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 — 2007

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2007-12-31$17.16$17.61129,700
2007-12-28$17.41$17.87106,400
2007-12-27$17.88$18.3575,300
2007-12-26$18.66$19.1573,200
2007-12-24$19.10$19.6044,200
2007-12-21$18.80$19.29224,900
2007-12-20$17.99$18.46109,500
2007-12-19$17.90$18.37127,500
2007-12-18$18.09$18.56176,000
2007-12-17$18.16$18.6487,900
2007-12-14$18.52$19.00257,700
2007-12-13$19.33$19.84348,100
2007-12-12$18.85$19.34177,600
2007-12-11$18.34$18.82209,400
2007-12-10$18.64$19.13107,900
2007-12-07$17.96$18.43246,500
2007-12-06$17.45$17.91243,400
2007-12-05$17.40$17.8697,700
2007-12-04$17.17$17.62199,100
2007-12-03$17.28$17.73153,500
2007-11-30$17.56$18.02214,500
2007-11-29$16.86$17.30138,800
2007-11-28$17.15$17.60137,300
2007-11-27$16.26$16.69105,100
2007-11-26$16.43$16.86122,200
2007-11-23$16.87$17.3167,200
2007-11-21$16.71$17.1572,400
2007-11-20$17.00$17.45177,600
2007-11-19$17.14$17.59220,100
2007-11-16$18.48$18.96260,600
2007-11-15$17.04$17.49146,000
2007-11-14$18.34$18.82148,800
2007-11-13$18.71$19.20220,200
2007-11-12$18.29$18.77132,500
2007-11-09$18.81$19.30151,000
2007-11-08$19.29$19.80216,600
2007-11-07$18.92$19.42257,200
2007-11-06$20.84$21.39132,100
2007-11-05$19.67$20.18128,800
2007-11-02$20.39$20.92146,100
2007-11-01$19.88$20.40285,000
2007-10-31$21.29$21.85126,000
2007-10-30$21.10$21.6583,300
2007-10-29$21.08$21.63101,600
2007-10-26$21.86$22.43146,100
2007-10-25$21.14$21.6999,100
2007-10-24$21.51$22.07109,500
2007-10-23$22.52$23.1194,700
2007-10-22$22.33$22.91101,200
2007-10-19$22.13$22.71103,300
2007-10-18$23.50$24.1258,500
2007-10-17$23.26$23.87120,000
2007-10-16$23.26$23.87143,700
2007-10-15$23.50$24.12181,800
2007-10-12$23.71$24.33145,400
2007-10-11$23.13$23.74190,700
2007-10-10$23.81$24.43180,000
2007-10-09$23.91$24.54140,900
2007-10-08$23.46$24.07141,300
2007-10-05$23.55$24.17195,800
2007-10-04$22.86$23.46174,800
2007-10-03$22.50$23.09171,200
2007-10-02$23.38$23.99149,300
2007-10-01$23.49$24.10119,900
2007-09-28$22.78$23.38135,400
2007-09-27$22.39$22.98155,100
2007-09-26$22.82$23.4289,500
2007-09-25$22.57$23.1677,800
2007-09-24$22.78$23.3882,700
2007-09-21$23.68$24.30144,200
2007-09-20$24.34$24.9890,000
2007-09-19$25.24$25.90112,300
2007-09-18$25.00$25.65129,800
2007-09-17$21.78$22.35181,500
2007-09-14$22.18$22.7659,800
2007-09-13$22.08$22.6686,900
2007-09-12$21.51$22.0783,900
2007-09-11$21.74$22.31100,600
2007-09-10$21.74$22.31105,800
2007-09-07$22.33$22.9190,000
2007-09-06$23.51$24.13101,900
2007-09-05$23.52$24.14136,700
2007-09-04$24.28$24.92144,400
2007-08-31$24.84$25.4977,000
2007-08-30$24.75$25.40103,300
2007-08-29$25.06$25.6776,700
2007-08-28$23.73$24.31141,400
2007-08-27$24.87$25.4895,500
2007-08-24$26.00$26.6396,300
2007-08-23$25.10$25.71109,500
2007-08-22$26.43$27.07228,900
2007-08-21$24.35$24.94152,000
2007-08-20$24.33$24.92184,900
2007-08-17$22.77$23.32282,800
2007-08-16$23.36$23.93388,000
2007-08-15$21.99$22.53356,700
2007-08-14$21.33$21.85600,600
2007-08-13$24.77$25.37511,700
2007-08-10$20.75$21.26614,300
2007-08-09$18.72$19.18806,400
2007-08-08$22.11$22.65656,100
2007-08-07$23.21$23.77280,400
2007-08-06$25.92$26.55213,400
2007-08-03$25.68$26.30274,500
2007-08-02$27.40$28.07167,900
2007-08-01$28.36$29.05178,900
2007-07-31$27.53$28.20154,600
2007-07-30$27.89$28.57140,200
2007-07-27$27.55$28.22179,000
2007-07-26$28.90$29.60177,700
2007-07-25$30.51$31.25188,600
2007-07-24$29.71$30.43184,500
2007-07-23$31.82$32.59230,300
2007-07-20$30.34$31.08169,400
2007-07-19$31.34$32.11131,600
2007-07-18$30.80$31.55105,800
2007-07-17$30.43$31.18256,000
2007-07-16$29.60$30.32113,600
2007-07-13$30.32$31.0692,200
2007-07-12$30.18$30.91129,800
2007-07-11$29.37$30.08123,800
2007-07-10$29.42$30.14166,400
2007-07-09$30.14$30.87165,000
2007-07-06$30.34$31.08107,600
2007-07-05$30.69$31.44132,600
2007-07-03$30.87$31.6269,400
2007-07-02$30.67$31.41186,200
2007-06-29$29.61$30.33118,400
2007-06-28$30.50$31.25129,800
2007-06-27$30.72$31.47132,800
2007-06-26$29.90$30.63178,400
2007-06-25$30.45$31.19145,400
2007-06-22$30.55$31.29406,000
2007-06-21$29.93$30.66110,400
2007-06-20$29.47$30.19158,600
2007-06-19$30.99$31.74183,400
2007-06-18$30.62$31.37244,200
2007-06-15$29.08$29.79242,800
2007-06-14$29.01$29.72128,600
2007-06-13$28.03$28.71132,800
2007-06-12$27.44$28.11147,000
2007-06-11$28.67$29.3797,600
2007-06-08$28.22$28.9175,400
2007-06-07$27.97$28.65114,200
2007-06-06$28.09$28.77150,800
2007-06-05$29.26$29.97133,000
2007-06-04$30.13$30.8688,000
2007-06-01$29.76$30.4989,400
2007-05-31$29.90$30.63284,400
2007-05-30$29.87$30.59139,800
2007-05-29$29.46$30.17101,200
2007-05-25$29.53$30.25101,400
2007-05-24$28.48$29.17147,200
2007-05-23$29.95$30.67119,200
2007-05-22$31.06$31.81151,000
2007-05-21$30.33$31.0795,200
2007-05-18$30.08$30.82130,200
2007-05-17$29.80$30.52114,200
2007-05-16$30.76$31.51125,000
2007-05-15$29.91$30.63196,800
2007-05-14$29.75$30.48219,800
2007-05-11$30.37$31.10184,400
2007-05-10$28.49$29.18207,400
2007-05-09$28.89$29.59129,400
2007-05-08$28.07$28.75189,400
2007-05-07$28.47$29.16159,800
2007-05-04$28.18$28.87158,000
2007-05-03$27.26$27.92147,600
2007-05-02$27.31$27.97176,000
2007-05-01$26.30$26.93250,800
2007-04-30$26.84$27.50275,200
2007-04-27$28.24$28.92113,800
2007-04-26$28.50$29.19211,200
2007-04-25$29.07$29.78167,200
2007-04-24$29.32$30.03198,200
2007-04-23$29.00$29.7081,400
2007-04-20$29.05$29.75178,200
2007-04-19$29.69$30.41116,200
2007-04-18$29.09$29.8087,400
2007-04-17$29.51$30.23107,000
2007-04-16$29.50$30.22117,400
2007-04-13$29.24$29.95188,600
2007-04-12$29.62$30.34136,000
2007-04-11$29.16$29.86118,800
2007-04-10$29.41$30.1265,800
2007-04-09$29.36$30.0764,000
2007-04-05$29.61$30.33110,600
2007-04-04$29.25$29.96138,800
2007-04-03$29.49$30.21220,000
2007-04-02$28.70$29.39101,800
2007-03-30$28.82$29.52192,600
2007-03-29$29.15$29.86170,200
2007-03-28$28.57$29.26120,000
2007-03-27$29.30$30.01158,000
2007-03-26$30.54$31.28149,600
2007-03-23$29.38$30.1079,800
2007-03-22$29.22$29.93202,600
2007-03-21$29.63$30.35146,000
2007-03-20$28.33$29.0293,800
2007-03-19$28.05$28.73167,400
2007-03-16$27.49$28.15302,200
2007-03-15$28.58$29.28117,600
2007-03-14$27.43$28.10158,600
2007-03-13$27.66$28.33229,000
2007-03-12$28.50$29.19192,000
2007-03-09$28.18$28.87161,600
2007-03-08$28.11$28.79142,000
2007-03-07$28.22$28.91239,000
2007-03-06$28.17$28.86279,600
2007-03-05$25.79$26.4294,200
2007-03-02$26.17$26.81156,000
2007-03-01$27.05$27.71224,000
2007-02-28$25.91$26.49182,800
2007-02-27$25.66$26.24241,000
2007-02-26$26.84$27.45139,400
2007-02-23$27.25$27.8670,600
2007-02-22$27.61$28.23140,800
2007-02-21$27.57$28.1995,800
2007-02-20$27.08$27.70112,600
2007-02-16$27.17$27.78123,800
2007-02-15$26.56$27.15108,000
2007-02-14$26.57$27.16138,800
2007-02-13$26.25$26.84183,200
2007-02-12$25.28$25.85255,200
2007-02-09$25.38$25.95387,000
2007-02-08$24.36$24.911,075,200
2007-02-07$27.61$28.23169,600
2007-02-06$26.19$26.78231,600
2007-02-05$25.79$26.37231,600
2007-02-02$26.58$27.18163,200
2007-02-01$27.47$28.09223,200
2007-01-31$26.75$27.35226,000
2007-01-30$25.83$26.41165,200
2007-01-29$24.87$25.43291,400
2007-01-26$24.23$24.7897,400
2007-01-25$23.75$24.29142,200
2007-01-24$24.31$24.85129,200
2007-01-23$23.98$24.52173,600
2007-01-22$23.20$23.72178,600
2007-01-19$23.81$24.34117,000
2007-01-18$23.30$23.83141,800
2007-01-17$23.04$23.55138,000
2007-01-16$22.15$22.65180,800
2007-01-12$23.27$23.7982,600
2007-01-11$22.91$23.4287,600
2007-01-10$22.75$23.2695,200
2007-01-09$22.53$23.04141,800
2007-01-08$23.00$23.52119,000
2007-01-05$22.18$22.68128,000
2007-01-04$22.96$23.47187,200
2007-01-03$22.54$23.05259,600