Dark

GH
Guardant Health, Inc. Common Stock
stock NASDAQ

At Close

Oct 17, 2025 3:59:57 PM EDT

65.43USD-2.980%(-2.01)1,611,875

65.42Bid 65.43Ask 0.01Spread

Pre-market

Oct 17, 2025 9:11:30 AM EDT

66.60USD-1.246%(-0.84)300

After-hours

Oct 17, 2025 4:45:30 PM EDT

65.74USD+0.474%(+0.31)3,400

OverviewOptionsHistoricalDark Pool LevelsShortsMore

GH Volume Oct 17, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	47.02	792,464	45.14
Nasdaq GSM	33.10	557,958	33.94
NYSE Arca	5.54	93,381	5.26
IEX	3.58	60,277	4.39
Cboe EDGX	3.01	50,734	2.73
Cboe BZX	2.79	46,962	3.65
MEMX	1.79	30,154	1.28
NYSE	0.99	16,648	1.31
Cboe EDGA	0.74	12,526	0.49
Cboe BYX	0.52	8,799	0.53
MIAX Pearl	0.27	4,600	0.31
Nasdaq BX	0.17	2,940	0.38
NYSE National	0.15	2,463	0.21
NYSE American	0.13	2,130	0.09
Nasdaq PHLX	0.12	2,092	0.17
CHX	0.08	1,355	0.05
LTSE	0.00	0	0.09

chartexchange.com

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

GH Nutrition Facts

0.75 servings per container

Serving size

2.26M

Calories

1.69M

% Day

% Avg

Off Exchange¹ 792K

47.02%

45.14%

Nasdaq GSM 558K

33.10%

33.94%

NYSE Arca 93K

5.54%

5.26%

IEX 60K

3.58%

4.39%

Cboe EDGX 51K

3.01%

2.73%

Cboe BZX 47K

2.79%

3.65%

MEMX 30K

1.79%

1.28%

NYSE 17K

0.99%

1.31%

Cboe EDGA 13K

0.74%

0.49%

Cboe BYX 9K

0.52%

0.53%

MIAX Pearl 5K

0.27%

0.31%

Nasdaq BX 3K

0.17%

0.38%

NYSE National 2K

0.15%

0.21%

NYSE American 2K

0.13%

0.09%

Nasdaq PHLX 2K

0.12%

0.17%

CHX 1K

0.08%

0.05%

LTSE 0

0.00%

0.09%

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

chartexchange.com

GH Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 792,464, which is 47.02% of today's total volume.
Today's Lit volume is 893,019, which is 52.98%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 45.14%.
The average Lit volume has been 54.86%.

GH Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

IEX

Cboe EDGX

Cboe BZX

MEMX

NYSE

Cboe EDGA

Cboe BYX

MIAX Pearl