Showing results for RGEN, 2026-11-20(m), calls & puts
RGEN Option Chain FAQ
What is an option chain?
An option chain lists every call and put for a stock, with prices, volume, open interest, and Greeks for each strike and expiration date.
How many RGEN option contracts are listed?
As of Nov 4, 2026, Repligen Corp (RGEN) had 412 listed option contracts across 6 expiration dates, from Nov 20, 2026 to Dec 17, 2027.
When do RGEN options expire?
Repligen had 6 expiration dates as of Nov 4, 2026, 1 of them weekly. The nearest was Nov 20, 2026 and the furthest Dec 17, 2027.
How actively are RGEN options traded?
49 Repligen option contracts traded on Nov 4, 2026, and open interest was 13.76K contracts. Over the past 30 days, volume averaged 519 contracts per day. The RGEN option volume chart shows volume by strike and expiration date.
Is RGEN implied volatility high right now?
Repligen IV rank is 9, so its 30-day implied volatility of 52.6% is near the bottom of its one-year range. Over the past year it ranged from 37.8% on Dec 22, 2025 to 195.3% on Oct 16, 2026. See the RGEN implied volatility history for a longer view.
What is Repligen Corp?
Repligen, headquartered in Waltham, Massachusetts, is a global life sciences company that develops and sells bioprocessing equipment and supplies used in the manufacturing of biologic drugs, including monoclonal antibodies, recombinant proteins, vaccines, and cell and gene therapies.