TotalMarketCap

Market cap

$1.176 B

$27.65 -1.34%

Close of 6 Nov 2026

As of 6 Nov 2026, Amphastar Pharmaceuticals (AMPH) has a market capitalization of $1.18B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$719.9M

#1708 by revenue

Earnings

$98.1M

#1314 by earnings

Shares outstanding

42,652,154

Latest filing cover page

P/E ratio

12.0

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #138MannkindMNKD$1.21B
  2. #139Avalyn PharmaAVLN$1.18B
  3. #140Amphastar PharmaceuticalsAMPH$1.18B
  4. #141VerastemVSTM$1.15B
  5. #142COMPASS PathwaysCMPS$1.11B

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Where these numbers come from

Share counts and financials for Amphastar Pharmaceuticals are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.