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.

View year

Historical Stock Price — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$70.60$83.78118,900
2017-12-28$70.70$83.9072,200
2017-12-27$70.05$83.1353,600
2017-12-26$70.20$83.3159,300
2017-12-22$69.20$82.1264,200
2017-12-21$69.00$81.8839,800
2017-12-20$68.75$81.5958,100
2017-12-19$68.55$81.3584,100
2017-12-18$68.90$81.7672,900
2017-12-15$68.80$81.65203,500
2017-12-14$67.25$79.8191,900
2017-12-13$68.35$81.1163,500
2017-12-12$68.95$81.8234,800
2017-12-11$69.20$82.1256,100
2017-12-08$68.90$81.7672,900
2017-12-07$70.05$83.1348,400
2017-12-06$70.10$83.1944,600
2017-12-05$70.75$83.96135,000
2017-12-04$71.80$85.2174,100
2017-12-01$70.20$83.3197,500
2017-11-30$71.40$84.7388,900
2017-11-29$72.95$86.57104,900
2017-11-28$72.40$85.92170,800
2017-11-27$71.30$84.61115,600
2017-11-24$71.50$84.8532,000
2017-11-22$71.65$85.0386,200
2017-11-21$70.80$84.02152,700
2017-11-20$69.80$82.83190,300
2017-11-17$69.45$82.4275,500
2017-11-16$69.15$82.0682,900
2017-11-15$67.60$80.2279,900
2017-11-14$68.10$80.35104,400
2017-11-13$67.25$79.3558,000
2017-11-10$65.85$77.70113,000
2017-11-09$67.75$79.94101,100
2017-11-08$69.70$82.24172,300
2017-11-07$62.40$73.6374,900
2017-11-06$63.55$74.9849,800
2017-11-03$63.00$74.3383,600
2017-11-02$63.30$74.6972,800
2017-11-01$62.25$73.4569,200
2017-10-31$61.85$72.98118,000
2017-10-30$60.95$71.9295,500
2017-10-27$62.00$73.1593,300
2017-10-26$61.70$72.8076,200
2017-10-25$62.15$73.33110,300
2017-10-24$62.85$74.1668,000
2017-10-23$63.00$74.33101,600
2017-10-20$63.05$74.3987,400
2017-10-19$63.00$74.3377,400
2017-10-18$63.15$74.5192,700
2017-10-17$63.05$74.3959,400
2017-10-16$63.20$74.5758,300
2017-10-13$62.95$74.2892,300
2017-10-12$63.15$74.5193,400
2017-10-11$63.20$74.57103,700
2017-10-10$62.65$73.9290,600
2017-10-09$61.95$73.1062,700
2017-10-06$62.45$73.6993,400
2017-10-05$62.40$73.6392,100
2017-10-04$61.95$73.1096,800
2017-10-03$63.05$74.3997,900
2017-10-02$62.30$73.51103,500
2017-09-29$61.65$72.74117,300
2017-09-28$61.35$72.3993,400
2017-09-27$61.40$72.45127,400
2017-09-26$59.30$69.9792,500
2017-09-25$58.65$69.2098,800
2017-09-22$58.35$68.8575,400
2017-09-21$57.90$68.32143,500
2017-09-20$58.25$68.7390,100
2017-09-19$57.70$68.0893,400
2017-09-18$57.75$68.1482,500
2017-09-15$57.00$67.26145,000
2017-09-14$56.45$66.6152,900
2017-09-13$56.15$66.2579,900
2017-09-12$56.15$66.2567,100
2017-09-11$56.10$66.1951,700
2017-09-08$55.45$65.4358,000
2017-09-07$54.25$64.0172,800
2017-09-06$55.45$65.4389,700
2017-09-05$55.50$65.4980,600
2017-09-01$55.40$65.37153,500
2017-08-31$55.50$65.4962,800
2017-08-30$55.20$65.1367,200
2017-08-29$55.30$65.2550,500
2017-08-28$55.45$65.4364,500
2017-08-25$55.85$65.9050,200
2017-08-24$56.45$66.6152,200
2017-08-23$56.60$66.7892,800
2017-08-22$56.80$67.02156,000
2017-08-21$54.75$64.6094,500
2017-08-18$55.30$65.2584,700
2017-08-17$55.30$65.25121,800
2017-08-16$57.05$67.3192,800
2017-08-15$57.15$67.4386,000
2017-08-14$57.20$67.49136,600
2017-08-11$56.75$66.96136,600
2017-08-10$57.75$68.14239,600
2017-08-09$59.65$70.38159,300
2017-08-08$63.40$74.8192,100
2017-08-07$62.60$73.86151,400
2017-08-04$62.65$73.9239,100
2017-08-03$62.18$73.3741,100
2017-08-02$63.10$74.4551,100
2017-08-01$63.70$75.1651,900
2017-07-31$62.40$73.63117,300
2017-07-28$62.50$73.7461,800
2017-07-27$62.55$73.8052,700
2017-07-26$63.20$74.57106,700
2017-07-25$64.25$75.8173,100
2017-07-24$64.40$75.9971,100
2017-07-21$64.20$75.7566,300
2017-07-20$64.95$76.6436,000
2017-07-19$65.35$77.1147,500
2017-07-18$64.45$76.0552,200
2017-07-17$64.40$75.9979,000
2017-07-14$64.70$76.3474,000
2017-07-13$64.78$76.43101,500
2017-07-12$65.50$77.2853,100
2017-07-11$64.30$75.8764,700
2017-07-10$64.80$76.4650,000
2017-07-07$65.35$77.1152,900
2017-07-06$64.50$76.1063,200
2017-07-05$65.25$76.9962,800
2017-07-03$66.10$77.9924,800
2017-06-30$65.55$77.3497,400
2017-06-29$64.80$76.4669,200
2017-06-28$65.40$77.1764,100
2017-06-27$63.45$74.8763,200
2017-06-26$63.15$74.5152,400
2017-06-23$63.25$74.63149,700
2017-06-22$63.30$74.6999,800
2017-06-21$62.90$74.2259,500
2017-06-20$64.75$76.4085,800
2017-06-19$65.90$77.7693,900
2017-06-16$66.15$78.05178,900
2017-06-15$67.05$79.1159,100
2017-06-14$67.70$79.8843,100
2017-06-13$68.95$81.3655,600
2017-06-12$69.00$81.4185,600
2017-06-09$69.15$81.5986,700
2017-06-08$67.30$79.4177,900
2017-06-07$66.25$78.1785,600
2017-06-06$65.55$77.3456,500
2017-06-05$65.75$77.5855,500
2017-06-02$66.55$78.5280,400
2017-06-01$64.60$76.22202,800
2017-05-31$64.00$75.51113,800
2017-05-30$64.15$75.6982,300
2017-05-26$64.25$75.8186,400
2017-05-25$64.25$75.8167,900
2017-05-24$63.95$75.46112,000
2017-05-23$63.70$75.1686,200
2017-05-22$62.80$74.10111,400
2017-05-19$61.80$72.9278,500
2017-05-18$61.30$72.3379,300
2017-05-17$61.45$72.06101,500
2017-05-16$63.75$74.75107,300
2017-05-15$63.60$74.5889,400
2017-05-12$63.15$74.0597,000
2017-05-11$63.30$74.23118,800
2017-05-10$64.30$75.40218,400
2017-05-09$65.10$76.34126,700
2017-05-08$64.85$76.0479,400
2017-05-05$65.15$76.4074,700
2017-05-04$65.05$76.2873,800
2017-05-03$65.10$76.3466,100
2017-05-02$65.80$77.1683,200
2017-05-01$65.85$77.2276,200
2017-04-28$66.00$77.3993,400
2017-04-27$66.55$78.0480,900
2017-04-26$66.05$77.4595,600
2017-04-25$65.55$76.8782,100
2017-04-24$63.60$74.5871,900
2017-04-21$62.00$72.7060,800
2017-04-20$62.35$73.1166,100
2017-04-19$60.95$71.4759,800
2017-04-18$60.80$71.3058,100
2017-04-17$61.15$71.7151,400
2017-04-13$60.40$70.8343,100
2017-04-12$61.50$72.12106,100
2017-04-11$62.90$73.7666,400
2017-04-10$62.05$72.7671,000
2017-04-07$62.20$72.9499,900
2017-04-06$61.80$72.4799,100
2017-04-05$61.30$71.88101,000
2017-04-04$62.55$73.3577,900
2017-04-03$63.25$74.17120,300
2017-03-31$64.75$75.93173,200
2017-03-30$63.80$74.8165,700
2017-03-29$62.70$73.5268,100
2017-03-28$62.60$73.4187,600
2017-03-27$61.95$72.6476,100
2017-03-24$61.90$72.58105,600
2017-03-23$62.10$72.8264,400
2017-03-22$61.70$72.3583,900
2017-03-21$61.70$72.35216,700
2017-03-20$62.55$73.3560,700
2017-03-17$63.30$74.23264,100
2017-03-16$62.50$73.2970,900
2017-03-15$63.20$74.11212,000
2017-03-14$61.85$72.53138,600
2017-03-13$62.55$73.35115,500
2017-03-10$62.25$73.00207,300
2017-03-09$61.00$71.53130,800
2017-03-08$61.65$72.29129,700
2017-03-07$63.50$74.4693,000
2017-03-06$64.40$75.52148,300
2017-03-03$65.95$77.33122,000
2017-03-02$66.65$78.15152,200
2017-03-01$67.80$79.50202,800
2017-02-28$65.30$76.57142,900
2017-02-27$67.60$79.27244,500
2017-02-24$67.80$79.50127,600
2017-02-23$68.00$79.74182,600
2017-02-22$68.45$80.27145,300
2017-02-21$69.90$81.97166,300
2017-02-17$70.60$82.79372,800
2017-02-16$69.85$81.91176,700
2017-02-15$73.25$85.89224,300
2017-02-14$70.05$82.14135,700
2017-02-13$69.30$81.2681,000
2017-02-10$69.40$81.3867,200
2017-02-09$68.50$80.32178,400
2017-02-08$67.45$79.09100,300
2017-02-07$68.75$80.6273,700
2017-02-06$69.35$81.3256,700
2017-02-03$70.50$82.67103,900
2017-02-02$68.95$80.85122,300
2017-02-01$70.85$83.08150,500
2017-01-31$71.35$83.67170,500
2017-01-30$71.50$83.84118,700
2017-01-27$72.20$84.6660,900
2017-01-26$72.05$84.4986,500
2017-01-25$71.85$84.25101,400
2017-01-24$70.15$82.2678,300
2017-01-23$68.05$79.8064,900
2017-01-20$67.65$79.3380,400
2017-01-19$66.55$78.0484,100
2017-01-18$68.00$79.7495,900
2017-01-17$66.63$78.13224,500
2017-01-13$67.55$79.21105,000
2017-01-12$67.70$79.3990,700
2017-01-11$68.80$80.6872,300
2017-01-10$68.00$79.74119,700
2017-01-09$67.70$79.39176,100
2017-01-06$68.45$80.2755,500
2017-01-05$69.10$81.0378,600
2017-01-04$70.25$82.38110,100
2017-01-03$69.50$81.5089,100