TotalMarketCap

Market cap

$657.655 M

$3.98 +5.57%

Close of 6 Nov 2026

As of 6 Nov 2026, Ironwood Pharmaceuticals (IRWD) has a market capitalization of $657.7M. 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

$296.2M

#2122 by revenue

Earnings

$24.0M

#1797 by earnings

Shares outstanding

165,550,760

Latest filing cover page

P/E ratio

27.4

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #163ArdelyxARDX$750.3M
  2. #164Lexicon PharmaceuticalsLXRX$723.1M
  3. #165Ironwood PharmaceuticalsIRWD$657.7M
  4. #166Sagimet BiosciencesSGMT$642.6M
  5. #167Wave Life SciencesWVE$638.0M

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Where these numbers come from

Share counts and financials for Ironwood 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.