Dark

SEM
SELECT MEDICAL HOLDINGS CORP
stock NYSE

Market Open

Jun 30, 2026 2:21:33 PM EDT

16.52USD-0.030%(-0.01)10,004,676

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 2:05:02 PM EDT

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Exchange	Day%	Volume	30D%
Off Exchange¹	77.65	7,460,300	48.60
IEX	6.33	608,304	7.78
NYSE	4.36	418,578	27.61
Nasdaq GSM	3.48	334,094	5.74
Cboe EDGX	2.76	264,986	1.50
NYSE Arca	2.18	209,232	2.90
Cboe EDGA	1.17	111,948	0.69
Cboe BZX	0.93	89,362	1.96
MEMX	0.48	46,239	0.45
Cboe BYX	0.42	40,491	1.35
NYSE National	0.11	10,139	0.89
NYSE American	0.07	6,331	0.10
Nasdaq BX	0.05	4,577	0.19
Nasdaq PHLX	0.02	1,600	0.04
MIAX Pearl	0.01	1,340	0.13
24X National	0.00	100	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

4.34 servings per container

Serving size

2.22M

Calories

9.61M

% Day

% Avg

Off Exchange¹ 7M

77.65%

48.60%

IEX 608K

6.33%

7.78%

NYSE 419K

4.36%

27.61%

Nasdaq GSM 334K

3.48%

5.74%

Cboe EDGX 265K

2.76%

1.50%

NYSE Arca 209K

2.18%

2.90%

Cboe EDGA 112K

1.17%

0.69%

Cboe BZX 89K

0.93%

1.96%

MEMX 46K

0.48%

0.45%

Cboe BYX 40K

0.42%

1.35%

NYSE National 10K

0.11%

0.89%

NYSE American 6K

0.07%

0.10%

Nasdaq BX 5K

0.05%

0.19%

Nasdaq PHLX 2K

0.02%

0.04%

MIAX Pearl 1K

0.01%

0.13%

24X National 100

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 7,460,300, which is 77.65% of today's total volume.
Today's Lit volume is 2,147,321, which is 22.35%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.60%.
The average Lit volume has been 51.40%.

SEM Volume by Exchange

Off Exchange

IEX

NYSE

Nasdaq GSM

Cboe EDGX

NYSE Arca

Cboe EDGA

Cboe BZX

MEMX

Cboe BYX

NYSE National