Biogen Inc. (BIIB) stock Beta

Beta

0.610.000.00%

January 29, 2026

Summary

Current Value: As of today, BIIB beta is 0.61, unchanged on January 29, 2026
Current Value Category: Based on its current beta, BIIB falls into the high volatility category
1-Year High: BIIB beta reached a 1-year high of 0.66 on July 28, 2025
1-Year Low: BIIB beta reached a 1-year low of 0.34 on April 3, 2025

Beta Chart

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
Beta	Jan 29, 26	0.61	0.0%	+7.0%	+3.4%	+7.0%	+13.0%	-33.7%	-30.7%
Price	Jan 30, 26	$177.70	+0.9%	+0.7%	+18.8%	+1.0%	+21.5%	-37.9%	-37.1%
SPX	Jan 30, 26	6,919.13	-0.7%	+0.3%	+1.4%	+1.1%	+14.0%	+72.2%	+86.3%
200-Day SMA	Jan 29, 26	$145.38	+0.2%	+3.1%	+7.6%	+3.0%	-24.7%	-39.1%	-47.4%
50-Day SMA	Jan 29, 26	$175.80	+0.1%	+5.4%	+22.0%	+5.0%	+15.8%	-39.0%	-30.5%
14-Day RSI	Jan 29, 26	52.66	+3.8%	-7.2%	-6.3%	-5.6%	+13.9%	+4.6%	-20.5%
ATR	Jan 29, 26	$4.97	-1.9%	+15.6%	+7.6%	+19.9%	+35.0%	-21.5%	-42.6%
10-Day Volatility	Jan 29, 26	28.02%	-28.1%	+29.1%	+61.0%	+64.2%	+41.0%	+27.4%	-24.2%
1-Month Volatility	Jan 29, 26	37.07%	+2.9%	+61.0%	-11.6%	+72.0%	+38.2%	+58.7%	+0.1%
1-Year Volatility	Jan 29, 26	33.19%	+0.1%	+2.3%	+4.0%	+2.5%	+28.9%	-33.5%	-52.5%

Beta History

Date	Value	Change
Jan 30, 2026	0.61	+7.0%
Dec 31, 2025	0.57	-5.0%
Dec 31, 2024	0.60	-23.1%
Dec 31, 2023	0.78	-14.3%
Dec 31, 2022	0.91	+184.4%
Dec 31, 2021	0.32	-64.0%
Dec 31, 2020	0.89	+32.8%
Dec 31, 2019	0.67	-34.3%
Dec 31, 2018	1.02	-18.4%
Dec 31, 2017	1.25	-2.3%
Dec 31, 2016	1.28	+9.4%
Dec 31, 2015	1.17	-34.3%
Dec 31, 2014	1.78	+28.1%
Dec 31, 2013	1.39	+49.5%
Dec 31, 2012	0.93	+14.8%
Dec 31, 2011	0.81	+9.5%
Dec 31, 2010	0.74	+25.4%

Date	Value	Change
Dec 31, 2009	0.59	-22.4%
Dec 31, 2008	0.76	+18.8%
Dec 31, 2007	0.64	-52.9%
Dec 31, 2006	1.36	-9.9%
Dec 31, 2005	1.51	-4.4%
Dec 31, 2004	1.58	+20.6%
Dec 31, 2003	1.31	0.0%
Dec 31, 2002	1.31	-17.6%
Dec 31, 2001	1.59	+17.8%
Dec 31, 2000	1.35	+3.1%
Dec 31, 1999	1.31	+48.9%
Dec 31, 1998	0.88	+4.8%
Dec 31, 1997	0.84	-59.4%
Dec 31, 1996	2.07	-6.8%
Dec 31, 1995	2.22	+29.8%
Dec 31, 1994	1.71	>+9,900.0%
Dec 31, 1993	0.01	-

FAQ

What is the current beta of BIIB?
As of today, BIIB beta is 0.61
What beta category does BIIB fall into?
Based on its current beta, BIIB falls into the high volatility category
What is BIIB beta 1-year high?
BIIB beta reached a 1-year high of 0.66 on July 28, 2025
What is BIIB beta 1-year low?
BIIB beta reached a 1-year low of 0.34 on April 3, 2025

Data Sources & References

BIIB Official Website www.biogen.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/875045/000087504525000049/0000875045-25-000049-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/875045/000087504525000009/0000875045-25-000009-index.htm
BIIB Profile on Yahoo Finance finance.yahoo.com/quote/BIIB
BIIB Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/biib