BIIB: Biogen Inc.

As of Friday, October 9th, 2026

$ 225.71

+7.28 +3.33%

Open: 220.62
High: 227.20
Low: 219.23
Volume: 814,919
Previous Close on Thursday, October 8th, 2026

$ 218.43

-3.72 -1.67%

Open: 220.15
High: 223.09
Low: 215.73
Volume: 1,329,297

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-10-09 220.62 227.20 219.23 225.71 814,919 +7.28 +3.33
2026-10-08 220.15 223.09 215.73 218.43 1,329,297 -3.72 -1.67
2026-10-07 222.93 228.00 221.40 222.15 1,298,088 -0.74 -0.33
2026-10-06 224.53 225.97 218.00 222.89 974,349 -0.70 -0.31
2026-10-05 219.90 223.85 218.22 223.59 936,857 +3.71 +1.69
2026-10-02 222.98 224.08 219.81 219.88 774,017 -2.94 -1.32
2026-10-01 225.50 228.31 222.50 222.82 1,755,337 -3.06 -1.35
2026-09-30 227.23 229.36 225.51 225.88 1,546,919 -1.19 -0.52
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Metrics and Technicals

Period High Low Chg %Chg Max Drawdown SMA
Peak Trough %Loss
Period High Low Chg %Chg MDD SMA
5D 228.00
On 2026-10-07		 215.73
On 2026-10-08		 5.83 2.65 228.00
On 2026-10-07		 215.73
On 2026-10-08		 -5.38 222.55
10D 230.49
On 2026-09-28		 215.73
On 2026-10-08		 -1.89 -0.83 230.49
On 2026-09-28		 215.73
On 2026-10-08		 -6.40 223.71
20D 230.49
On 2026-09-28		 213.54
On 2026-09-15		 8.56 3.94 230.49
On 2026-09-28		 215.73
On 2026-10-08		 -6.40 222.36
WTD 228.00
On 2026-10-07		 215.73
On 2026-10-08		 5.83 2.65 228.00
On 2026-10-07		 215.73
On 2026-10-08		 -5.38 222.55
MTD 228.31
On 2026-10-01		 215.73
On 2026-10-08		 -0.17 -0.08 228.31
On 2026-10-01		 215.73
On 2026-10-08		 -5.51 222.21
As of Friday, October 9th, 2026
 
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Recent
Ticker Last Chg %Chg Volume
BIIB

Biogen Inc.

225.71 +7.28 +3.33 814,919