Dark

WTM
White Mountains Insurance Group Ltd.
stock NYSE

At Close

Dec 5, 2025 3:59:51 PM EST

2036.02USD-0.087%(-1.77)27,360

0.00Bid 0.00Ask 0.00Spread

Pre-market

Dec 3, 2025 8:45:30 AM EST

2028.90USD-0.436%(-8.89)0

After-hours

Dec 5, 2025 4:00:30 PM EST

2034.79USD-0.060%(-1.23)23

OverviewHistoricalDark Pool PrintsShortsMore

WTM Volume Dec 5, 2025

[NF]

Exchange	Day%	Volume	30D%
NYSE	27.28	7,464	24.41
Off Exchange¹	25.25	6,909	41.96
NYSE Arca	15.99	4,374	6.57
Nasdaq GSM	9.35	2,558	10.26
Cboe BZX	8.68	2,376	3.57
IEX	5.50	1,504	3.84
Cboe EDGX	2.81	768	4.58
MEMX	2.45	671	2.10
Cboe BYX	0.64	175	0.98
Nasdaq PHLX	0.56	153	0.14
MIAX Pearl	0.54	149	0.39
Nasdaq BX	0.42	115	0.64
NYSE National	0.30	81	0.19
Cboe EDGA	0.21	57	0.19
CHX	0.02	5	0.06
NYSE American	0.00	0	0.11
LTSE	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.

WTM Nutrition Facts

1.26 servings per container

Serving size

21.66K

Calories

27.36K

% Day

% Avg

NYSE 7K

27.28%

24.41%

Off Exchange¹ 7K

25.25%

41.96%

NYSE Arca 4K

15.99%

6.57%

Nasdaq GSM 3K

9.35%

10.26%

Cboe BZX 2K

8.68%

3.57%

IEX 2K

5.50%

3.84%

Cboe EDGX 768

2.81%

4.58%

MEMX 671

2.45%

2.10%

Cboe BYX 175

0.64%

0.98%

Nasdaq PHLX 153

0.56%

0.14%

MIAX Pearl 149

0.54%

0.39%

Nasdaq BX 115

0.42%

0.64%

NYSE National 81

0.30%

0.19%

Cboe EDGA 57

0.21%

0.19%

CHX 5

0.02%

0.06%

NYSE American 0

0.00%

0.11%

LTSE 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

WTM Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 6,909, which is 25.25% of today's total volume.
Today's Lit volume is 20,450, which is 74.75%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 41.96%.
The average Lit volume has been 58.04%.

WTM Volume by Exchange

NYSE

Off Exchange

NYSE Arca

Nasdaq GSM

Cboe BZX

IEX

Cboe EDGX

MEMX

Cboe BYX

Nasdaq PHLX

MIAX Pearl