Market Cap:
$22.32B-$269.77M(-1.19%)Summary
- As of today (October 8, 2025), BIIB market cap is $22.32 billion, with a fall of -$269.77 million (-1.19%) during the most recent trading session on October 7, 2025.
- Over the past year, BIIB market cap has dropped by -$4.24 billion (-15.98%).
- BIIB market cap is now -80.02% below its all-time high of $111.67 billion.
Performance
BIIB Market Cap Chart
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Highlights
Range
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Market Cap Formula
Market Cap = Price ✕ Shares Outstanding
BIIB Market Cap Trends
| PeriodPeriod | Market CapMarket Cap | PricePrice | Shares OutstandingShares Outstanding | Enterprise ValueEnterprise Value |
|---|---|---|---|---|
| 1D1 Day | -1.2% | -1.2% | +0.0% | -1.0% |
| 1M1 Month | +7.7% | +7.7% | - | +6.5% |
| 3M3 Months | +13.2% | +13.2% | - | +11.1% |
| 6M6 Months | +33.6% | +33.5% | - | +26.1% |
| YTDYTD | +0.1% | -0.5% | - | -1.8% |
| 1Y1 Year | -16.0% | -16.5% | +0.6% | -17.0% |
| 5Y5 Years | -49.5% | -47.0% | -4.7% | -46.0% |
BIIB Market Cap Highs & Lows
| PeriodPeriod | HighHigh | Current vs Highvs High | LowLow | Current vs Lowvs Low | |
|---|---|---|---|---|---|
| 1M | 1-Month | $23B | -4.8% | $20B | +12.2% |
| 3M | 3-Month | $23B | -4.8% | $18B | +24.1% |
| 6M | 6-Month | $23B | -4.8% | $17B | +34.4% |
| 1Y | 1-Year | $28B | -20.0% | $17B | +34.4% |
| 3Y | 3-Year | $46B | -51.5% | $17B | +34.4% |
| 5Y | 5-Year | $62B | -64.3% | $17B | +34.4% |
| All-Time | All-Time | $112B | -80.0% | $348M | +6315.4% |
BIIB Market Cap History
| Date | Value |
|---|---|
| 2025 | $22B(+0.1%) |
| 2024 | $22B(-40.6%) |
| 2023 | $37B(-6.0%) |
| 2022 | $40B(+13.1%) |
| 2021 | $35B(-5.5%) |
| 2020 | $37B(-27.8%) |
| 2019 | $52B(-12.9%) |
| 2018 | $59B(-11.9%) |
| 2017 | $67B(+10.0%) |
| 2016 | $61B(-8.5%) |
| 2015 | $67B(-15.9%) |
| 2014 | $80B(+20.5%) |
| 2013 | $66B(+90.8%) |
| 2012 | $35B(+30.0%) |
| Date | Value |
|---|---|
| 2011 | $27B(+65.2%) |
| 2010 | $16B(+9.7%) |
| 2009 | $15B(+7.2%) |
| 2008 | $14B(-18.5%) |
| 2007 | $17B(+1.2%) |
| 2006 | $17B(+8.1%) |
| 2005 | $15B(-32.0%) |
| 2004 | $23B(+86.6%) |
| 2003 | $12B(+136.8%) |
| 2002 | $5B(-51.4%) |
| 2001 | $11B(+13.5%) |
| 2000 | $9B(+121.4%) |
| 1999 | $4B(+343.3%) |
| 1998 | $946M |
FAQ
- What is Biogen Inc. market cap?
- What is the all-time high market cap for Biogen Inc.?
- What is BIIB market cap year-to-date change?
- What is Biogen Inc. market cap year-on-year change?
What is Biogen Inc. market cap?
The current market cap of BIIB is $22.32B
What is the all-time high market cap for Biogen Inc.?
Biogen Inc. all-time high market cap is $111.67B
What is BIIB market cap year-to-date change?
Biogen Inc. market cap has changed by +$32.81M (+0.15%) since the beginning of the year
What is Biogen Inc. market cap year-on-year change?
Over the past year, BIIB market cap has changed by -$4.24B (-15.98%)