What is the current 200-day SMA of BIIB?

As of today, BIIB 200-day SMA is $187.36

How does BIIB 200-day SMA compare to its current price?

BIIB 200-day SMA is -15.43% below its current market price

How far is BIIB 200-day SMA from its all-time high?

BIIB 200-day SMA is currently -50.18% below its historical high of $376.10 set on August 6, 2015

What is 1-year change in BIIB 200-day SMA?

BIIB 200-day SMA is up +35.15% year-over-year

What is the current 50-day SMA of BIIB?

As of today, BIIB 50-day SMA is $204.52

How does BIIB 50-day SMA compare to its current price?

BIIB 50-day SMA is -7.69% below its current market price

How far is BIIB 50-day SMA from its all-time high?

BIIB 50-day SMA is currently -51.29% below its historical high of $419.84 set on April 24, 2015

What is 1-year change in BIIB 50-day SMA?

BIIB 50-day SMA is up +56.66% year-over-year

What is the current 20-day SMA of BIIB?

As of today, BIIB 20-day SMA is $207.17

How does BIIB 20-day SMA compare to its current price?

BIIB 20-day SMA is -6.49% below its current market price

How far is BIIB 20-day SMA from its all-time high?

BIIB 20-day SMA is currently -51.89% below its historical high of $430.62 set on April 16, 2015

What is 1-year change in BIIB 20-day SMA?

BIIB 20-day SMA is up +56.94% year-over-year

What is the current 200-day EMA of BIIB?

As of today, BIIB 200-day EMA is $187.23

How does BIIB 200-day EMA compare to its current price?

BIIB 200-day EMA is -15.49% below its current market price

How far is BIIB 200-day EMA from its all-time high?

BIIB 200-day EMA is currently -50.63% below its historical high of $379.26 set on July 23, 2015

What is 1-year change in BIIB 200-day EMA?

BIIB 200-day EMA is up +29.60% year-over-year

What is the current 50-day EMA of BIIB?

As of today, BIIB 50-day EMA is $203.98

How does BIIB 50-day EMA compare to its current price?

BIIB 50-day EMA is -7.94% below its current market price

How far is BIIB 50-day EMA from its all-time high?

BIIB 50-day EMA is currently -50.76% below its historical high of $414.29 set on April 23, 2015

What is 1-year change in BIIB 50-day EMA?

BIIB 50-day EMA is up +55.64% year-over-year

What is the current 20-day EMA of BIIB?

As of today, BIIB 20-day EMA is $208.34

How does BIIB 20-day EMA compare to its current price?

BIIB 20-day EMA is -5.97% below its current market price

How far is BIIB 20-day EMA from its all-time high?

BIIB 20-day EMA is currently -51.33% below its historical high of $428.03 set on March 30, 2015

What is 1-year change in BIIB 20-day EMA?

BIIB 20-day EMA is up +56.58% year-over-year

Biogen Inc. (BIIB) Stock Moving Average History & Chart

200-Day SMA

$187.36$0.36+0.19%

August 19, 2026

Summary

Current Value: As of today, BIIB 200-day SMA is $187.36, up +0.19% on August 19, 2026
Vs Current Price: BIIB 200-day SMA is -15.43% below its current market price
1-Year High: BIIB 200-day SMA reached a 1-year high of $187.36 on August 19, 2026
1-Year Low: BIIB 200-day SMA reached a 1-year low of $135.12 on October 29, 2025

200-Day SMA Chart

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%

200-Day SMA Highs

BIIB 200-Day SMA Highs Comparison
Period	High	Date	Current
1M	$187.36	Aug 19, 26	at high
3M	$187.36	Aug 19, 26	at high
6M	$187.36	Aug 19, 26	at high
1Y	$187.36	Aug 19, 26	at high
3Y	$285.43	Aug 18, 23	-34.4%
5Y	$300.03	Nov 5, 21	-37.5%
All	$376.10	Aug 6, 15	-50.2%

200-Day SMA Lows

BIIB 200-Day SMA Lows Comparison
Period	Low	Date	Current
1M	$181.04	Jul 20, 26	+3.5%
3M	$168.61	May 20, 26	+11.1%
6M	$150.68	Feb 20, 26	+24.4%
1Y	$135.12	Oct 29, 25	+38.7%
3Y	$135.12	Oct 29, 25	+38.7%
5Y	$135.12	Oct 29, 25	+38.7%
All	$0.46	Mar 2, 95	>+9999.0%

200-Day SMA History

Date	Value	Change
Aug 20, 2026	$187.36	+32.7%
Dec 31, 2025	$141.19	-29.1%
Dec 31, 2024	$199.16	-26.3%
Dec 31, 2023	$270.09	+16.5%
Dec 31, 2022	$231.87	-21.4%
Dec 31, 2021	$294.86	+5.3%
Dec 31, 2020	$280.00	+13.3%
Dec 31, 2019	$247.24	-20.9%
Dec 31, 2018	$312.62	+6.8%
Dec 31, 2017	$292.70	+3.1%
Dec 31, 2016	$283.97	-17.4%
Dec 31, 2015	$343.90	+8.1%
Dec 31, 2014	$318.12	+38.3%
Dec 31, 2013	$229.95	+62.9%
Dec 31, 2012	$141.17	+43.7%
Dec 31, 2011	$98.27	+73.5%
Dec 31, 2010	$56.63	+15.7%
Dec 31, 2009	$48.93	-9.9%

Date	Value	Change
Dec 31, 2008	$54.33	-7.7%
Dec 31, 2007	$58.84	+28.2%
Dec 31, 2006	$45.92	+16.7%
Dec 31, 2005	$39.33	-34.1%
Dec 31, 2004	$59.66	+69.4%
Dec 31, 2003	$35.21	-19.1%
Dec 31, 2002	$43.53	-23.6%
Dec 31, 2001	$57.01	+26.7%
Dec 31, 2000	$44.99	+186.2%
Dec 31, 1999	$15.72	+208.7%
Dec 31, 1998	$5.09	+3.7%
Dec 31, 1997	$4.91	+28.3%
Dec 31, 1996	$3.83	+193.9%
Dec 31, 1995	$1.30	+163.9%
Dec 31, 1994	$0.49	-45.2%
Dec 31, 1993	$0.90	-35.5%
Dec 31, 1992	$1.40	-47.4%
Dec 31, 1991	$2.66	-

FAQ

What is the current 200-day SMA of BIIB?: As of today, BIIB 200-day SMA is $187.36
How does BIIB 200-day SMA compare to its current price?: BIIB 200-day SMA is -15.43% below its current market price
How far is BIIB 200-day SMA from its all-time high?: BIIB 200-day SMA is currently -50.18% below its historical high of $376.10 set on August 6, 2015
What is 1-year change in BIIB 200-day SMA?: BIIB 200-day SMA is up +35.15% year-over-year

50-Day SMA

$204.52$0.58+0.28%

August 19, 2026

Summary

Current Value: As of today, BIIB 50-day SMA is $204.52, up +0.28% on August 19, 2026
Vs Current Price: BIIB 50-day SMA is -7.69% below its current market price
1-Year High: BIIB 50-day SMA reached a 1-year high of $204.52 on August 19, 2026
1-Year Low: BIIB 50-day SMA reached a 1-year low of $130.55 on August 20, 2025

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%
3-Month Volatility	Aug 19, 26	39.25%	+2.5%	-6.5%	+15.1%	+52.0%	+26.9%	+103.5%	-52.6%
1-Year Volatility	Aug 19, 26	35.46%	+0.7%	-1.0%	+6.3%	+9.5%	+21.6%	-24.4%	-50.1%

50-Day SMA Highs

BIIB 50-Day SMA Highs Comparison
Period	High	Date	Current
1M	$204.52	Aug 19, 26	at high
3M	$204.52	Aug 19, 26	at high
6M	$204.52	Aug 19, 26	at high
1Y	$204.52	Aug 19, 26	at high
3Y	$280.04	Aug 18, 23	-27.0%
5Y	$348.52	Aug 20, 21	-41.3%
All	$419.84	Apr 24, 15	-51.3%

50-Day SMA Lows

BIIB 50-Day SMA Lows Comparison
Period	Low	Date	Current
1M	$199.00	Jul 20, 26	+2.8%
3M	$185.54	May 21, 26	+10.2%
6M	$179.75	Feb 20, 26	+13.8%
1Y	$130.55	Aug 20, 25	+56.7%
3Y	$123.88	Jun 13, 25	+65.1%
5Y	$123.88	Jun 13, 25	+65.1%
All	$0.40	Jan 23, 95	>+9999.0%

50-Day SMA History

Date	Value	Change
Aug 20, 2026	$204.52	+22.2%
Dec 31, 2025	$167.35	+2.5%
Dec 31, 2024	$163.29	-32.4%
Dec 31, 2023	$241.45	-16.0%
Dec 31, 2022	$287.57	+14.7%
Dec 31, 2021	$250.62	-0.7%
Dec 31, 2020	$252.50	-13.6%
Dec 31, 2019	$292.40	-6.8%
Dec 31, 2018	$313.62	-1.5%
Dec 31, 2017	$318.35	+7.8%
Dec 31, 2016	$295.38	+1.4%
Dec 31, 2015	$291.30	-10.7%
Dec 31, 2014	$326.09	+23.3%
Dec 31, 2013	$264.50	+80.8%
Dec 31, 2012	$146.31	+31.1%
Dec 31, 2011	$111.64	+72.0%
Dec 31, 2010	$64.89	+36.7%
Dec 31, 2009	$47.46	+6.9%

Date	Value	Change
Dec 31, 2008	$44.38	-36.1%
Dec 31, 2007	$69.44	+41.4%
Dec 31, 2006	$49.12	+13.7%
Dec 31, 2005	$43.19	-29.6%
Dec 31, 2004	$61.31	+70.8%
Dec 31, 2003	$35.90	-6.5%
Dec 31, 2002	$38.40	-41.9%
Dec 31, 2001	$66.03	+2.6%
Dec 31, 2000	$64.35	+192.4%
Dec 31, 1999	$22.01	+275.6%
Dec 31, 1998	$5.86	-2.9%
Dec 31, 1997	$6.04	+66.2%
Dec 31, 1996	$3.63	+56.5%
Dec 31, 1995	$2.32	+468.6%
Dec 31, 1994	$0.41	-59.0%
Dec 31, 1993	$0.99	-40.8%
Dec 31, 1992	$1.68	-32.4%
Dec 31, 1991	$2.49	-

FAQ

What is the current 50-day SMA of BIIB?: As of today, BIIB 50-day SMA is $204.52
How does BIIB 50-day SMA compare to its current price?: BIIB 50-day SMA is -7.69% below its current market price
How far is BIIB 50-day SMA from its all-time high?: BIIB 50-day SMA is currently -51.29% below its historical high of $419.84 set on April 24, 2015
What is 1-year change in BIIB 50-day SMA?: BIIB 50-day SMA is up +56.66% year-over-year

20-Day SMA

$207.17$1.19+0.58%

August 19, 2026

Summary

Current Value: As of today, BIIB 20-day SMA is $207.17, up +0.58% on August 19, 2026
Vs Current Price: BIIB 20-day SMA is -6.49% below its current market price
1-Year High: BIIB 20-day SMA reached a 1-year high of $207.17 on August 19, 2026
1-Year Low: BIIB 20-day SMA reached a 1-year low of $132.01 on August 20, 2025

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%
3-Month Volatility	Aug 19, 26	39.25%	+2.5%	-6.5%	+15.1%	+52.0%	+26.9%	+103.5%	-52.6%
1-Year Volatility	Aug 19, 26	35.46%	+0.7%	-1.0%	+6.3%	+9.5%	+21.6%	-24.4%	-50.1%

20-Day SMA Highs

BIIB 20-Day SMA Highs Comparison
Period	High	Date	Current
1M	$207.17	Aug 19, 26	at high
3M	$207.17	Aug 19, 26	at high
6M	$207.17	Aug 19, 26	at high
1Y	$207.17	Aug 19, 26	at high
3Y	$268.93	Aug 18, 23	-23.0%
5Y	$341.85	Sep 1, 21	-39.4%
All	$430.62	Apr 16, 15	-51.9%

20-Day SMA Lows

BIIB 20-Day SMA Lows Comparison
Period	Low	Date	Current
1M	$202.43	Aug 3, 26	+2.3%
3M	$190.77	May 20, 26	+8.6%
6M	$180.36	Apr 28, 26	+14.9%
1Y	$132.01	Aug 20, 25	+56.9%
3Y	$118.43	May 6, 25	+74.9%
5Y	$118.43	May 6, 25	+74.9%
All	$0.38	Jan 5, 95	>+9999.0%

20-Day SMA History

Date	Value	Change
Aug 20, 2026	$207.17	+17.7%
Dec 31, 2025	$176.03	+15.1%
Dec 31, 2024	$152.95	-38.4%
Dec 31, 2023	$248.44	-13.0%
Dec 31, 2022	$285.46	+21.5%
Dec 31, 2021	$234.93	-4.6%
Dec 31, 2020	$246.18	-17.2%
Dec 31, 2019	$297.48	-3.5%
Dec 31, 2018	$308.23	-4.6%
Dec 31, 2017	$323.09	+12.5%
Dec 31, 2016	$287.19	-2.3%
Dec 31, 2015	$293.91	-14.3%
Dec 31, 2014	$342.80	+22.0%
Dec 31, 2013	$280.91	+86.4%
Dec 31, 2012	$150.73	+35.9%
Dec 31, 2011	$110.88	+65.5%
Dec 31, 2010	$66.99	+33.1%
Dec 31, 2009	$50.34	+7.9%

Date	Value	Change
Dec 31, 2008	$46.67	-27.3%
Dec 31, 2007	$64.19	+27.3%
Dec 31, 2006	$50.42	+13.4%
Dec 31, 2005	$44.47	-32.0%
Dec 31, 2004	$65.38	+75.9%
Dec 31, 2003	$37.18	+9.9%
Dec 31, 2002	$33.82	-51.1%
Dec 31, 2001	$69.18	+4.2%
Dec 31, 2000	$66.40	+173.5%
Dec 31, 1999	$24.28	+246.9%
Dec 31, 1998	$7.00	+21.4%
Dec 31, 1997	$5.77	+53.0%
Dec 31, 1996	$3.77	+39.5%
Dec 31, 1995	$2.70	+616.5%
Dec 31, 1994	$0.38	-63.4%
Dec 31, 1993	$1.03	-40.5%
Dec 31, 1992	$1.73	-21.6%
Dec 31, 1991	$2.21	-

FAQ

What is the current 20-day SMA of BIIB?: As of today, BIIB 20-day SMA is $207.17
How does BIIB 20-day SMA compare to its current price?: BIIB 20-day SMA is -6.49% below its current market price
How far is BIIB 20-day SMA from its all-time high?: BIIB 20-day SMA is currently -51.89% below its historical high of $430.62 set on April 16, 2015
What is 1-year change in BIIB 20-day SMA?: BIIB 20-day SMA is up +56.94% year-over-year

200-Day EMA

$187.23$0.35+0.18%

August 19, 2026

Summary

Current Value: As of today, BIIB 200-day EMA is $187.23, up +0.18% on August 19, 2026
Vs Current Price: BIIB 200-day EMA is -15.49% below its current market price
1-Year High: BIIB 200-day EMA reached a 1-year high of $187.23 on August 19, 2026
1-Year Low: BIIB 200-day EMA reached a 1-year low of $143.42 on September 30, 2025

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%
3-Month Volatility	Aug 19, 26	39.25%	+2.5%	-6.5%	+15.1%	+52.0%	+26.9%	+103.5%	-52.6%
1-Year Volatility	Aug 19, 26	35.46%	+0.7%	-1.0%	+6.3%	+9.5%	+21.6%	-24.4%	-50.1%

200-Day EMA Highs

BIIB 200-Day EMA Highs Comparison
Period	High	Date	Current
1M	$187.23	Aug 19, 26	at high
3M	$187.23	Aug 19, 26	at high
6M	$187.23	Aug 19, 26	at high
1Y	$187.23	Aug 19, 26	at high
3Y	$276.94	Aug 18, 23	-32.4%
5Y	$308.05	Sep 8, 21	-39.2%
All	$379.26	Jul 23, 15	-50.6%

200-Day EMA Lows

BIIB 200-Day EMA Lows Comparison
Period	Low	Date	Current
1M	$182.41	Jul 20, 26	+2.6%
3M	$173.43	May 20, 26	+8.0%
6M	$162.14	Feb 20, 26	+15.5%
1Y	$143.42	Sep 30, 25	+30.6%
3Y	$143.42	Sep 30, 25	+30.6%
5Y	$143.42	Sep 30, 25	+30.6%
All	$0.50	Feb 10, 95	>+9999.0%

200-Day EMA History

Date	Value	Change
Aug 20, 2026	$187.23	+21.7%
Dec 31, 2025	$153.82	-21.2%
Dec 31, 2024	$195.22	-24.9%
Dec 31, 2023	$259.88	+3.7%
Dec 31, 2022	$250.49	-11.0%
Dec 31, 2021	$281.35	+3.6%
Dec 31, 2020	$271.63	+1.5%
Dec 31, 2019	$267.72	-15.7%
Dec 31, 2018	$317.49	+4.9%
Dec 31, 2017	$302.69	+3.7%
Dec 31, 2016	$291.90	-9.3%
Dec 31, 2015	$321.71	+1.9%
Dec 31, 2014	$315.61	+37.2%
Dec 31, 2013	$230.08	+64.9%
Dec 31, 2012	$139.50	+43.4%
Dec 31, 2011	$97.30	+66.8%
Dec 31, 2010	$58.33	+19.2%
Dec 31, 2009	$48.93	-5.4%

Date	Value	Change
Dec 31, 2008	$51.71	-15.3%
Dec 31, 2007	$61.07	+31.6%
Dec 31, 2006	$46.40	+7.9%
Dec 31, 2005	$43.02	-25.7%
Dec 31, 2004	$57.87	+61.5%
Dec 31, 2003	$35.84	-17.2%
Dec 31, 2002	$43.30	-26.4%
Dec 31, 2001	$58.84	+19.9%
Dec 31, 2000	$49.06	+191.3%
Dec 31, 1999	$16.84	+220.2%
Dec 31, 1998	$5.26	+1.2%
Dec 31, 1997	$5.20	+46.3%
Dec 31, 1996	$3.55	+134.6%
Dec 31, 1995	$1.51	+191.2%
Dec 31, 1994	$0.52	-47.6%
Dec 31, 1993	$0.99	-40.3%
Dec 31, 1992	$1.66	-

FAQ

What is the current 200-day EMA of BIIB?: As of today, BIIB 200-day EMA is $187.23
How does BIIB 200-day EMA compare to its current price?: BIIB 200-day EMA is -15.49% below its current market price
How far is BIIB 200-day EMA from its all-time high?: BIIB 200-day EMA is currently -50.63% below its historical high of $379.26 set on July 23, 2015
What is 1-year change in BIIB 200-day EMA?: BIIB 200-day EMA is up +29.60% year-over-year

50-Day EMA

$203.98$0.72+0.35%

August 19, 2026

Summary

Current Value: As of today, BIIB 50-day EMA is $203.98, up +0.35% on August 19, 2026
Vs Current Price: BIIB 50-day EMA is -7.94% below its current market price
1-Year High: BIIB 50-day EMA reached a 1-year high of $203.98 on August 19, 2026
1-Year Low: BIIB 50-day EMA reached a 1-year low of $131.06 on August 20, 2025

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%
3-Month Volatility	Aug 19, 26	39.25%	+2.5%	-6.5%	+15.1%	+52.0%	+26.9%	+103.5%	-52.6%
1-Year Volatility	Aug 19, 26	35.46%	+0.7%	-1.0%	+6.3%	+9.5%	+21.6%	-24.4%	-50.1%

50-Day EMA Highs

BIIB 50-Day EMA Highs Comparison
Period	High	Date	Current
1M	$203.98	Aug 19, 26	at high
3M	$203.98	Aug 19, 26	at high
6M	$203.98	Aug 19, 26	at high
1Y	$203.98	Aug 19, 26	at high
3Y	$277.41	Aug 18, 23	-26.5%
5Y	$337.53	Sep 1, 21	-39.6%
All	$414.29	Apr 23, 15	-50.8%

50-Day EMA Lows

BIIB 50-Day EMA Lows Comparison
Period	Low	Date	Current
1M	$198.92	Jul 20, 26	+2.5%
3M	$187.25	May 20, 26	+8.9%
6M	$180.33	Feb 20, 26	+13.1%
1Y	$131.06	Aug 20, 25	+55.6%
3Y	$126.72	May 16, 25	+61.0%
5Y	$126.72	May 16, 25	+61.0%
All	$0.40	Jan 5, 95	>+9999.0%

50-Day EMA History

Date	Value	Change
Aug 20, 2026	$203.98	+21.4%
Dec 31, 2025	$168.00	+3.1%
Dec 31, 2024	$162.94	-34.1%
Dec 31, 2023	$247.27	-11.6%
Dec 31, 2022	$279.85	+11.4%
Dec 31, 2021	$251.30	-0.7%
Dec 31, 2020	$253.13	-11.6%
Dec 31, 2019	$286.35	-8.8%
Dec 31, 2018	$314.06	-1.6%
Dec 31, 2017	$319.22	+8.6%
Dec 31, 2016	$293.86	-0.2%
Dec 31, 2015	$294.32	-11.0%
Dec 31, 2014	$330.86	+24.0%
Dec 31, 2013	$266.92	+80.2%
Dec 31, 2012	$148.16	+35.5%
Dec 31, 2011	$109.33	+69.1%
Dec 31, 2010	$64.64	+31.6%
Dec 31, 2009	$49.10	+6.9%

Date	Value	Change
Dec 31, 2008	$45.91	-30.6%
Dec 31, 2007	$66.12	+34.8%
Dec 31, 2006	$49.07	+13.3%
Dec 31, 2005	$43.32	-30.9%
Dec 31, 2004	$62.69	+72.7%
Dec 31, 2003	$36.29	-1.5%
Dec 31, 2002	$36.83	-44.1%
Dec 31, 2001	$65.85	+4.7%
Dec 31, 2000	$62.92	+175.1%
Dec 31, 1999	$22.88	+274.8%
Dec 31, 1998	$6.10	+3.4%
Dec 31, 1997	$5.90	+58.6%
Dec 31, 1996	$3.72	+56.5%
Dec 31, 1995	$2.38	+496.0%
Dec 31, 1994	$0.40	-59.3%
Dec 31, 1993	$0.98	-39.8%
Dec 31, 1992	$1.63	-33.8%
Dec 31, 1991	$2.46	-

FAQ

What is the current 50-day EMA of BIIB?: As of today, BIIB 50-day EMA is $203.98
How does BIIB 50-day EMA compare to its current price?: BIIB 50-day EMA is -7.94% below its current market price
How far is BIIB 50-day EMA from its all-time high?: BIIB 50-day EMA is currently -50.76% below its historical high of $414.29 set on April 23, 2015
What is 1-year change in BIIB 50-day EMA?: BIIB 50-day EMA is up +55.64% year-over-year

20-Day EMA

$208.34$1.39+0.67%

August 19, 2026

Summary

Current Value: As of today, BIIB 20-day EMA is $208.34, up +0.67% on August 19, 2026
Vs Current Price: BIIB 20-day EMA is -5.97% below its current market price
1-Year High: BIIB 20-day EMA reached a 1-year high of $208.34 on August 19, 2026
1-Year Low: BIIB 20-day EMA reached a 1-year low of $133.05 on August 20, 2025

Performance

BIIB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
20-Day EMA	Aug 19, 26	$208.34	+0.7%	+2.7%	+9.3%	+19.2%	+56.6%	-22.8%	-38.7%
200-Day EMA	Aug 19, 26	$187.23	+0.2%	+2.6%	+8.0%	+21.7%	+29.6%	-32.4%	-38.5%
50-Day EMA	Aug 19, 26	$203.98	+0.3%	+2.5%	+8.9%	+21.4%	+55.6%	-26.5%	-39.2%
200-Day SMA	Aug 19, 26	$187.36	+0.2%	+3.5%	+11.1%	+32.7%	+35.1%	-34.4%	-35.2%
50-Day SMA	Aug 19, 26	$204.52	+0.3%	+2.8%	+10.2%	+22.2%	+56.7%	-27.0%	-41.3%
20-Day SMA	Aug 19, 26	$207.17	+0.6%	+1.1%	+8.6%	+17.7%	+56.9%	-23.0%	-38.7%
Price	Aug 19, 26	$221.56	+4.2%	+10.8%	+18.0%	+25.9%	+59.4%	-15.2%	-35.2%
14-Day RSI	Aug 19, 26	65.67	+13.2%	+35.4%	+36.8%	+17.8%	+6.5%	+90.5%	+25.5%
Beta	Aug 19, 26	0.25	0.0%	+8.7%	-46.8%	-56.1%	-58.3%	-74.5%	-64.3%
ATR	Aug 19, 26	$6.53	+3.8%	-26.2%	+8.4%	+57.3%	+59.3%	+11.3%	-29.7%
10-Day Volatility	Aug 19, 26	26.84%	+39.6%	-58.9%	-33.8%	+57.3%	-24.7%	+45.5%	+47.5%
3-Month Volatility	Aug 19, 26	39.25%	+2.5%	-6.5%	+15.1%	+52.0%	+26.9%	+103.5%	-52.6%
1-Year Volatility	Aug 19, 26	35.46%	+0.7%	-1.0%	+6.3%	+9.5%	+21.6%	-24.4%	-50.1%

20-Day EMA Highs

BIIB 20-Day EMA Highs Comparison
Period	High	Date	Current
1M	$208.34	Aug 19, 26	at high
3M	$208.34	Aug 19, 26	at high
6M	$208.34	Aug 19, 26	at high
1Y	$208.34	Aug 19, 26	at high
3Y	$270.00	Aug 18, 23	-22.8%
5Y	$341.90	Aug 30, 21	-39.1%
All	$428.03	Mar 30, 15	-51.3%

20-Day EMA Lows

BIIB 20-Day EMA Lows Comparison
Period	Low	Date	Current
1M	$201.98	Jul 27, 26	+3.1%
3M	$190.47	May 21, 26	+9.4%
6M	$179.91	Apr 17, 26	+15.8%
1Y	$133.05	Aug 20, 25	+56.6%
3Y	$120.56	May 9, 25	+72.8%
5Y	$120.56	May 9, 25	+72.8%
All	$0.38	Dec 30, 94	>+9999.0%

20-Day EMA History

Date	Value	Change
Aug 20, 2026	$208.34	+19.2%
Dec 31, 2025	$174.77	+14.1%
Dec 31, 2024	$153.17	-38.9%
Dec 31, 2023	$250.51	-11.7%
Dec 31, 2022	$283.75	+18.5%
Dec 31, 2021	$239.54	-3.0%
Dec 31, 2020	$246.85	-16.9%
Dec 31, 2019	$297.21	-2.2%
Dec 31, 2018	$303.75	-5.6%
Dec 31, 2017	$321.76	+11.3%
Dec 31, 2016	$289.01	-2.9%
Dec 31, 2015	$297.57	-12.1%
Dec 31, 2014	$338.53	+21.8%
Dec 31, 2013	$277.90	+86.3%
Dec 31, 2012	$149.18	+34.7%
Dec 31, 2011	$110.78	+66.2%
Dec 31, 2010	$66.66	+31.2%
Dec 31, 2009	$50.83	+9.4%

Date	Value	Change
Dec 31, 2008	$46.45	-25.3%
Dec 31, 2007	$62.22	+24.7%
Dec 31, 2006	$49.89	+12.0%
Dec 31, 2005	$44.55	-31.6%
Dec 31, 2004	$65.12	+76.1%
Dec 31, 2003	$36.97	+6.9%
Dec 31, 2002	$34.58	-49.9%
Dec 31, 2001	$69.04	+5.4%
Dec 31, 2000	$65.51	+149.1%
Dec 31, 1999	$26.29	+273.5%
Dec 31, 1998	$7.04	+22.3%
Dec 31, 1997	$5.76	+53.4%
Dec 31, 1996	$3.76	+33.0%
Dec 31, 1995	$2.82	+650.7%
Dec 31, 1994	$0.38	-62.0%
Dec 31, 1993	$0.99	-40.9%
Dec 31, 1992	$1.67	-25.3%
Dec 31, 1991	$2.24	-

FAQ

What is the current 20-day EMA of BIIB?: As of today, BIIB 20-day EMA is $208.34
How does BIIB 20-day EMA compare to its current price?: BIIB 20-day EMA is -5.97% below its current market price
How far is BIIB 20-day EMA from its all-time high?: BIIB 20-day EMA is currently -51.33% below its historical high of $428.03 set on March 30, 2015
What is 1-year change in BIIB 20-day EMA?: BIIB 20-day EMA is up +56.58% year-over-year

Data Sources & References

BIIB Official Website www.biogen.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/875045/000087504526000013/0000875045-26-000013-index.htm
BIIB Profile on Yahoo Finance finance.yahoo.com/quote/BIIB
BIIB Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/biib