Biogen Idec (NQ:BIIB)
Price and Volume
Detailed Quote| Volume | 546 |
| Open | 249.65 |
| Bid (Size) | 254.00 (200) |
| Ask (Size) | 260.00 (100) |
| Prev. Close | 249.65 |
| Today's Range | 249.65 - 249.65 |
| 52wk Range | 138.00 - 258.78 |
| Shares Outstanding | 146,800,000 |
| Dividend Yield | N/A |
Top News
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Performance
52-Week Range
3.5% below 52-week high
249.65
138.0052W Low
258.7852W High
1 Week
3.5% below 1-week high
243.031W Low
258.781W High
Biogen Idec (BIIB) traded between $138.00 and $258.78 over the past 52 weeks and last traded at $249.65, 3.5% below its 52-week high. Over the past week it ranged between $243.03 and $258.78.
Past 12 Months
1W
-$1.04
1M
+$22.58
3M
+$41.72
6M
+$60.37
YTD
+$71.83
1Y
+$101.79
BIIB was +68.8% over the past year, +31.9% over six months, +40.4% year to date, -0.4% in the last week.
12 Months vs Market
BIIB
+68.8%
DIA
+9.7%
SPY
+11.9%
QQQ
+12.5%
IWM
+15.1%
Over the past 12 months BIIB returned +68.8% versus DIA (Dow) +9.7%, SPY (S&P 500) +11.9%, QQQ (Nasdaq 100) +12.5% and IWM (Russell 2000) +15.1%.
Volume & Liquidity
0.00× 3-mo avg
Today 546
3-mo avg 1.0M
1W
1.4M
1M
1.3M
3M
1.0M
6M
1.1M
YTD
1.2M
1Y
1.4M
BIIB most recently traded 546 shares against a 3-month average daily volume of 1.0M.
More News
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October 28, 2026
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October 28, 2026
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October 26, 2026
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October 20, 2026
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October 12, 2026
Biogen (BIIB) Stock Is Up, What You Need To Know
October 12, 2026
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October 12, 2026
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October 07, 2026
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October 01, 2026
Biogen (NASDAQ:BIIB) Q2 Earnings: Leading The Therapeutics Pack
September 24, 2026
Reflecting On Therapeutics Stocks’ Q2 Earnings: AbbVie (NYSE:ABBV)
September 21, 2026
Biogen Eyes Wave of Phase III Readouts as It Expands Beyond Neuroscience ↗
September 15, 2026
Biogen Sees Pivotal Pipeline Moment as It Expands Beyond Neurology ↗
September 12, 2026
Thursday's session: top gainers and losers in the S&P500 index ↗
September 10, 2026
Frequently Asked Questions
Is Biogen Idec publicly traded?
Yes, Biogen Idec is publicly traded.
What exchange does Biogen Idec trade on?
Biogen Idec trades on the Nasdaq Stock Market
What is the ticker symbol for Biogen Idec?
The ticker symbol for Biogen Idec is BIIB on the Nasdaq Stock Market
What is the current price of Biogen Idec?
The current price of Biogen Idec is 249.65
When was Biogen Idec last traded?
The last trade of Biogen Idec was at 10/29/26 04:00 PM ET
What is the market capitalization of Biogen Idec?
The market capitalization of Biogen Idec is 36.65B
How many shares of Biogen Idec are outstanding?
Biogen Idec has 37B shares outstanding.