Dark

GLDD
Great Lakes Dredge & Dock Corporation
stock NASDAQ

At Close

Dec 12, 2025 3:59:56 PM EST

13.78USD-0.684%(-0.10)716,558

0.00Bid 0.00Ask 0.00Spread

Pre-market

Dec 11, 2025 8:05:30 AM EST

13.65USD-1.657%(-0.23)0

After-hours

Dec 12, 2025 4:00:30 PM EST

13.78USD-0.036%(0.00)20,409

OverviewOptionsHistoricalExchange VolumeShortsMore

GLDD Volume Dec 12, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	49.40	354,002	36.88
Nasdaq GSM	38.77	277,778	41.24
IEX	3.99	28,595	5.18
NYSE Arca	2.60	18,652	5.63
Cboe EDGX	1.86	13,352	3.17
Cboe BZX	1.70	12,153	2.87
NYSE	0.88	6,331	1.76
MEMX	0.34	2,451	1.28
Cboe EDGA	0.17	1,186	0.32
Nasdaq BX	0.09	637	0.37
Cboe BYX	0.08	552	0.56
MIAX Pearl	0.05	323	0.30
NYSE National	0.04	256	0.22
Nasdaq PHLX	0.02	162	0.16
CHX	0.02	128	0.01
NYSE American	0.00	0	0.06
LTSE	0.00	0	0.00

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

GLDD Nutrition Facts

1.66 servings per container

Serving size

432.30K

Calories

716.56K

% Day

% Avg

Off Exchange¹ 354K

49.40%

36.88%

Nasdaq GSM 278K

38.77%

41.24%

IEX 29K

3.99%

5.18%

NYSE Arca 19K

2.60%

5.63%

Cboe EDGX 13K

1.86%

3.17%

Cboe BZX 12K

1.70%

2.87%

NYSE 6K

0.88%

1.76%

MEMX 2K

0.34%

1.28%

Cboe EDGA 1K

0.17%

0.32%

Nasdaq BX 637

0.09%

0.37%

Cboe BYX 552

0.08%

0.56%

MIAX Pearl 323

0.05%

0.30%

NYSE National 256

0.04%

0.22%

Nasdaq PHLX 162

0.02%

0.16%

CHX 128

0.02%

0.01%

NYSE American 0

0.00%

0.06%

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

GLDD Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 354,002, which is 49.40% of today's total volume.
Today's Lit volume is 362,556, which is 50.60%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 36.88%.
The average Lit volume has been 63.12%.

GLDD Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe EDGX

Cboe BZX

NYSE

MEMX

Cboe EDGA

Nasdaq BX

Cboe BYX