Dark

SEIC
SEI Investments Co
stock NASDAQ

At Close

Oct 17, 2025 3:59:52 PM EDT

80.78USD+0.360%(+0.29)630,252

0.00Bid 0.00Ask 0.00Spread

Pre-market

Oct 13, 2025 9:06:30 AM EDT

83.00USD+3.118%(+2.51)0

After-hours

Oct 17, 2025 4:00:30 PM EDT

80.79USD+0.012%(+0.01)2,107

OverviewOptionsHistoricalExchange VolumeShortsMore

SEIC Volume Oct 17, 2025

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	42.11	265,390	46.00
Off Exchange¹	38.26	241,138	35.23
IEX	5.27	33,194	4.25
NYSE Arca	4.57	28,791	4.43
Cboe BZX	3.24	20,393	2.85
NYSE	2.30	14,521	1.81
Cboe EDGX	1.27	7,973	1.89
Nasdaq BX	0.78	4,899	0.55
MEMX	0.68	4,275	0.82
Cboe BYX	0.64	4,023	0.80
NYSE National	0.32	2,003	0.30
Cboe EDGA	0.21	1,293	0.62
MIAX Pearl	0.16	978	0.19
Nasdaq PHLX	0.10	619	0.11
NYSE American	0.10	613	0.10
CHX	0.02	149	0.02
LTSE	0.00	0	0.03

chartexchange.com

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

SEIC Nutrition Facts

0.85 servings per container

Serving size

739.77K

Calories

630.25K

% Day

% Avg

Nasdaq GSM 265K

42.11%

46.00%

Off Exchange¹ 241K

38.26%

35.23%

IEX 33K

5.27%

4.25%

NYSE Arca 29K

4.57%

4.43%

Cboe BZX 20K

3.24%

2.85%

NYSE 15K

2.30%

1.81%

Cboe EDGX 8K

1.27%

1.89%

Nasdaq BX 5K

0.78%

0.55%

MEMX 4K

0.68%

0.82%

Cboe BYX 4K

0.64%

0.80%

NYSE National 2K

0.32%

0.30%

Cboe EDGA 1K

0.21%

0.62%

MIAX Pearl 978

0.16%

0.19%

Nasdaq PHLX 619

0.10%

0.11%

NYSE American 613

0.10%

CHX 149

0.02%

LTSE 0

0.00%

0.03%

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 241,138, which is 38.26% of today's total volume.
Today's Lit volume is 389,114, which is 61.74%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 35.23%.
The average Lit volume has been 64.77%.

SEIC Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

Nasdaq BX

MEMX

Cboe BYX

NYSE National