Dark

GWH
ESS Tech, Inc.
stock NYSE

At Close

Aug 20, 2026 3:59:55 PM EDT

0.3900USD-42.830%(-0.2936)4,746,647

0.3900Bid 0.4600Ask 0.0600Spread

Pre-market

Aug 20, 2026 9:29:30 AM EDT

0.6800USD-0.802%(-0.0055)582

After-hours

Aug 20, 2026 4:54:30 PM EDT

0.4081USD+4.134%(+0.0162)154,252

OverviewHistoricalExchange VolumeShortsMore

GWH Volume Aug 20, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	53.03	2,428,283	58.12
NYSE	12.99	594,779	9.97
NYSE Arca	10.06	460,652	9.46
MEMX	6.67	305,381	5.89
Cboe EDGX	4.95	226,688	4.34
Nasdaq GSM	4.63	212,091	3.97
IEX	2.11	96,692	1.64
MIAX Pearl	1.96	89,765	1.50
Cboe EDGA	1.90	87,116	2.52
Cboe BZX	1.26	57,920	1.61
Cboe BYX	0.27	12,532	0.65
NYSE National	0.06	2,661	0.08
NYSE American	0.05	2,125	0.05
24X National	0.02	700	0.07
CHX	0.02	700	0.01
Nasdaq BX	0.01	600	0.07
Nasdaq PHLX	0.00	100	0.03
LTSE	0.00	0	0.02

chartexchange.com

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

GWH Nutrition Facts

6.61 servings per container

Serving size

692.29K

Calories

4.58M

% Day

% Avg

Off Exchange¹ 2M

53.03%

58.12%

NYSE 595K

12.99%

9.97%

NYSE Arca 461K

10.06%

9.46%

MEMX 305K

6.67%

5.89%

Cboe EDGX 227K

4.95%

4.34%

Nasdaq GSM 212K

4.63%

3.97%

IEX 97K

2.11%

1.64%

MIAX Pearl 90K

1.96%

1.50%

Cboe EDGA 87K

1.90%

2.52%

Cboe BZX 58K

1.26%

1.61%

Cboe BYX 13K

0.27%

0.65%

NYSE National 3K

0.06%

0.08%

NYSE American 2K

0.05%

24X National 700

0.02%

0.07%

CHX 700

0.02%

0.01%

Nasdaq BX 600

0.01%

0.07%

Nasdaq PHLX 100

0.00%

0.03%

LTSE 0

0.00%

0.02%

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

chartexchange.com

GWH Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 2,428,283, which is 53.03% of today's total volume.
Today's Lit volume is 2,150,502, which is 46.97%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 58.12%.
The average Lit volume has been 41.88%.

GWH Volume by Exchange

Off Exchange

NYSE

NYSE Arca

MEMX

Cboe EDGX

Nasdaq GSM

IEX

MIAX Pearl

Cboe EDGA

Cboe BZX

Cboe BYX