Dark

CDIO
Cardio Diagnostics Holdings Inc. Common stock
stock NASDAQ

At Close

Mar 20, 2026 3:59:30 PM EDT

2.28USD-7.317%(-0.18)375,179

0.00Bid 0.00Ask 0.00Spread

Pre-market

Mar 20, 2026 9:28:30 AM EDT

2.58USD+4.878%(+0.12)4,416

After-hours

Mar 19, 2026 4:15:30 PM EDT

2.43USD-2.213%(-0.06)0

OverviewHistoricalDark Pool LevelsShortsTrends

CDIO Volume Mar 20, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	58.95	216,299	52.30
Nasdaq GSM	17.31	63,499	9.67
Cboe EDGX	8.23	30,194	8.23
NYSE Arca	6.38	23,391	19.24
MEMX	2.81	10,320	3.76
MIAX Pearl	1.99	7,306	1.75
Cboe BYX	1.00	3,670	0.33
Cboe BZX	0.82	3,021	1.89
IEX	0.75	2,766	0.45
NYSE	0.55	2,006	1.65
NYSE National	0.36	1,332	0.04
Nasdaq BX	0.35	1,300	0.20
Cboe EDGA	0.34	1,248	0.43
Nasdaq PHLX	0.15	563	0.02
NYSE American	0.00	0	0.03
CHX	0.00	0	0.01
24X National	0.00	0	0.00
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.

CDIO Nutrition Facts

0.05 servings per container

Serving size

7.41M

Calories

366.92K

% Day

% Avg

Off Exchange¹ 216K

58.95%

52.30%

Nasdaq GSM 63K

17.31%

9.67%

Cboe EDGX 30K

8.23%

NYSE Arca 23K

6.38%

19.24%

MEMX 10K

2.81%

3.76%

MIAX Pearl 7K

1.99%

1.75%

Cboe BYX 4K

1.00%

0.33%

Cboe BZX 3K

0.82%

1.89%

IEX 3K

0.75%

0.45%

NYSE 2K

0.55%

1.65%

NYSE National 1K

0.36%

0.04%

Nasdaq BX 1K

0.35%

0.20%

Cboe EDGA 1K

0.34%

0.43%

Nasdaq PHLX 563

0.15%

0.02%

NYSE American 0

0.00%

0.03%

CHX 0

0.00%

0.01%

24X National 0

0.00%

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

CDIO Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 216,299, which is 58.95% of today's total volume.
Today's Lit volume is 150,616, which is 41.05%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 52.30%.
The average Lit volume has been 47.70%.

CDIO Volume by Exchange

Off Exchange

Nasdaq GSM

Cboe EDGX

NYSE Arca

MEMX

MIAX Pearl

Cboe BYX

Cboe BZX

IEX

NYSE

NYSE National