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Biogen Inc. (BIIB) Market Cap

Market Cap:

$21.68B-$186.20M(-0.85%)
October 29, 2025

Summary

  • As of today, BIIB market cap is $21.68 billion, with a fall of -$186.20 million (-0.85%) during the most recent trading session on October 29, 2025.
  • Over the past year, BIIB market cap has dropped by -$5.06 billion (-18.91%).
  • BIIB market cap is now -80.59% below its all-time high of $111.67 billion.

Performance

BIIB Market Cap Chart

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Market Cap Formula

Market Cap = Price ✕ Shares Outstanding

BIIB Market Cap Trends

PeriodPeriodMarket CapMarket CapPricePriceShares OutstandingShares OutstandingEnterprise ValueEnterprise Value
1D1 Day-0.8%-0.8%+0.0%-0.7%
1M1 Month+6.7%+6.7%-+5.7%
3M3 Months+15.6%+15.6%-+13.0%
6M6 Months+23.1%+23.0%-+17.9%
YTDYTD-2.7%-3.3%--4.2%
1Y1 Year-18.9%-19.4%+0.6%-19.5%
5Y5 Years-42.6%-39.8%-4.7%-39.3%

BIIB Market Cap Highs & Lows

PeriodPeriodHighHighCurrent vs Highvs HighLowLowCurrent vs Lowvs Low
1M1-Month$23B-7.5%$20B+6.7%
3M3-Month$23B-7.5%$19B+16.8%
6M6-Month$23B-7.5%$17B+26.6%
1Y1-Year$27B-18.9%$17B+30.5%
3Y3-Year$46B-52.9%$17B+30.5%
5Y5-Year$62B-65.3%$17B+30.5%
All-TimeAll-Time$112B-80.6%$348M+6132.0%

BIIB Market Cap History

DateValue
2025
$22B(-2.7%)
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%)
DateValue
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 $21.68B

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 -$604.96M (-2.71%) 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 -$5.06B (-18.91%)
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