The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Amgen is the larger company, worth $217.3B, close to Gilead Sciences's $184.1B.
  • Gilead Sciences grew revenue faster over the last year (+10.2% vs +9.5%).
  • Amgen keeps more of each dollar of revenue as operating profit (30.0% vs -8.2%).
  • On earnings, Gilead Sciences is the cheaper stock (20.2x vs 28.0x).
  • Amgen's price assumes faster free cash flow growth: about 9% a year, against 5% for Gilead Sciences (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureAMGNGILD
Market cap$217.3B$184.1B
Share price$414.87$151.17
Revenue (last fiscal year)$36.8B$29.4B
Free cash flow (last fiscal year)$8.1B$9.5B
Revenue growth, last year+9.5%+10.2%
Revenue growth per year, last 5 fiscal years+9.1%+1.9%
Operating margin30.0%-8.2%
Net margin22.9%-10.6%
Return on equity74.8%-27.4%
P/E (trailing)28.0x20.2x
Price / free cash flow26.8x19.5x
EV / EBITDA13.5x—
FCF growth the price implies8.8%4.6%
Dividend yield2.3%2.2%
Debt / equity7.18x3.18x
Fundamental gradeBD
Superinvestors holding it107
Insider purchases, last 12 months84

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Amgen

YearRevenueFree cash flowOp. margin
2021$26.0B$8.4B29.4%
2022$26.3B$8.8B36.3%
2023$28.2B$7.4B28.0%
2024$33.4B$10.4B21.7%
2025$36.8B$8.1B24.7%

Gilead Sciences

YearRevenueFree cash flowOp. margin
2021$27.3B$10.8B36.3%
2022$27.3B$8.3B26.9%
2023$27.1B$7.4B28.0%
2024$28.8B$10.3B5.8%
2025$29.4B$9.5B34.0%

Where the revenue comes from

Amgen · by products, 2025

Product sales$35.1B96%
Other revenues$1.6B4%

Gilead Sciences · by products, 2025

Biktarvy$14.3B49%
Descovy$2.8B9%
Genvoya$1.5B5%
Yescarta$1.5B5%
Trodelvy$1.4B5%
Sofosbuvir/Velpatasvir$1.3B4%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open AMGN in Investingly

Questions

Which is bigger, Amgen or Gilead Sciences?

Amgen (AMGN), at $217.3B against $184.1B.

Is AMGN or GILD cheaper?

By trailing P/E, Gilead Sciences (20.2x) is cheaper than Amgen (28.0x). A lower multiple can also mean the market expects less growth.

Which grows faster, AMGN or GILD?

Gilead Sciences: revenue grew +10.2% over the last year, against +9.5%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.