Dark

IOSP
Innospec Inc.
stock NASDAQ

At Close

Sep 22, 2026 3:59:54 PM EDT

96.16USD+3.889%(+3.60)349,834

81.39Bid 109.58Ask 28.19Spread

Pre-market

Sep 21, 2026 8:55:30 AM EDT

93.33USD+0.832%(+0.77)0

After-hours

Sep 22, 2026 4:03:30 PM EDT

96.82USD+0.686%(+0.66)400

OverviewOptionsHistoricalExchange VolumeShortsMore

IOSP Volume Sep 22, 2026

[ < ]

Exchange	Day%	Volume	30D%
Off Exchange¹	37.16	128,604	41.01
Nasdaq GSM	31.30	108,318	36.30
NYSE Arca	9.11	31,526	5.60
Cboe BZX	5.23	18,104	2.61
IEX	5.15	17,820	4.59
Cboe EDGX	3.09	10,683	2.39
Nasdaq BX	2.89	10,010	1.25
MEMX	2.37	8,187	1.17
NYSE	1.71	5,925	2.40
Cboe EDGA	0.52	1,816	0.37
Cboe BYX	0.44	1,523	1.16
NYSE National	0.40	1,389	0.56
MIAX Pearl	0.29	1,009	0.23
NYSE American	0.20	675	0.07
CHX	0.08	263	0.05
Nasdaq PHLX	0.07	233	0.21
LTSE	0.00	0	0.02
Texas Stock Exchange LLC	0.00	0	0.00
24X National	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

IOSP Nutrition Facts

1.96 servings per container

Serving size

176.45K

Calories

346.09K

% Day

% Avg

Off Exchange¹ 129K

37.16%

41.01%

Nasdaq GSM 108K

31.30%

36.30%

NYSE Arca 32K

9.11%

5.60%

Cboe BZX 18K

5.23%

2.61%

IEX 18K

5.15%

4.59%

Cboe EDGX 11K

3.09%

2.39%

Nasdaq BX 10K

2.89%

1.25%

MEMX 8K

2.37%

1.17%

NYSE 6K

1.71%

2.40%

Cboe EDGA 2K

0.52%

0.37%

Cboe BYX 2K

0.44%

1.16%

NYSE National 1K

0.40%

0.56%

MIAX Pearl 1K

0.29%

0.23%

NYSE American 675

0.20%

0.07%

CHX 263

0.08%

0.05%

Nasdaq PHLX 233

0.07%

0.21%

LTSE 0

0.00%

0.02%

Texas Stock Exchange LLC 0

0.00%

24X National 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

IOSP Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 128,604, which is 37.16% of today's total volume.
Today's Lit volume is 217,481, which is 62.84%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 41.01%.
The average Lit volume has been 58.99%.

IOSP Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe BZX

IEX

Cboe EDGX

Nasdaq BX

MEMX

NYSE

Cboe EDGA

Cboe BYX