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AON
Aon plc Class A
stock NYSE

At Close

Sep 9, 2026 3:59:57 PM EDT

304.77USD-3.490%(-11.02)2,251,531

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 8, 2026 9:22:30 AM EDT

323.15USD+2.331%(+7.36)0

After-hours

Sep 9, 2026 4:10:30 PM EDT

304.69USD-0.026%(-0.08)305,439

OverviewOptionsHistoricalDark Pool LevelsShortsMore

AON Volume Sep 9, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	51.44	1,010,371	48.18
NYSE	23.74	466,301	26.80
Nasdaq GSM	8.04	157,885	7.60
IEX	6.24	122,564	5.07
Cboe BZX	4.53	89,056	4.04
NYSE Arca	2.62	51,403	2.72
Cboe EDGX	1.05	20,634	1.02
MEMX	0.80	15,642	0.57
Cboe BYX	0.37	7,208	0.61
Cboe EDGA	0.33	6,393	0.42
NYSE American	0.21	4,081	0.15
MIAX Pearl	0.19	3,788	0.16
NYSE National	0.13	2,487	0.40
Nasdaq BX	0.11	2,134	0.46
Nasdaq PHLX	0.11	2,082	0.12
CHX	0.06	1,121	1.64
Texas Stock Exchange LLC	0.05	1,007	0.02
24X National	0.00	4	0.00

chartexchange.com

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

AON Nutrition Facts

1.58 servings per container

Serving size

1.24M

Calories

1.96M

% Day

% Avg

Off Exchange¹ 1M

51.44%

48.18%

NYSE 466K

23.74%

26.80%

Nasdaq GSM 158K

8.04%

7.60%

IEX 123K

6.24%

5.07%

Cboe BZX 89K

4.53%

4.04%

NYSE Arca 51K

2.62%

2.72%

Cboe EDGX 21K

1.05%

1.02%

MEMX 16K

0.80%

0.57%

Cboe BYX 7K

0.37%

0.61%

Cboe EDGA 6K

0.33%

0.42%

NYSE American 4K

0.21%

0.15%

MIAX Pearl 4K

0.19%

0.16%

NYSE National 2K

0.13%

0.40%

Nasdaq BX 2K

0.11%

0.46%

Nasdaq PHLX 2K

0.11%

0.12%

CHX 1K

0.06%

1.64%

Texas Stock Exchange LLC 1K

0.05%

0.02%

24X National 4

0.00%

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

chartexchange.com

AON Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,010,371, which is 51.44% of today's total volume.
Today's Lit volume is 953,790, which is 48.56%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.18%.
The average Lit volume has been 51.82%.

AON Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

IEX

Cboe BZX

NYSE Arca

Cboe EDGX

MEMX

Cboe BYX

Cboe EDGA

NYSE American