BIIB Wire Story Reactions & EOD Technical StudyDaily closes (Databento EOD) pinned with every AlgoThesis Wire story (dot colour = next trading day close) and SEC filing
Nov 5, 2026CLOSE $243.931D −4.14%3M +17.77%SMA20 $242.78SMA50 $229.47RSI(14) 53.6
Data provided by Databento (end of day). Next close = the first close after a story against the close before it; official daily closes only, not a call, not advice.
The numbers
fiscal 2025, as filed with the SEC · 66-metric EOD snapshot via Databento
Market cap$37.6B
EV / True FCF23.2x
Revenue$9.9B +2.2%
True FCF (ex-SBC)$1.8B −24.7%
Rule of 4022.9%
ROIC11.0%
True FCF Yield4.7%
EPS, diluted$8.79 −21.4%
Modern Valuation (EOD)
Market Cap$37.6B
Enterprise Value$40.9B
EV / True FCF23.22
EV / FCF19.93
EV / Gross Profit—
EV / EBIT14.39
EV / Sales4.13
P / E (GAAP)29.08
P / FCF18.33
P / Oper. CF17.05
P / Book2.06
Owner & Cash Yields
True FCF Yield4.7%
FCF Yield5.5%
Owner Earn. Yield4.3%
Earnings Yield3.4%
Shareholder Yield−0.8%
Buyback Yield0.0%
Dividend Yield—
Dividend / sh—
Payout Ratio—
FCF / sh$13.87
EPS (diluted)$8.79
Compounder & Returns
Rule of 4022.9%
ROIC11.0%
Cash ROIC (CROIC)9.5%
GP / Assets—
ROE7.1%
ROA4.4%
Gross Margin—
Oper. Margin28.7%
Net Margin13.1%
FCF Margin20.7%
True FCF Margin17.8%
Quality & Dilution
Cash Conversion159%
Accrual Ratio−3.1%
SBC % of FCF14.2%
SBC % of Rev2.9%
Reinvest. Rate68%
Sales Growth Y/Y+2.2%
Sales 3Y CAGR−0.9%
EPS Growth Y/Y−21.4%
FCF Growth Y/Y−24.7%
FCF 3Y CAGR+21.5%
Share Change Y/Y+0.8%
Balance Sheet & Scale
Revenue (FY)$9.9B
Gross Profit (FY)—
Oper. Income (FY)$2.8B
GAAP Net Income$1.3B
True FCF (ex-SBC)$1.8B
Cash & Equiv$3.0B
Total Debt$6.3B
Net Cash (Debt)$-3.3B
Net Cash % MCap−8.7%
Debt / FCF (yrs)3.1y
Current Ratio2.68147.82M sh
Price & Technicals (EOD)
Perf Week−2.29%
Perf Month+9.80%
Perf Quarter+17.31%
Perf Half Y+27.46%
Perf YTD+33.05%
SMA 20 Dist+0.47%$242.78
SMA 50 Dist+6.30%$229.47
SMA 100 Dist+11.90%$217.98
Window High−4.14%$254.46
Window Low+35.01%$180.67
RSI (14) · Vol53.637%v
Income Distribution & Cash Flow ConversionHow every dollar of BIIB revenue flows through cost of goods, operating expenses, taxes, GAAP net income, and dilution-adjusted free cash flow
Less: Stock-Based Comp (SBC)−$290.8M(14.2% of FCF)
True FCF (Owner Cash ex-SBC)$1.8B(17.8% of rev)
Revenue by fiscal year
$11.0BFY21
$10.2BFY22
$9.8BFY23
$9.7BFY24
$9.9BFY25
Operating leverage — margins
GrossOperatingNet
Unlocked SEC EDGAR Accounting Statements (USD)All 3 statements · Common-size (% of Revenue / Assets) · YoY growth · Tap any core row to explain
Line Item (USD)
FY2021
FY2022
FY2023
FY2024
FY2025
YoY Δ
4Y CAGR
Trend
Income Statement
Revenue ▸
$11.0B
$10.2B
$9.8B
$9.7B
$9.9B
+2.2%
−2.6%
Cost of Revenue (COGS)
$2.1B
$2.3B
$2.5B
$2.3B
$2.4B
+4.1%
+3.3%
Research & Development (R&D)
—
—
—
—
$1.3B
—
—
Selling, General & Admin (SG&A)
$2.7B
$2.4B
$2.5B
$2.4B
$2.4B
+1.2%
−2.3%
Operating Income (EBIT) ▸
$2.8B
—
—
—
$2.8B
—
+0.0%
Interest Expense
$253.6M
$246.6M
$246.9M
$250.3M
$267.5M
+6.9%
+1.3%
Income Tax Expense
$52.5M
$632.8M
$135.3M
$273.8M
$263.6M
−3.7%
+49.7%
GAAP Net Income ▸
$1.6B
$3.0B
$1.2B
$1.6B
$1.3B
−20.8%
−4.5%
Diluted EPS ▸
$10.40
$20.87
$7.97
$11.18
$8.79
−21.4%
−4.1%
Diluted Shares
149.6M
146.0M
145.6M
145.9M
147.1M
+0.8%
−0.4%
Balance Sheet
Cash & Equivalents
$2.3B
$3.4B
$1.0B
$2.4B
$3.0B
+26.7%
+7.4%
Inventory
$1.4B
$1.3B
$2.5B
$2.5B
$2.2B
−11.9%
+12.5%
Total Current Assets
$7.9B
$9.8B
$6.9B
$7.5B
$9.0B
+20.3%
+3.4%
Total Assets
$23.9B
$24.6B
$26.8B
$28.0B
$29.4B
+5.0%
+5.4%
Total Current Liabilities
$4.3B
$3.3B
$3.4B
$5.5B
$3.3B
−39.4%
−6.0%
Total Debt (Short + Long Term)
$7.3B
$6.3B
$6.9B
$6.3B
$6.3B
−0.1%
−3.6%
Total Liabilities
$12.9B
$11.2B
$12.0B
$11.3B
$11.2B
−1.3%
−3.5%
Stockholders' Equity
$11.0B
$13.4B
$14.8B
$16.7B
$18.3B
+9.2%
+13.6%
Net Cash / (Net Debt)
$-5.0B
$-2.9B
$-5.9B
$-3.9B
$-3.3B
+16.4%
—
Invested Capital
$16.0B
$16.3B
$20.7B
$20.6B
$21.5B
+4.4%
+7.8%
Cash Flow & Capital Allocation
Operating Cash Flow (OCF) ▸
$3.6B
$1.4B
$1.5B
$2.9B
$2.2B
−23.3%
−11.8%
Depreciation & Amortization (D&A)
$487.7M
$518.4M
$494.8M
$673.2M
$779.9M
+15.8%
+12.5%
Stock-Based Compensation (SBC)
$238.6M
$254.1M
$264.2M
$291.2M
$290.8M
−0.1%
+5.1%
Capital Expenditures (CapEx)
$258.1M
$240.3M
$277.0M
$153.7M
$153.8M
+0.1%
−12.1%
Free Cash Flow (FCF) ▸
$3.4B
$1.1B
$1.3B
$2.7B
$2.1B
−24.7%
−11.8%
True FCF (ex-SBC Owner Cash)
$3.1B
$889.9M
$1.0B
$2.4B
$1.8B
−27.6%
−13.5%
Share Repurchases (Buybacks)
$1.8B
$750.0M
$0
$0
$0
—
—
Fundamentals, income distribution and multi-year statements from SEC EDGAR filings (public domain). Valuation multiples, performance and technicals computed from Databento 1D EOD closes. For information only, not investment advice.
On the Wire
what BIIB did at the next close after each story
No Wire story has named BIIB yet.
The Wire at 7 AM ET, free. Top stories with a bull and a bear case on each, every morning. No account needed.
What happened · big days
17 big days in a year, and what we hold on each
A big day is a close more than 3.86% from the one before, three times BIIB’s median day (1.29%). On 5 of the 17, its peer group moved the same way at least half as far. We show what we hold. We never name a cause.
every other trading daya big day, numbered in the list below±3.86%Hover a bar for its day. Click a big day to open it.
Shaded: since our stories began, Jun 10. Tap a bar for its day.
#DayBIIBWhat we hold that dayGroup (median of 4) · each
1 Nov 21, 2025+4.23%
Before our storiesgroup +1.5%, did not move with it
1Nov 21, 2025+4.23%
Before our stories
+1.5% did not move with itMRNA +6.1 · EXEL +1.8 · GILD +1.3 · AMGN +0.4
2 Jan 6, 2026+4.57%
Before our storiesgroup +3.0%, moved with BIIB
2Jan 6, 2026+4.57%
Before our stories
+3.0% moved with BIIBMRNA +10.8 · EXEL +3.0 · AMGN +3.0 · GILD +2.6
3 Jan 13, 2026−3.95%
Before our storiesgroup −0.2%, did not move with it
3Jan 13, 2026−3.95%
Before our stories
−0.2% did not move with itGILD −0.7 · AMGN −0.4 · EXEL +0.1 · MRNA +17.0
4 Jan 14, 2026−5.04%
Before our storiesgroup +2.2%, did not move with it
4Jan 14, 2026−5.04%
Before our stories
+2.2% did not move with itAMGN +1.4 · GILD +1.9 · MRNA +2.5 · EXEL +2.6
5 Jan 21, 2026+4.38%
Before our storiesgroup +3.9%, moved with BIIB
5Jan 21, 2026+4.38%
Before our stories
+3.9% moved with BIIBMRNA +15.8 · GILD +4.0 · AMGN +3.8 · EXEL +2.4
6 Feb 4, 2026+4.92%
Before our storiesgroup +1.7%, did not move with it
6Feb 4, 2026+4.92%
Before our stories
+1.7% did not move with itAMGN +8.2 · GILD +2.1 · MRNA +1.4 · EXEL +0.1
7 Feb 6, 2026+8.53%
Resultsgroup +2.9%, did not move with it
7Feb 6, 2026+8.53%
ResultsFirst close after the Feb 6 results filing
+2.9% did not move with itAMGN +4.5 · EXEL +3.6 · GILD +2.1 · MRNA +0.3
8 Apr 29, 2026+6.00%
Resultsgroup −0.5%, did not move with it
8Apr 29, 2026+6.00%
ResultsFirst close after the Apr 29 results filing
−0.5% did not move with itGILD −0.3 · AMGN −0.5 · EXEL −0.5 · MRNA −3.0
9 May 14, 2026−6.43%
Before our storiesgroup −0.6%, did not move with it
9May 14, 2026−6.43%
Before our stories
−0.6% did not move with itMRNA −0.8 · GILD −0.7 · EXEL −0.4 · AMGN −0.1
10 Jun 26, 2026+6.97%
Nothing on BIIBgroup +3.1%, did not move with it
10Jun 26, 2026+6.97%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
+3.1% did not move with itMRNA +12.6 · GILD +3.3 · EXEL +2.9 · AMGN +1.6
11 Jul 13, 2026+4.96%
Nothing on BIIBgroup −0.8%, did not move with it
11Jul 13, 2026+4.96%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
−0.8% did not move with itGILD +1.2 · AMGN −0.8 · EXEL −0.8 · MRNA −1.9
12 Jul 14, 2026−8.17%
Nothing on BIIBgroup −0.8%, did not move with it
12Jul 14, 2026−8.17%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
−0.8% did not move with itAMGN −1.4 · GILD −1.0 · EXEL −0.5 · MRNA +0.6
13 Jul 16, 2026+5.92%
Nothing on BIIBgroup +1.9%, did not move with it
13Jul 16, 2026+5.92%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
+1.9% did not move with itAMGN +3.7 · GILD +3.5 · EXEL +0.2 · MRNA −7.5
14 Aug 19, 2026+4.24%
Nothing on BIIBgroup +3.5%, moved with BIIB
14Aug 19, 2026+4.24%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
+3.5% moved with BIIBMRNA +177.0 · AMGN +4.0 · GILD +2.9 · EXEL +2.4
15 Oct 20, 2026+4.12%
Nothing on BIIBgroup +3.0%, moved with BIIB
15Oct 20, 2026+4.12%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
+3.0% moved with BIIBMRNA +6.7 · AMGN +3.3 · EXEL +2.7 · GILD +2.3
16 Oct 22, 2026+5.34%
Nothing on BIIBgroup +1.6%, did not move with it
16Oct 22, 2026+5.34%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
+1.6% did not move with itGILD +2.4 · AMGN +2.0 · EXEL +1.1 · MRNA −17.6
17 Nov 5, 2026−4.14%
Nothing on BIIBgroup −4.8%, moved with BIIB
17Nov 5, 2026−4.14%
Nothing on BIIBNo BIIB story, brief or results filing in our record that day
−4.8% moved with BIIBMRNA −6.5 · EXEL −5.5 · GILD −4.0 · AMGN −3.8
A story on the same day is not a cause, and a group move is not proof either. Group: the median of AMGN, GILD, MRNA and EXEL that day, the largest companies in BIIB’s SEC industry; “moved with BIIB” means the same direction and at least half the size.
What’s next · results
Before the next report: what the first day after the last four did
Six trading days after each results filing (SEC 8-K, Item 2.02). BIIB reports before the open, so day 1 is that day’s close. 3 of 4 times, day 6 ended on the same side as day 1.
Reported Feb 6, 2026
day 1+8.53%day 6+6.02%
Reported Apr 29, 2026
day 1+6.00%day 6+3.98%
Reported Jul 29, 2026
day 1+1.76%day 6+0.50%
Reported Oct 28, 2026
day 1−3.43%day 6+0.68%
Next report: expected late January to early FebruaryEstimated from the dates of its last four results filings. Not announced. Since the Oct 28 report: −3.48%. Four reports is a small sample.
Each line is BIIB’s close against its close before the filing, on licensed end-of-day closes. What happened after each report, not a forecast; a move on the day is not a cause.
Same industry
BIIB against four biotech peers, a year at 100
BIIB is up 63.6% in a year. Moderna is up 10.5 times and Exelixis is up 78.3%. Of these four, Amgen (+49.4%) and Gilead Sciences (+46.8%) did less. Weekly closes, Nov 7, 2025 = 100, on a log scale so a 10.5-fold rise and a 46.8% rise both read honestly.
End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in BIIB’s SEC industry (Biological Products, (No Diagnostic Substances)) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.