Dark

BLK
Blackrock, Inc.
stock NYSE

At Close

Aug 28, 2026 3:59:58 PM EDT

1164.19USD-0.289%(-3.38)721,354

0.00Bid 0.00Ask 0.00Spread

Pre-market

Aug 28, 2026 9:14:30 AM EDT

1169.61USD+0.175%(+2.04)201

After-hours

Aug 28, 2026 4:13:30 PM EDT

1164.48USD+0.024%(+0.29)101

OverviewOptionsHistoricalExchange VolumeShortsMore

BLK Volume Aug 28, 2026

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Exchange	Day%	Volume	30D%
Off Exchange¹	41.08	174,274	47.92
NYSE	13.05	55,358	26.39
CHX	12.03	51,041	0.56
Nasdaq GSM	11.73	49,749	7.28
IEX	7.62	32,323	6.46
Cboe BZX	4.92	20,857	4.21
NYSE Arca	3.80	16,102	2.64
Cboe EDGX	1.77	7,495	1.48
Nasdaq PHLX	0.70	2,968	0.16
MEMX	0.65	2,771	0.67
Cboe EDGA	0.58	2,443	0.39
Nasdaq BX	0.49	2,079	0.40
Cboe BYX	0.47	1,995	0.67
NYSE American	0.45	1,918	0.17
NYSE National	0.34	1,453	0.45
MIAX Pearl	0.32	1,355	0.17
Texas Stock Exchange LLC	0.00	3	0.00
24X National	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.

BLK Nutrition Facts

0.67 servings per container

Serving size

628.66K

Calories

424.18K

% Day

% Avg

Off Exchange¹ 174K

41.08%

47.92%

NYSE 55K

13.05%

26.39%

CHX 51K

12.03%

0.56%

Nasdaq GSM 50K

11.73%

7.28%

IEX 32K

7.62%

6.46%

Cboe BZX 21K

4.92%

4.21%

NYSE Arca 16K

3.80%

2.64%

Cboe EDGX 7K

1.77%

1.48%

Nasdaq PHLX 3K

0.70%

0.16%

MEMX 3K

0.65%

0.67%

Cboe EDGA 2K

0.58%

0.39%

Nasdaq BX 2K

0.49%

0.40%

Cboe BYX 2K

0.47%

0.67%

NYSE American 2K

0.45%

0.17%

NYSE National 1K

0.34%

0.45%

MIAX Pearl 1K

0.32%

0.17%

Texas Stock Exchange LLC 3

0.00%

24X National 0

0.00%

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

chartexchange.com

BLK Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 174,274, which is 41.08% of today's total volume.
Today's Lit volume is 249,910, which is 58.92%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.92%.
The average Lit volume has been 52.08%.

BLK Volume by Exchange

Off Exchange

NYSE

CHX

Nasdaq GSM

IEX

Cboe BZX

NYSE Arca

Cboe EDGX

Nasdaq PHLX

MEMX

Cboe EDGA