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Stocks / BIIB vs ZTS

BIIB vs ZTS: Which Stock Is the Better Buy?

Biogen Inc. and Zoetis Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Healthcare.

BIIB is the larger company ($31.9B vs $31.4B). On the fundamentals, ZTS grows revenue faster (7.2% vs -6.0%); ZTS earns a higher net margin (28.2% vs 13.1%); ZTS has the stronger return on equity (78.3% vs 7.1%). On the filings, ZTS carries fewer potential red flags (0 vs 1). Full numbers below — the stronger figure on each row is in green.

AI verdict — BIIB vs ZTS, read from the filings

The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.

 Biogen Inc. (BIIB)Zoetis Inc. (ZTS)
Market cap$31.9B$31.4B
Revenue (latest FY)$9.89B$9.47B
Net income (latest FY)$1.29B$2.67B
Revenue growth (5y CAGR)-6.0%7.2%
Net margin13.1%28.2%
Return on equity7.1%78.3%
P/E ratio23.312.3
Dividend yield2.8%
Profitable years (of last 10)1010
Positive free cash flowYesYes
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See the full BIIB vs ZTS breakdown

Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.

Open BIIB's full financials →   Open ZTS's full financials →

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Frequently asked questions

Which is bigger, BIIB or ZTS?

Biogen Inc. is larger by market capitalization — $31.9B versus $31.4B.

Which grows faster, BIIB or ZTS?

Over the last five fiscal years, Zoetis Inc. grew revenue faster — 7.2%/yr versus -6.0%/yr, computed from SEC-filed statements.

Where does this data come from?

All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.

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BIIB fundamentals → · ZTS fundamentals → · All 1,500+ companies → · Free screener →