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MASI
Masimo Corporation
stock NASDAQ

Market Open

Jun 9, 2026 1:11:29 PM EDT

179.96USD+0.014%(+0.02)426,331

179.96Bid 179.97Ask 0.01Spread

Pre-market

Jun 9, 2026 9:28:30 AM EDT

179.99USD+0.028%(+0.05)3,541

After-hours

Jun 8, 2026 4:53:30 PM EDT

179.94USD-0.011%(-0.02)0

OverviewOptionsHistoricalExchange VolumeShortsMore

MASI Volume Jun 9, 2026 12:55:02 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	43.33	177,522	35.57
Nasdaq GSM	25.26	103,497	36.88
IEX	8.22	33,693	6.81
NYSE Arca	7.44	30,486	9.31
Cboe BZX	3.46	14,168	3.46
Cboe BYX	2.86	11,709	0.60
NYSE National	2.41	9,877	0.43
NYSE	2.22	9,086	1.50
Cboe EDGX	2.03	8,302	2.28
Cboe EDGA	1.51	6,178	0.92
NYSE American	0.39	1,583	0.08
Nasdaq PHLX	0.38	1,566	0.14
MEMX	0.33	1,367	1.30
MIAX Pearl	0.15	634	0.52
Nasdaq BX	0.02	75	0.15
CHX	0.00	0	0.04
24X National	0.00	0	0.03
LTSE	0.00	0	0.00

chartexchange.com

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

MASI Nutrition Facts

0.46 servings per container

Serving size

897.08K

Calories

409.74K

% Day

% Avg

Off Exchange¹ 178K

43.33%

35.57%

Nasdaq GSM 103K

25.26%

36.88%

IEX 34K

8.22%

6.81%

NYSE Arca 30K

7.44%

9.31%

Cboe BZX 14K

3.46%

Cboe BYX 12K

2.86%

0.60%

NYSE National 10K

2.41%

0.43%

NYSE 9K

2.22%

1.50%

Cboe EDGX 8K

2.03%

2.28%

Cboe EDGA 6K

1.51%

0.92%

NYSE American 2K

0.39%

0.08%

Nasdaq PHLX 2K

0.38%

0.14%

MEMX 1K

0.33%

1.30%

MIAX Pearl 634

0.15%

0.52%

Nasdaq BX 75

0.02%

0.15%

CHX 0

0.00%

0.04%

24X National 0

0.00%

0.03%

LTSE 0

0.00%

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

chartexchange.com

MASI Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 177,522, which is 43.33% of today's total volume.
Today's Lit volume is 232,221, which is 56.67%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 35.57%.
The average Lit volume has been 64.43%.

MASI Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

Cboe BYX

NYSE National

NYSE

Cboe EDGX

Cboe EDGA

NYSE American