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SEIC
SEI Investments Co
stock NASDAQ

At Close

May 15, 2026 3:59:52 PM EDT

90.57USD-1.232%(-1.13)565,428

0.00Bid 0.00Ask 0.00Spread

Pre-market

May 12, 2026 8:57:30 AM EDT

91.00USD-0.763%(-0.70)0

After-hours

May 15, 2026 4:00:30 PM EDT

90.58USD+0.011%(+0.01)148,047

OverviewOptionsHistoricalExchange VolumeShortsMore

SEIC Volume May 15, 2026

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	48.72	275,480	39.50
Off Exchange¹	33.54	189,655	41.07
IEX	6.05	34,209	5.06
NYSE Arca	2.86	16,191	4.57
Cboe EDGX	2.72	15,363	1.91
Cboe BZX	2.65	14,975	3.03
NYSE	0.86	4,862	1.11
Cboe BYX	0.55	3,111	0.61
MEMX	0.47	2,667	1.15
Cboe EDGA	0.38	2,167	0.53
NYSE National	0.31	1,772	0.31
Nasdaq BX	0.27	1,536	0.44
NYSE American	0.21	1,174	0.10
MIAX Pearl	0.17	946	0.20
Nasdaq PHLX	0.13	746	0.21
LTSE	0.09	494	0.08
CHX	0.01	57	0.11
24X National	0.00	0	0.01

chartexchange.com

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

SEIC Nutrition Facts

0.55 servings per container

Serving size

1.03M

Calories

565.41K

% Day

% Avg

Nasdaq GSM 275K

48.72%

39.50%

Off Exchange¹ 190K

33.54%

41.07%

IEX 34K

6.05%

5.06%

NYSE Arca 16K

2.86%

4.57%

Cboe EDGX 15K

2.72%

1.91%

Cboe BZX 15K

2.65%

3.03%

NYSE 5K

0.86%

1.11%

Cboe BYX 3K

0.55%

0.61%

MEMX 3K

0.47%

1.15%

Cboe EDGA 2K

0.38%

0.53%

NYSE National 2K

0.31%

Nasdaq BX 2K

0.27%

0.44%

NYSE American 1K

0.21%

0.10%

MIAX Pearl 946

0.17%

0.20%

Nasdaq PHLX 746

0.13%

0.21%

LTSE 494

0.09%

0.08%

CHX 57

0.01%

0.11%

24X National 0

0.00%

0.01%

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

chartexchange.com

SEIC Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 189,655, which is 33.54% of today's total volume.
Today's Lit volume is 375,750, which is 66.46%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 41.07%.
The average Lit volume has been 58.93%.

SEIC Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe EDGX

Cboe BZX

NYSE

Cboe BYX

MEMX

Cboe EDGA

NYSE National