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BIIB · Biogen Inc.

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$253.84 +12.86 (+5.34%) At close · Oct 22
Market Cap
$37.48B
Shares
147.64M
Volume · Oct 22 2.24M Avg daily vol (3M) 1.03M

Price & Indicators

Drag to pan · scroll to zoom
20d MA 50d MA 200d MA Earnings Filing Insider Congress Investor day
Close$253.84 Open$240.61 Day$240.02–254.41 52W close$147.72–253.84 Avg vol 30d1.2M Short int6.0M · 4.0% float · 4.9d Short vol75% Last earningsOct 28, 2026 DataJan 2020–Oct 2026 Filing10-Q · Jul 29

Up next

Next earnings call
Oct 28, 2026 Scheduled · in 1 wks
filed Jul 29, 2026
call held Jul 29, 2026

Metrics snapshot

Useful current figures from the complete screener profile.

Revenue (TTM)
$10.03B
Trailing 12 months
Net income (TTM)
$834.60M
Trailing 12 months
Revenue growth YoY
+3.4%
Year over year
Operating margin
—
Trailing 12 months
P / E (TTM)
45.1
Trailing earnings · reciprocal yield 2.2%
FCF yield
7.2%
TTM · current market cap
Return on invested capital
—
Trailing 12 months
Net cash
−$6.01B
Latest balance sheet
Dividend yield
—
Trailing 12 months
Shares change YoY
+1.4%
Year over year · more shares
Price change (1Y)
+71.8%
Trailing year
Short interest
4.0%
Latest settlement · 4.9 days to cover
View all 122 metrics

AI Brief

Q2 FY26 earnings call · Jul 29, 2026
Q2 FY26

TL;DR. Biogen reported Q2 total revenue of $2.7B, up 3% YoY, and raised full-year 2026 total revenue guidance from a mid-single-digit percentage decrease to a mid-single-digit percentage increase, while updating its full-year non-GAAP diluted EPS range to $12–$13.

Bullish
  • + Raised 2026 total revenue guidance from a mid-single-digit percentage decrease to a mid-single-digit percentage increase.
  • + Growth portfolio generated over $1B in Q2, up 24% YoY, now exceeding legacy MS portfolio.
  • + Q2 total revenue of $2.7B grew 3% YoY, supported by 10% growth in anti-CD20 royalties/profit share.
  • + Lakembi iClick FDA approval enables first-of-its-kind home dosing for both initiation and maintenance in Alzheimer's.
Bearish
  • − Appellus acquisition drives ~$0.85 non-GAAP EPS dilution in 2026 from financing costs.
  • − Non-GAAP core OPEX increased 20% YoY in Q2, including ~$95M of post-acquisition Appellus operating expenses.
  • − Deurinursen tau program characterized as high-risk, high-reward with no impact on Biogen's growth over the rest of this decade.
  • − Q2 GAAP cost of sales impacted by higher amortization and fair value step-ups from SkyClaris (Riata) and Saifovri/Ampavelli (Appellus) acquisitions.
  • − Appellus acquisition adds $120–130M impact to other income/expense line in both 2026 and 2027 from interest expense and foregone interest income.

AI-generated from the earnings call and 8-K · may contain errors · not investment advice

Equibles Rating

blended score · not investment advice
Overall
Buy
SellHoldBuy
Technical Buy Momentum Very Strong Sentiment Neutral Fundamentals Strong Quant / Vol Low
Market backdrop VIX 16.7 · calm Equity put/call 0.52
Technical
price trend
Buy
50 / 200-day cross No cross
Price vs 200-day avg +27%
above
Price vs 50-day avg +14%
above
RSI (14) 75
overbought
MACD trend Positive
52-week position 100%
near high
Momentum
relative strength
Very Strong
1-month return +12%
trailing
6-month return +36%
trailing
YTD return +44%
this year
Relative strength +30%
vs S&P · 6-mo
Sentiment
smart money
Neutral
Trend (MA cross) No cross
50d $223 › 200d $199 — 50d above 200d
Institutional flow Distributing
195 of 1,057 funds reported for Sep 30 · net -85.5K sh shares · +16 new
Insider flow Flat
No net insider activity over 90 days
Short interest Rising
4.04% of float · ▲ +2.5% MoM · 4.9 days cover
Volume signal Normal
Volume near normal
Institution breadth Multi-yr high
1,057 holders — near 3-yr high, broad support
Squeeze score 85
high risk · 0–100
Fundamentals
Strong
Revenue growth +2%
Y/Y
Gross margin 118%
contracting
EPS growth −21%
Y/Y
Free cash flow $2.1B
Buyback $2.1B
remaining
Balance sheet $1.6B
net cash
Quant / Vol
risk profile
Low
Volatility 34%
annualized · 1-yr
Max drawdown −14%
past year
ATR 2.7%
of price · 14-day

Blended from price, momentum, positioning, fundamentals & volatility · daily-close · not investment advice. Market backdrop is context, not part of the score.

Guidance & track record

Beat or met 3 of last 4
Latest guidance · from the Earnings Call filed Jul 29, 2026
2026
Impact to our other income expense line $120M – $130M
by the end of 2027
Run rate synergies at least $250M
2027
Impact to our other income expense line $120M – $130M
full-year 2026
Non-GAAP diluted EPS Non-GAAP Lowered $12.00 – $13.00
Apr 29, 2026 $14.25 – $15.25 changed to Jul 29, 2026 $12.00 – $13.00
second half of 2026
Core operating expenses Non-GAAP $2.65B – $2.7B
Prior guidance period ended · from the 8-K filed Jul 1, 2026
Acquired in-process research and development, upfront and milest · third quarter of 2026 $290M – $320M
Guided vs delivered · last 4 settled
Total revenue full year 2022
guided $10B – $10.15B
$10.17B Beat +1.0%
Full-year 2021 revenue full-year 2021
guided $10.8B – $10.9B
$10.98B Beat +1.2%
Full-year 2020 GAAP diluted EPS full year 2020
guided $25.50 – $26.50
$24.80 Miss −4.6%
Full-year revenue full-year 2020
guided $13.2B – $13.4B
$13.44B Beat +1.1%

Guidance from company 8-Ks · delivered figures from as-reported statements · no analyst estimates involved.

Technicals

trend & momentum for long-term holders Buy
1 · 1 · 4
50 / 200-day cross
No cross Neutral
Price vs 200-day avg
+27% Bullish
Price vs 50-day avg
+14% Bullish
RSI (14)
75 Bearish
MACD trend
Positive Bullish
52-week position
100% Bullish
Market signals — smart money & positioning
Bearish · 2 of 6
Trend (MA cross) No cross
50d $223 › 200d $199 — 50d above 200d
Institutional flow Distributing
195 of 1,057 funds reported for Sep 30 · net -85.5K sh shares · +16 new
Insider flow Flat
No net insider activity over 90 days
Short interest Rising
4.04% of float · ▲ +2.5% MoM · 4.9 days cover
Volume signal Normal
Volume near normal
Institution breadth Multi-yr high
1,057 holders — near 3-yr high, broad support
Price context
position in its 52-week range
Range low $148 Now $254 · 100% Range high $254
vs 200-day avg +27% vs 50-day avg +14%

Illustrative technical + ownership context — a signal mix, not investment advice.

Key metrics

Earlier KPI extraction records exist, but do not meet the current evidence-completeness requirements. No current verified series is available. Earlier figures remain withheld until revalidated; this is not evidence that the company reports no KPIs.

Versus peers

Drug Manufacturers - General — same industry group
Open screener →
Company Mkt cap YTD Rev growth Y/Y P/E Short % shares
BIIB
Biogen Inc.
this stock
$37.48B +44.2% +2.2% — 4.0%
LLY
ELI LILLY & Co
$1.20T +21.6% +44.7% 42.6 0.7%
JNJ
Johnson & Johnson
$621.22B +29.3% +6.0% 39.2 0.9%
ABBV
AbbVie Inc.
$500.63B +24.8% +8.6% 80.0 0.9%
MRK
Merck & Co., Inc.
$369.78B +39.9% +1.3% 119.9 1.1%

Peers by industry group · P/E from as-reported trailing EPS · short % is of shares outstanding

At a glance

key data from every section
Ownership
Institutional Holders Reducing
Holders
1,064
% held
99.6%
Reported
195 of 1,057
Top holder
FMR LLC
Held Float
View
Held by Funds
Fund positions
858
View
Short & Settlement
Short Interest Rising
Shares short
6.0M
Days to cover
4.9d
Change
+148.1K sh
View
Short Volume
Short vol %
75%
As of
Oct 22, 2026
Short Total
View
Fails to Deliver
FTD shares
49.2K
Value
$11.2M
As of
Sep 28, 2026
View
Off-Exchange
Off-exchange %
30.7%
Week of
Sep 14, 2026
Off-exch Lit
View
Smart Money
Congressional Trades Sell
Member
Maria Elvira Salazar
Amount
$1.0K–$15.0K
Traded
Sep 24, 2026
View
Financials
Financials
Revenue (FY)
$9.9B
Net income (FY)
$1.3B
EPS diluted
$8.79
View
Buybacks
Authorized
$5.0B
Remaining
$2.1B
Spent Remaining
View
Filings
SEC Filings
Latest
Investor Event Transcript
Filed
Sep 14, 2026
This year
29
View
Proposed Sales
Value
$119.2K
Shares
593
Filed
Aug 4, 2026
View
Earnings & Events
Webcasts Upcoming
Next webcast
Oct 28, 2026
Last webcast
Sep 14, 2026
View
Investor Relations
Latest news
Biogen to Present New Data Across…
Published
Oct 19, 2026
Upcoming events
1
View

Performance

5D 20D 120D MTD YTD
BIIB +7.9% +12.1% +35.7% +12.4% +44.2%
SPY -1.0% -0.4% +6.0% +0.2% +12.0%
vs SPY +8.9% +12.6% +29.7% +12.2% +32.2%

Capital returns

Buyback program · as of Mar 31, 2026
Authorized
$5.00B
Spent (derived)
$2.90B
Remaining
$2.10B
Spent Remaining

Dividends per share over the trailing 365 days by ex-date · buyback figures as last reported in SEC filings ("spent" derived as authorized − remaining; when several programs run concurrently, authorized is their combined total per the newest filing) · components shown separately — trailing-year buyback spend isn't tracked, so no combined shareholder yield is derived.

Key facts CIK 875045 CUSIP 09062X103 13F (30d) 204 filings 189 filers Visit website Investor relations