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CDIO
Cardio Diagnostics Holdings Inc. Common stock
stock NASDAQ

At Close

Aug 19, 2026 3:59:30 PM EDT

2.03USD+6.283%(+0.12)48,953

1.55Bid 2.36Ask 0.81Spread

Pre-market

Aug 18, 2026 9:18:30 AM EDT

2.05USD+7.330%(+0.14)0

After-hours

Aug 18, 2026 4:26:30 PM EDT

1.97USD+5.348%(+0.10)0

OverviewHistoricalExchange VolumeShortsTrends

CDIO Volume Aug 19, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	64.86	31,549	53.90
Cboe EDGX	11.37	5,533	6.41
Nasdaq GSM	5.61	2,729	9.81
MIAX Pearl	4.11	2,000	3.45
NYSE Arca	3.63	1,764	19.08
IEX	2.22	1,079	1.33
Cboe BYX	2.08	1,013	0.38
Cboe BZX	1.98	963	1.21
MEMX	1.65	805	3.74
Nasdaq BX	1.23	600	0.27
Cboe EDGA	0.62	300	0.13
NYSE	0.22	105	0.05
NYSE National	0.21	102	0.02
NYSE American	0.21	102	0.01
24X National	0.00	0	0.14
LTSE	0.00	0	0.02
CHX	0.00	0	0.02
Nasdaq PHLX	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.

CDIO Nutrition Facts

0.60 servings per container

Serving size

81.51K

Calories

48.64K

% Day

% Avg

Off Exchange¹ 32K

64.86%

53.90%

Cboe EDGX 6K

11.37%

6.41%

Nasdaq GSM 3K

5.61%

9.81%

MIAX Pearl 2K

4.11%

3.45%

NYSE Arca 2K

3.63%

19.08%

IEX 1K

2.22%

1.33%

Cboe BYX 1K

2.08%

0.38%

Cboe BZX 963

1.98%

1.21%

MEMX 805

1.65%

3.74%

Nasdaq BX 600

1.23%

0.27%

Cboe EDGA 300

0.62%

0.13%

NYSE 105

0.22%

0.05%

NYSE National 102

0.21%

0.02%

NYSE American 102

0.21%

0.01%

24X National 0

0.00%

0.14%

LTSE 0

0.00%

0.02%

CHX 0

0.00%

0.02%

Nasdaq PHLX 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

CDIO Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 31,549, which is 64.86% of today's total volume.
Today's Lit volume is 17,095, which is 35.14%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 53.90%.
The average Lit volume has been 46.10%.

CDIO Volume by Exchange

Off Exchange

Cboe EDGX

Nasdaq GSM

MIAX Pearl

NYSE Arca

IEX

Cboe BYX

Cboe BZX

MEMX

Nasdaq BX

Cboe EDGA