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SEIC
SEI Investments Co
stock NASDAQ

At Close

Sep 15, 2025 3:59:53 PM EDT

86.60USD+0.116%(+0.10)654,018

86.57Bid 86.61Ask 0.04Spread

Pre-market

Sep 10, 2025 8:39:30 AM EDT

86.75USD+0.289%(+0.25)0

After-hours

Sep 15, 2025 4:00:30 PM EDT

86.60USD0.000%(0.00)1,738

OverviewOptionsHistoricalExchange VolumeShortsMore

SEIC Volume Sep 15, 2025

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	44.76	292,731	41.49
Off Exchange¹	36.21	236,825	37.63
NYSE Arca	3.97	25,964	4.82
Cboe BZX	3.77	24,652	3.28
IEX	2.75	17,959	4.35
Cboe EDGX	2.30	15,024	2.24
Cboe EDGA	1.35	8,824	0.73
Cboe BYX	1.29	8,461	0.99
NYSE	1.26	8,222	2.12
MEMX	0.89	5,834	0.83
NYSE National	0.72	4,688	0.29
Nasdaq BX	0.44	2,899	0.52
MIAX Pearl	0.18	1,195	0.19
Nasdaq PHLX	0.05	301	0.15
NYSE American	0.04	271	0.09
CHX	0.02	100	0.23
LTSE	0.01	68	0.05

chartexchange.com

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

SEIC Nutrition Facts

1.07 servings per container

Serving size

609.34K

Calories

654.02K

% Day

% Avg

Nasdaq GSM 293K

44.76%

41.49%

Off Exchange¹ 237K

36.21%

37.63%

NYSE Arca 26K

3.97%

4.82%

Cboe BZX 25K

3.77%

3.28%

IEX 18K

2.75%

4.35%

Cboe EDGX 15K

2.30%

2.24%

Cboe EDGA 9K

1.35%

0.73%

Cboe BYX 8K

1.29%

0.99%

NYSE 8K

1.26%

2.12%

MEMX 6K

0.89%

0.83%

NYSE National 5K

0.72%

0.29%

Nasdaq BX 3K

0.44%

0.52%

MIAX Pearl 1K

0.18%

0.19%

Nasdaq PHLX 301

0.05%

0.15%

NYSE American 271

0.04%

0.09%

CHX 100

0.02%

0.23%

LTSE 68

0.01%

0.05%

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 236,825, which is 36.21% of today's total volume.
Today's Lit volume is 417,193, which is 63.79%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 37.63%.
The average Lit volume has been 62.37%.

SEIC Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

Cboe BZX

IEX

Cboe EDGX

Cboe EDGA

Cboe BYX

NYSE

MEMX

NYSE National