Innospec Inc. (IOSP) NASDAQ

Currency In USD

IOSP Historical Return

If you invested $1000 in Innospec Inc. (IOSP) 10 years ago, it would be worth $1,449.28 as of November 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $891.89, while $1000 invested 1 year ago would be worth $1,058.55. This corresponds to total returns of 44.93%, -10.81%, 5.85%, respectively, with annualized returns of 3.78%, -2.26%, 5.85%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

IOSP Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
November 11, 2026	79.09	78.29	78.29	79.75	77.62	181,767
November 10, 2026	79.69	77.72	77.72	79.69	77.61	244,683
November 09, 2026	79.17	80.21	80.21	80.54	78.3	501,486
November 06, 2026	79.52	78.21	78.21	79.82	77.77	226,122
November 05, 2026	81.26	79.13	79.13	82.97	77.84	453,348
November 04, 2026	91.65	80.65	80.65	93.99	79.89	482,108
November 03, 2026	99.39	99.23	99.23	100.72	98.94	270,997
November 02, 2026	100.49	99.55	99.55	101.48	99.21	199,994
October 30, 2026	101.54	99.89	99.89	102	99.46	215,805
October 29, 2026	101.27	101.41	101.41	101.8	100.07	198,998
October 28, 2026	99.83	100.7	100.7	100.76	99	145,374
October 27, 2026	99.72	99.92	99.92	100.11	99.14	131,478
October 26, 2026	99.12	99.18	99.18	100.62	98.79	126,941
October 23, 2026	97.74	98.64	98.64	98.91	97.12	113,242
October 22, 2026	99.1	98.67	98.67	100.07	98.45	501,940
October 21, 2026	99.34	99.64	99.64	99.77	98.76	364,831
October 20, 2026	98.32	99.16	99.16	99.88	97.4	414,538
October 19, 2026	96.83	97.99	97.99	98.49	96.32	242,657
October 16, 2026	96.75	96.81	96.81	97.4	96.06	173,644
October 15, 2026	97.56	96.6	96.6	98.67	96.12	239,147
October 14, 2026	96.5	97.1	97.1	97.66	96.5	150,835
October 13, 2026	96.3	97.43	97.43	97.89	95.9	128,419
October 12, 2026	95.7	95.66	95.66	96.5	95	167,066
October 09, 2026	97.48	95.65	95.65	97.89	95.53	182,352
October 08, 2026	97.05	97.69	97.69	98.49	96.06	168,200
October 07, 2026	97.39	97.42	97.42	98.64	96.85	304,610
October 06, 2026	98.27	98.55	98.55	99.22	97.32	232,433
October 05, 2026	97.62	97.65	97.65	98.6	96.72	162,517
October 02, 2026	96.43	97.41	97.41	98.67	95.44	196,536
October 01, 2026	94.83	95.17	95.17	95.69	93.64	267,607
September 30, 2026	97.16	95.32	95.32	97.24	95.09	224,921
September 29, 2026	97.56	96.72	96.72	98.09	96.11	114,204
September 28, 2026	98.72	97.88	97.88	100.48	97.58	284,658
September 25, 2026	97.1	98.72	98.72	98.77	96.87	201,985
September 24, 2026	96.61	96.87	96.87	97.5	95.76	211,698
September 23, 2026	96.08	96.6	96.6	98	95.77	262,136
September 22, 2026	93.52	96.08	96.08	96.4	92.71	349,834
September 21, 2026	92.85	92.56	92.56	93.34	92.3	150,510
September 18, 2026	92.79	93.15	93.15	94.05	91.55	535,746
September 17, 2026	93.88	93.18	93.18	93.88	92.32	183,434
September 16, 2026	92.27	92.93	92.93	94.08	91.11	185,448
September 15, 2026	91.96	91.82	91.82	92.23	91	261,348
September 11, 2026	93.83	93.23	93.23	93.83	92.6	80,068
September 10, 2026	93.9	93.08	93.08	94.35	92	102,037
September 09, 2026	92.74	93.57	93.57	94.05	92.4	127,186
September 08, 2026	93.28	93.37	93.37	96.14	92.49	135,641
September 04, 2026	92.43	93.95	93.95	94.28	92.4	103,256
September 03, 2026	94.36	93.12	93.12	94.55	92.44	190,509
September 02, 2026	92.6	93.76	93.76	95.38	92.51	156,433
September 01, 2026	93.12	92.61	92.61	93.87	92.3	122,268
August 31, 2026	95.49	93.86	93.86	95.95	93.62	160,602
August 28, 2026	95.73	95.38	95.38	96.68	94.92	163,826
August 27, 2026	94.7	95.34	95.34	96.41	93.91	193,856
August 26, 2026	94.51	95.66	95.66	96.14	94.16	224,635
August 25, 2026	94.73	94.36	94.36	94.78	93.14	180,468
August 24, 2026	93.7	94.73	94.73	94.98	92.81	189,624
August 21, 2026	93.71	93.63	93.63	93.88	92.76	120,050
August 20, 2026	92.83	92.92	92.92	94.58	91.8	101,335
August 19, 2026	94.47	93.76	93.76	95.01	93.06	108,207
August 18, 2026	93.86	93.56	93.56	94.65	93.05	208,979