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IRTC
iRhythm Holdings, Inc. Common Stock
stock NASDAQ

At Close

May 1, 2026 3:59:56 PM EDT

120.93USD-6.372%(-8.23)1,336,115

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-129.16)0

After-hours

May 1, 2026 4:00:30 PM EDT

120.80USD-0.108%(-0.13)7,078

OverviewOptionsHistoricalExchange VolumeShortsMore

IRTC Volume May 1, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	39.53	528,177	43.02
Nasdaq GSM	27.21	363,580	32.04
IEX	9.30	124,297	7.96
NYSE Arca	7.85	104,889	4.82
Cboe BZX	6.65	88,815	4.27
NYSE	2.69	35,901	1.46
Cboe EDGX	2.25	30,102	2.26
MEMX	1.23	16,392	0.68
Cboe BYX	1.09	14,559	1.71
Nasdaq PHLX	0.59	7,936	0.21
Nasdaq BX	0.52	7,008	0.50
MIAX Pearl	0.48	6,430	0.20
Cboe EDGA	0.28	3,734	0.43
LTSE	0.11	1,495	0.05
NYSE American	0.11	1,435	0.08
NYSE National	0.08	1,088	0.26
CHX	0.02	233	0.05
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.

IRTC Nutrition Facts

3.00 servings per container

Serving size

445.33K

Calories

1.34M

% Day

% Avg

Off Exchange¹ 528K

39.53%

43.02%

Nasdaq GSM 364K

27.21%

32.04%

IEX 124K

9.30%

7.96%

NYSE Arca 105K

7.85%

4.82%

Cboe BZX 89K

6.65%

4.27%

NYSE 36K

2.69%

1.46%

Cboe EDGX 30K

2.25%

2.26%

MEMX 16K

1.23%

0.68%

Cboe BYX 15K

1.09%

1.71%

Nasdaq PHLX 8K

0.59%

0.21%

Nasdaq BX 7K

0.52%

0.50%

MIAX Pearl 6K

0.48%

0.20%

Cboe EDGA 4K

0.28%

0.43%

LTSE 1K

0.11%

0.05%

NYSE American 1K

0.11%

0.08%

NYSE National 1K

0.08%

0.26%

CHX 233

0.02%

0.05%

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

IRTC Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 528,177, which is 39.53% of today's total volume.
Today's Lit volume is 807,894, which is 60.47%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 43.02%.
The average Lit volume has been 56.98%.

IRTC Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

MEMX

Cboe BYX

Nasdaq PHLX

Nasdaq BX