Dark

SEM
SELECT MEDICAL HOLDINGS CORP
stock NYSE

Market Open

Jun 30, 2026 3:25:57 PM EDT

16.52USD-0.060%(-0.01)11,624,301

16.52Bid 16.53Ask 0.01Spread

Pre-market

Jun 30, 2026 9:27:30 AM EDT

16.52USD-0.060%(-0.01)300

After-hours

Jun 29, 2026 4:10:30 PM EDT

16.53USD0.000%(0.00)0

OverviewOptionsHistoricalExchange VolumeShortsMore

SEM Volume Jun 30, 2026 3:04:49 PM EDT

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Exchange	Day%	Volume	30D%
Off Exchange¹	76.04	7,953,897	48.70
IEX	7.10	742,785	7.87
NYSE	4.19	438,693	27.33
Nasdaq GSM	3.82	400,002	5.77
Cboe EDGX	2.89	302,296	1.54
NYSE Arca	2.21	230,764	2.89
Cboe EDGA	1.37	143,011	0.72
Cboe BZX	1.12	116,760	1.97
MEMX	0.52	54,751	0.46
Cboe BYX	0.44	46,018	1.34
NYSE National	0.13	13,625	0.88
NYSE American	0.07	7,754	0.10
Nasdaq BX	0.05	4,777	0.19
MIAX Pearl	0.03	3,182	0.13
Nasdaq PHLX	0.02	2,100	0.04
24X National	0.00	200	0.02
CHX	0.00	0	0.05

chartexchange.com

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

SEM Nutrition Facts

4.72 servings per container

Serving size

2.22M

Calories

10.46M

% Day

% Avg

Off Exchange¹ 8M

76.04%

48.70%

IEX 743K

7.10%

7.87%

NYSE 439K

4.19%

27.33%

Nasdaq GSM 400K

3.82%

5.77%

Cboe EDGX 302K

2.89%

1.54%

NYSE Arca 231K

2.21%

2.89%

Cboe EDGA 143K

1.37%

0.72%

Cboe BZX 117K

1.12%

1.97%

MEMX 55K

0.52%

0.46%

Cboe BYX 46K

0.44%

1.34%

NYSE National 14K

0.13%

0.88%

NYSE American 8K

0.07%

0.10%

Nasdaq BX 5K

0.05%

0.19%

MIAX Pearl 3K

0.03%

0.13%

Nasdaq PHLX 2K

0.02%

0.04%

24X National 200

0.00%

0.02%

CHX 0

0.00%

0.05%

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

chartexchange.com

SEM Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 7,953,897, which is 76.04% of today's total volume.
Today's Lit volume is 2,506,718, which is 23.96%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.70%.
The average Lit volume has been 51.30%.

SEM Volume by Exchange

Off Exchange

IEX

NYSE

Nasdaq GSM

Cboe EDGX

NYSE Arca

Cboe EDGA

Cboe BZX

MEMX

Cboe BYX

NYSE National