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BIIB
Biogen Inc. Common Stock
stock NASDAQ

At Close

May 12, 2025 3:59:58 PM EDT

124.39USD+5.264%(+6.22)2,554,633

0.00Bid 0.00Ask 0.00Spread

Pre-market

May 13, 2025 8:54:30 AM EDT

123.99USD-0.330%(-0.41)100

After-hours

May 12, 2025 4:34:30 PM EDT

124.45USD+0.048%(+0.06)17,641

OverviewOptionsHistoricalDark Pool LevelsShortsMore

BIIB Volume May 13, 2025

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	40.44	1,032,893	36.53
Off Exchange¹	33.34	851,551	44.60
Cboe BZX	6.60	168,701	3.74
NYSE Arca	5.86	149,649	3.89
Cboe EDGX	3.87	98,970	2.30
IEX	2.83	72,172	4.20
NYSE	1.96	50,039	1.18
Nasdaq BX	1.13	28,852	0.51
Cboe EDGA	0.94	23,888	0.45
MEMX	0.93	23,673	0.78
Cboe BYX	0.91	23,287	0.70
Nasdaq PHLX	0.45	11,544	0.23
NYSE National	0.28	7,099	0.26
MIAX Pearl	0.24	6,242	0.29
NYSE American	0.19	4,787	0.12
CHX	0.04	1,082	0.22
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.

BIIB Nutrition Facts

1.43 servings per container

Serving size

1.79M

Calories

2.55M

% Day

% Avg

Nasdaq GSM 1M

40.44%

36.53%

Off Exchange¹ 852K

33.34%

44.60%

Cboe BZX 169K

6.60%

3.74%

NYSE Arca 150K

5.86%

3.89%

Cboe EDGX 99K

3.87%

2.30%

IEX 72K

2.83%

4.20%

NYSE 50K

1.96%

1.18%

Nasdaq BX 29K

1.13%

0.51%

Cboe EDGA 24K

0.94%

0.45%

MEMX 24K

0.93%

0.78%

Cboe BYX 23K

0.91%

0.70%

Nasdaq PHLX 12K

0.45%

0.23%

NYSE National 7K

0.28%

0.26%

MIAX Pearl 6K

0.24%

0.29%

NYSE American 5K

0.19%

0.12%

CHX 1K

0.04%

0.22%

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

BIIB Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 851,551, which is 33.34% of today's total volume.
Today's Lit volume is 1,702,878, which is 66.66%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 44.60%.
The average Lit volume has been 55.40%.

BIIB Volume by Exchange

Nasdaq GSM

Off Exchange

Cboe BZX

NYSE Arca

Cboe EDGX

IEX

NYSE

Nasdaq BX

Cboe EDGA

MEMX

Cboe BYX