-29$7.44$7.4437,200
1999-04-28$7.34$7.3434,800
1999-04-27$7.38$7.3841,000
1999-04-26$7.31$7.3115,600
1999-04-23$7.31$7.3178,400
1999-04-22$7.16$7.1650,200
1999-04-21$6.91$6.91154,000
1999-04-20$6.59$6.5931,600
1999-04-19$6.72$6.7239,800
1999-04-16$6.63$6.63317,600
1999-04-15$6.59$6.59104,400
1999-04-14$6.44$6.44107,200
1999-04-13$6.31$6.31142,000
1999-04-12$6.28$6.2851,000
1999-04-09$6.53$6.53308,000
1999-04-08$6.06$6.0616,800
1999-04-07$5.97$5.973,800
1999-04-06$6.00$6.0081,800
1999-04-05$6.03$6.03121,800
1999-04-01$6.06$6.0629,400
1999-03-31$6.13$6.1393,200
1999-03-30$6.19$6.1930,200
1999-03-29$6.16$6.16101,200
1999-03-26$6.31$6.31141,000
1999-03-25$6.31$6.3128,400
1999-03-24$6.31$6.3156,400
1999-03-23$6.34$6.34133,600
1999-03-22$6.38$6.3838,200
1999-03-19$6.53$6.5313,600
1999-03-18$6.56$6.5650,600
1999-03-17$6.44$6.4431,600
1999-03-16$6.47$6.4726,600
1999-03-15$6.53$6.5318,200
1999-03-12$6.56$6.5617,400
1999-03-11$6.72$6.724,400
1999-03-10$6.59$6.597,800
1999-03-09$6.63$6.6345,400
1999-03-08$6.63$6.6319,800
1999-03-05$6.66$6.6624,000
1999-03-04$6.56$6.5630,600
1999-03-03$6.78$6.7840,200
1999-03-02$6.69$6.6945,000
1999-03-01$6.59$6.5946,000
1999-02-26$6.72$6.7258,400
1999-02-25$6.66$6.6618,400
1999-02-24$6.66$6.66296,600
1999-02-23$6.63$6.63163,000
1999-02-22$6.63$6.63114,400
1999-02-19$6.63$6.6333,000
1999-02-18$6.66$6.6614,000
1999-02-17$6.63$6.6373,200
1999-02-16$6.72$6.7237,600
1999-02-12$6.97$6.9722,000
1999-02-11$7.06$7.06194,200
1999-02-10$6.69$6.69143,200
1999-02-09$6.63$6.6343,200
1999-02-08$6.78$6.7813,800
1999-02-05$6.75$6.7558,600
1999-02-04$6.66$6.6641,000
1999-02-03$6.69$6.699,200
1999-02-02$6.63$6.6339,400
1999-02-01$6.66$6.6629,600
1999-01-29$6.66$6.66315,400
1999-01-28$6.66$6.6644,400
1999-01-27$6.56$6.5649,800
1999-01-26$6.63$6.6332,400
1999-01-25$6.69$6.6966,600
1999-01-22$6.63$6.6363,200
1999-01-21$6.44$6.44122,000
1999-01-20$6.28$6.2861,000
1999-01-19$6.50$6.50930,800
1999-01-15$6.59$6.5972,800
1999-01-14$6.72$6.7222,200
1999-01-13$6.78$6.7820,600
1999-01-12$6.84$6.84253,600
1999-01-11$7.25$7.2538,800
1999-01-08$7.19$7.1949,200
1999-01-07$7.41$7.4152,200
1999-01-06$7.66$7.6638,800
1999-01-05$7.53$7.53146,400
1999-01-04$7.16$7.1679,400