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 — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$110.06$142.64128,400
2024-12-30$109.97$142.53227,000
2024-12-27$110.66$143.4286,800
2024-12-26$111.59$144.63111,300
2024-12-24$111.32$144.2850,400
2024-12-23$109.33$141.70118,800
2024-12-20$109.71$142.19819,800
2024-12-19$109.17$141.49176,800
2024-12-18$109.38$141.76125,500
2024-12-17$113.62$147.26114,600
2024-12-16$115.97$150.30120,400
2024-12-13$115.86$150.1683,500
2024-12-12$115.74$150.0070,000
2024-12-11$116.72$151.2786,000
2024-12-10$116.31$150.7494,200
2024-12-09$116.56$151.07102,100
2024-12-06$116.16$150.5570,200
2024-12-05$117.14$151.8276,200
2024-12-04$118.97$154.1996,700
2024-12-03$119.45$154.8188,800
2024-12-02$120.40$156.04106,000
2024-11-29$118.61$153.7258,300
2024-11-27$117.66$152.4992,800
2024-11-26$117.65$152.48219,000
2024-11-25$119.95$155.46178,800
2024-11-22$119.75$155.20110,800
2024-11-21$118.34$153.37119,200
2024-11-20$118.25$153.2657,400
2024-11-19$116.69$151.23120,100
2024-11-18$116.68$151.22115,400
2024-11-15$119.03$153.2491,500
2024-11-14$121.85$156.87127,500
2024-11-13$121.78$156.78167,500
2024-11-12$121.93$156.98110,400
2024-11-11$124.38$160.13241,400
2024-11-08$121.65$156.62231,900
2024-11-07$120.00$154.49200,900
2024-11-06$124.90$160.80329,900
2024-11-05$111.13$143.0787,900
2024-11-04$108.91$140.2174,500
2024-11-01$108.39$139.5562,300
2024-10-31$107.78$138.7662,900
2024-10-30$109.80$141.3662,900
2024-10-29$109.28$140.6965,000
2024-10-28$110.02$141.6458,400
2024-10-25$109.19$140.5847,900
2024-10-24$109.28$140.6964,700
2024-10-23$108.58$139.7992,000
2024-10-22$109.58$141.0865,500
2024-10-21$111.27$143.2564,300
2024-10-18$113.31$145.8880,800
2024-10-17$115.74$149.0150,100
2024-10-16$116.08$149.4583,900
2024-10-15$114.27$147.1279,200
2024-10-14$114.22$147.0565,700
2024-10-11$113.72$146.4185,400
2024-10-10$111.71$143.82102,700
2024-10-09$111.56$143.63131,700
2024-10-08$110.89$142.7670,800
2024-10-07$111.10$143.0359,800
2024-10-04$112.28$144.5554,400
2024-10-03$110.06$141.7067,200
2024-10-02$111.45$143.4864,300
2024-10-01$112.21$144.4673,100
2024-09-30$113.09$145.6072,200
2024-09-27$114.09$146.8899,200
2024-09-26$113.81$146.52114,100
2024-09-25$111.20$143.16102,600
2024-09-24$112.63$145.00139,000
2024-09-23$111.83$143.9760,200
2024-09-20$111.94$144.12358,200
2024-09-19$113.96$146.7285,300
2024-09-18$111.74$143.86130,600
2024-09-17$112.03$144.23117,500
2024-09-16$109.91$141.5082,200
2024-09-13$108.96$140.2899,800
2024-09-12$106.55$137.1867,800
2024-09-11$106.48$137.0971,700
2024-09-10$106.03$136.5184,100
2024-09-09$106.33$136.89134,300
2024-09-06$106.59$137.2375,800
2024-09-05$108.32$139.4687,600
2024-09-04$109.50$140.97101,000
2024-09-03$111.80$143.94138,300
2024-08-30$115.26$148.39159,200
2024-08-29$113.93$146.6898,100
2024-08-28$112.87$145.31678,800
2024-08-27$113.89$146.63209,100
2024-08-26$113.94$146.69118,200
2024-08-23$113.69$146.37150,300
2024-08-22$111.46$143.50131,400
2024-08-21$111.68$143.78122,100
2024-08-20$109.24$140.64109,600
2024-08-19$110.54$142.3182,000
2024-08-16$108.79$140.0671,400
2024-08-15$109.28$140.69129,900
2024-08-14$107.37$138.23183,400
2024-08-13$105.72$136.11153,900
2024-08-12$104.80$134.92150,800
2024-08-09$106.41$137.00205,000
2024-08-08$109.43$140.88177,800
2024-08-07$106.11$136.61227,000
2024-08-06$118.26$152.25198,100
2024-08-05$115.93$149.25151,000
2024-08-02$121.44$156.3592,300
2024-08-01$125.45$161.51114,800
2024-07-31$131.14$168.83148,200
2024-07-30$131.24$168.9690,700
2024-07-29$129.40$166.5955,300
2024-07-26$130.22$167.6588,100
2024-07-25$128.10$164.92196,300
2024-07-24$128.08$164.90158,900
2024-07-23$131.40$169.1791,900
2024-07-22$128.40$165.3179,700
2024-07-19$126.38$162.7183,100
2024-07-18$128.82$165.8586,800
2024-07-17$129.63$166.89120,500
2024-07-16$130.25$167.69227,200
2024-07-15$125.51$161.59153,600
2024-07-12$124.71$160.56117,100
2024-07-11$124.09$159.76116,100
2024-07-10$120.58$155.2484,000
2024-07-09$120.00$154.49100,700
2024-07-08$122.63$157.88147,200
2024-07-05$120.89$155.6495,600
2024-07-03$122.68$157.9433,000
2024-07-02$122.42$157.61121,800
2024-07-01$121.43$156.3387,000
2024-06-28$123.59$159.11256,300
2024-06-27$122.89$158.2183,500
2024-06-26$123.51$159.0188,800
2024-06-25$123.70$159.2696,300
2024-06-24$124.36$160.1175,400
2024-06-21$123.24$158.66346,100
2024-06-20$121.98$157.04105,400
2024-06-18$123.26$158.69108,700
2024-06-17$123.76$159.3373,400
2024-06-14$122.91$158.2497,800
2024-06-13$125.53$161.6189,700
2024-06-12$127.40$164.02100,100
2024-06-11$124.90$160.80240,500
2024-06-10$124.51$160.30302,100
2024-06-07$126.25$162.5477,300
2024-06-06$129.23$166.3863,600
2024-06-05$130.98$168.6381,400
2024-06-04$128.41$165.3287,400
2024-06-03$128.53$165.4785,300
2024-05-31$130.80$168.40216,700
2024-05-30$126.87$163.34220,700
2024-05-29$125.80$161.96104,900
2024-05-28$128.46$165.3871,000
2024-05-24$129.49$166.7189,200
2024-05-23$127.79$164.52150,800
2024-05-22$130.12$167.52121,800
2024-05-21$130.34$167.80152,200
2024-05-20$129.07$166.1786,500
2024-05-17$129.50$166.7277,000
2024-05-16$130.33$166.8185,500
2024-05-15$131.58$168.41143,100
2024-05-14$131.40$168.18164,600
2024-05-13$128.95$165.0591,700
2024-05-10$131.22$167.95189,000
2024-05-09$126.30$161.66140,400
2024-05-08$125.09$160.11106,500
2024-05-07$124.96$159.9473,700
2024-05-06$124.40$159.2259,400
2024-05-03$121.71$155.7877,200
2024-05-02$121.70$155.7786,300
2024-05-01$120.44$154.15122,000
2024-04-30$120.00$153.59103,500
2024-04-29$121.19$155.1160,200
2024-04-26$121.12$155.0364,800
2024-04-25$120.10$153.7295,700
2024-04-24$122.04$156.2074,300
2024-04-23$122.95$157.3758,200
2024-04-22$121.66$155.7288,900
2024-04-19$122.28$156.5167,100
2024-04-18$120.82$154.6469,200
2024-04-17$120.52$154.2676,600
2024-04-16$120.97$154.8350,100
2024-04-15$121.79$155.8856,300
2024-04-12$122.66$157.0075,300
2024-04-11$124.00$158.7180,200
2024-04-10$122.18$156.3880,900
2024-04-09$125.60$160.7640,100
2024-04-08$124.35$159.1655,100
2024-04-05$124.77$159.7071,900
2024-04-04$123.77$158.4270,900
2024-04-03$125.75$160.9591,300
2024-04-02$125.52$160.6691,400
2024-04-01$126.35$161.7271,700
2024-03-28$128.94$165.0373,300
2024-03-27$129.55$165.8281,300
2024-03-26$128.86$164.9397,000
2024-03-25$127.53$163.2387,300
2024-03-22$127.11$162.6973,700
2024-03-21$127.62$163.3487,900
2024-03-20$125.73$160.9363,000
2024-03-19$123.55$158.14134,000
2024-03-18$121.50$155.51146,900
2024-03-15$122.07$156.24368,900
2024-03-14$122.67$157.01108,900
2024-03-13$124.33$159.1360,200
2024-03-12$124.75$159.6763,300
2024-03-11$125.81$161.0368,900
2024-03-08$125.97$161.2358,100
2024-03-07$125.97$161.2389,000
2024-03-06$123.80$158.4655,800
2024-03-05$122.98$157.4164,800
2024-03-04$124.90$159.8672,100
2024-03-01$125.37$160.46131,100
2024-02-29$124.27$159.0665,900
2024-02-28$123.10$157.5669,600
2024-02-27$124.43$159.2683,900
2024-02-26$125.13$160.1698,800
2024-02-23$124.74$159.6699,200
2024-02-22$123.96$158.66116,000
2024-02-21$123.50$158.0755,600
2024-02-20$123.36$157.8979,600
2024-02-16$124.44$159.2787,700
2024-02-15$125.66$160.84100,600
2024-02-14$120.25$153.91145,200
2024-02-13$117.06$149.83137,300
2024-02-12$120.84$154.6797,600
2024-02-09$118.90$152.1890,600
2024-02-08$118.09$151.1569,700
2024-02-07$116.41$149.0082,800
2024-02-06$115.86$148.2972,800
2024-02-05$114.80$146.94124,600
2024-02-02$116.35$148.9256,500
2024-02-01$117.75$150.7170,400
2024-01-31$116.11$148.61106,800
2024-01-30$119.30$152.7052,600
2024-01-29$119.06$152.3998,900
2024-01-26$118.49$151.6663,900
2024-01-25$118.45$151.6194,700
2024-01-24$117.69$150.6470,300
2024-01-23$119.36$152.7768,800
2024-01-22$120.05$153.6671,900
2024-01-19$117.63$150.5681,100
2024-01-18$117.23$150.0595,500
2024-01-17$115.36$147.6567,200
2024-01-16$115.99$148.4689,300
2024-01-12$117.23$150.0585,200
2024-01-11$115.51$147.8481,900
2024-01-10$116.07$148.5684,600
2024-01-09$115.46$147.78134,200
2024-01-08$118.40$151.54105,600
2024-01-05$118.95$152.25140,800
2024-01-04$119.98$153.57105,900
2024-01-03$121.32$155.28141,900
2024-01-02$122.17$156.3797,700