BIIB: Biogen Inc.

As of Thursday, September 24th, 2026

$ 226.36

-1.17 -0.51%

Open: 226.80
High: 228.72
Low: 224.31
Volume: 1,034,496
Previous Close on Wednesday, September 23rd, 2026

$ 227.53

+2.17 +0.96%

Open: 226.94
High: 229.19
Low: 222.36
Volume: 1,386,089

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-09-24 226.80 228.72 224.31 226.36 1,034,496 -1.17 -0.51
2026-09-23 226.94 229.19 222.36 227.53 1,386,089 +2.17 +0.96
2026-09-22 219.22 226.43 219.00 225.36 1,034,900 +6.29 +2.87
2026-09-21 216.14 221.92 214.59 219.07 927,043 +3.57 +1.66
2026-09-18 219.05 220.17 215.26 215.50 2,634,622 -3.55 -1.62
2026-09-17 217.68 219.41 215.33 219.05 830,084 +3.04 +1.41
2026-09-16 216.41 218.29 214.81 216.01 603,856 -0.16 -0.07
2026-09-15 216.71 216.71 213.54 216.17 755,785 -1.19 -0.55
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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 229.19
On 2026-09-23		 214.59
On 2026-09-21		 7.31 3.34 229.19
On 2026-09-23		 224.31
On 2026-09-24		 -2.13 222.76
10D 229.19
On 2026-09-23		 213.54
On 2026-09-15		 10.93 5.07 222.25
On 2026-09-14		 213.54
On 2026-09-15		 -3.92 219.96
20D 229.19
On 2026-09-23		 208.93
On 2026-09-10		 5.29 2.39 225.80
On 2026-09-03		 208.93
On 2026-09-10		 -7.47 218.95
WTD 229.19
On 2026-09-23		 214.59
On 2026-09-21		 10.86 5.04 229.19
On 2026-09-23		 224.31
On 2026-09-24		 -2.13 224.58
MTD 229.19
On 2026-09-23		 208.93
On 2026-09-10		 9.71 4.48 225.80
On 2026-09-03		 208.93
On 2026-09-10		 -7.47 218.96
As of Thursday, September 24th, 2026
 
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BIIB

Biogen Inc.

226.36 -1.17 -0.51 1,034,496