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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$123.24$157.7474,500——
2023-12-28$124.57$159.4456,700——
2023-12-27$124.88$159.8458,500——
2023-12-26$125.14$160.1754,100——
2023-12-22$123.89$158.5788,800——
2023-12-21$122.94$157.3565,600——
2023-12-20$121.56$155.59162,600——
2023-12-19$122.73$157.09187,000——
2023-12-18$119.49$152.94131,300——
2023-12-15$119.87$153.43457,000——
2023-12-14$117.86$150.85143,500——
2023-12-13$113.92$145.81103,900——
2023-12-12$109.71$140.4283,900——
2023-12-11$110.88$141.9263,200——
2023-12-08$109.58$140.2562,500——
2023-12-07$110.63$141.6064,200——
2023-12-06$108.38$138.7265,800——
2023-12-05$108.33$138.6571,200——
2023-12-04$108.32$138.6480,300——
2023-12-01$107.07$137.0460,400——
2023-11-30$105.07$134.4880,000——
2023-11-29$104.87$134.2348,900——
2023-11-28$105.55$135.1051,700——
2023-11-27$105.99$135.6697,800——
2023-11-24$106.43$136.2243,900——
2023-11-22$105.94$135.6064,900——
2023-11-21$106.57$136.4081,200——
2023-11-20$108.47$138.8373,400——
2023-11-17$108.46$138.8292,800——
2023-11-16$108.76$138.2860,400——
2023-11-15$109.26$138.9270,200——
2023-11-14$108.92$138.4983,100——
2023-11-13$103.43$131.5152,900——
2023-11-10$101.52$129.08114,300——
2023-11-09$100.92$128.32125,700——
2023-11-08$101.43$128.9658,900——
2023-11-07$99.47$126.4755,900——
2023-11-06$100.72$128.0664,600——
2023-11-03$100.35$127.5978,300——
2023-11-02$98.32$125.01101,800——
2023-11-01$97.81$124.3648,200——
2023-10-31$98.00$124.6037,900——
2023-10-30$97.61$124.1141,400——
2023-10-27$96.36$122.5261,600——
2023-10-26$97.57$124.0645,500——
2023-10-25$97.40$123.8466,200——
2023-10-24$96.92$123.2345,600——
2023-10-23$96.77$123.0460,100——
2023-10-20$98.01$124.6272,000——
2023-10-19$98.28$124.9664,300——
2023-10-18$99.82$126.9249,000——
2023-10-17$100.83$128.2075,800——
2023-10-16$99.09$125.9949,600——
2023-10-13$98.74$125.5447,500——
2023-10-12$99.58$126.6146,100——
2023-10-11$101.26$128.7557,900——
2023-10-10$102.13$129.8564,100——
2023-10-09$102.28$130.0450,800——
2023-10-06$101.15$128.6162,600——
2023-10-05$100.58$127.8869,100——
2023-10-04$100.77$128.1262,300——
2023-10-03$100.39$127.6466,000——
2023-10-02$100.48$127.7686,400——
2023-09-29$102.20$129.9484,500——
2023-09-28$103.23$131.25100,600——
2023-09-27$101.98$129.6683,500——
2023-09-26$99.82$126.9274,200——
2023-09-25$101.94$129.6196,200——
2023-09-22$101.68$129.2852,200——
2023-09-21$101.13$128.5873,800——
2023-09-20$101.42$128.9582,500——
2023-09-19$103.34$131.3965,800——
2023-09-18$105.44$134.0654,200——
2023-09-15$106.84$135.84386,400——
2023-09-14$107.50$136.6887,300——
2023-09-13$107.19$136.29106,600——
2023-09-12$106.51$135.4294,000——
2023-09-11$104.67$133.0878,200——
2023-09-08$103.62$131.7565,500——
2023-09-07$104.24$132.54117,400——
2023-09-06$104.36$132.6993,700——
2023-09-05$102.79$130.69119,100——
2023-09-01$109.12$138.7483,700——
2023-08-31$107.42$136.5859,300——
2023-08-30$108.67$138.1747,400——
2023-08-29$107.53$136.7262,300——
2023-08-28$105.89$134.6377,100——
2023-08-25$103.53$131.6361,300——
2023-08-24$103.21$131.2395,600——
2023-08-23$103.82$132.0071,800——
2023-08-22$103.55$131.6651,900——
2023-08-21$104.62$133.0272,300——
2023-08-18$106.48$135.3898,900——
2023-08-17$104.46$132.8265,300——
2023-08-16$104.09$132.3595,100——
2023-08-15$105.03$133.5458,200——
2023-08-14$106.54$135.4679,900——
2023-08-11$108.09$137.43113,900——
2023-08-10$109.90$139.7387,000——
2023-08-09$107.25$136.36122,800——
2023-08-08$104.04$132.28111,200——
2023-08-07$106.71$135.6857,900——
2023-08-04$107.02$136.0753,400——
2023-08-03$107.64$136.8649,600——
2023-08-02$107.72$136.9644,500——
2023-08-01$107.88$137.1655,800——
2023-07-31$107.14$136.2268,600——
2023-07-28$105.80$134.52102,900——
2023-07-27$106.41$135.3080,700——
2023-07-26$108.39$137.8161,600——
2023-07-25$108.64$138.1396,500——
2023-07-24$107.37$136.5274,700——
2023-07-21$105.52$134.16104,700——
2023-07-20$105.50$134.1479,900——
2023-07-19$103.47$131.5681,800——
2023-07-18$102.90$130.8355,100——
2023-07-17$100.73$128.0781,000——
2023-07-14$101.22$128.7053,200——
2023-07-13$101.90$129.5683,200——
2023-07-12$101.44$128.9859,100——
2023-07-11$99.29$126.2455,200——
2023-07-10$99.02$125.9053,800——
2023-07-07$98.95$125.8196,700——
2023-07-06$98.35$125.0559,000——
2023-07-05$99.35$126.3280,100——
2023-07-03$101.55$129.1223,600——
2023-06-30$100.44$127.71100,600——
2023-06-29$100.62$127.9346,500——
2023-06-28$98.74$125.5437,200——
2023-06-27$98.67$125.4556,600——
2023-06-26$98.07$124.6961,100——
2023-06-23$97.05$123.39169,600——
2023-06-22$98.29$124.9773,500——
2023-06-21$98.84$125.6766,000——
2023-06-20$98.85$125.6877,000——
2023-06-16$101.07$128.51263,700——
2023-06-15$100.89$128.2878,900——
2023-06-14$99.40$126.3880,300——
2023-06-13$100.39$127.6476,000——
2023-06-12$99.26$126.2068,700——
2023-06-09$99.96$127.0951,300——
2023-06-08$101.52$129.0867,900——
2023-06-07$102.67$130.54112,200——
2023-06-06$99.19$126.1277,400——
2023-06-05$96.62$122.8592,500——
2023-06-02$99.56$126.5984,300——
2023-06-01$93.74$119.1955,000——
2023-05-31$92.36$117.43126,600——
2023-05-30$94.14$119.7044,400——
2023-05-26$94.96$120.7457,300——
2023-05-25$95.09$120.9093,500——
2023-05-24$96.96$123.2895,700——
2023-05-23$99.49$126.50100,200——
2023-05-22$99.04$125.9351,200——
2023-05-19$98.70$125.4984,200——
2023-05-18$98.76$124.6966,900——
2023-05-17$97.90$123.6182,400——
2023-05-16$96.57$121.9380,900——
2023-05-15$97.45$123.0451,300——
2023-05-12$97.18$122.7099,800——
2023-05-11$96.51$121.8546,600——
2023-05-10$96.75$122.1557,000——
2023-05-09$96.89$122.3369,000——
2023-05-08$98.36$124.1943,500——
2023-05-05$99.68$125.8586,900——
2023-05-04$100.22$126.54174,700——
2023-05-03$98.83$124.78161,200——
2023-05-02$99.64$125.8068,900——
2023-05-01$100.92$127.4240,500——
2023-04-28$101.63$128.3256,000——
2023-04-27$100.84$127.3267,000——
2023-04-26$100.14$126.4349,400——
2023-04-25$101.66$128.3558,500——
2023-04-24$104.95$132.5167,900——
2023-04-21$104.27$131.6577,400——
2023-04-20$105.32$132.97110,600——
2023-04-19$105.81$133.5987,400——
2023-04-18$106.32$134.2457,300——
2023-04-17$107.19$135.3458,800——
2023-04-14$106.22$134.1171,400——
2023-04-13$106.30$134.2157,200——
2023-04-12$106.26$134.16102,300——
2023-04-11$106.06$133.9176,300——
2023-04-10$105.67$133.42156,500——
2023-04-06$102.13$128.95112,600——
2023-04-05$102.36$129.24101,300——
2023-04-04$102.15$128.97111,900——
2023-04-03$103.03$130.08117,300——
2023-03-31$102.67$129.63116,900——
2023-03-30$100.96$127.4784,200——
2023-03-29$101.75$128.47112,800——
2023-03-28$102.15$128.97178,000——
2023-03-27$100.82$127.2974,700——
2023-03-24$100.33$126.6792,800——
2023-03-23$99.19$125.23112,400——
2023-03-22$99.90$126.13119,300——
2023-03-21$102.78$129.77110,700——
2023-03-20$102.08$128.8880,700——
2023-03-17$100.04$126.31303,700——
2023-03-16$102.14$128.9690,700——
2023-03-15$99.81$126.02123,000——
2023-03-14$102.41$129.30148,400——
2023-03-13$99.30$125.3768,100——
2023-03-10$101.31$127.9199,500——
2023-03-09$104.15$131.5079,900——
2023-03-08$106.38$134.31123,500——
2023-03-07$106.32$134.24107,900——
2023-03-06$105.70$133.45130,400——
2023-03-03$111.35$140.59138,700——
2023-03-02$109.88$138.73144,100——
2023-03-01$108.89$137.48131,200——
2023-02-28$109.46$138.20123,900——
2023-02-27$111.71$141.0491,700——
2023-02-24$109.42$138.15101,000——
2023-02-23$108.84$137.42142,400——
2023-02-22$108.80$137.37236,200——
2023-02-21$112.64$142.22106,900——
2023-02-17$115.31$145.5992,700——
2023-02-16$114.65$144.75122,700——
2023-02-15$114.08$144.0355,600——
2023-02-14$113.43$143.2190,400——
2023-02-13$112.13$141.5757,000——
2023-02-10$109.65$138.4475,000——
2023-02-09$109.70$138.5079,800——
2023-02-08$111.99$141.4062,200——
2023-02-07$114.38$144.4190,000——
2023-02-06$114.15$144.1295,700——
2023-02-03$114.62$144.72136,200——
2023-02-02$115.27$145.5480,200——
2023-02-01$114.30$144.3198,500——
2023-01-31$113.02$142.7073,900——
2023-01-30$109.55$138.3243,500——
2023-01-27$109.87$138.7228,100——
2023-01-26$110.98$140.1237,200——
2023-01-25$109.92$138.7851,000——
2023-01-24$109.87$138.7250,300——
2023-01-23$110.38$139.3656,200——
2023-01-20$111.21$140.4177,800——
2023-01-19$111.26$140.4782,600——
2023-01-18$111.28$140.5061,700——
2023-01-17$110.88$139.9959,700——
2023-01-13$109.72$138.5356,300——
2023-01-12$108.20$136.6165,900——
2023-01-11$105.51$133.2175,800——
2023-01-10$104.97$132.5385,900——
2023-01-09$104.33$131.7288,800——
2023-01-06$105.48$133.1866,500——
2023-01-05$102.80$129.7986,000——
2023-01-04$104.66$132.14109,300——
2023-01-03$103.54$130.7381,900——