Repligen Corp (RGEN) options traded 49 contracts on Nov 4, 2026, well below the 20-day average of 514. Calls made up 44.9% of the volume, a put/call ratio of 1.23.
Option Volume by Strike
Showing results for RGEN, 2026-11-20(m), calls & puts
Option Volume Stats
Showing results for RGEN, 2026-11-20(m), calls & puts
| Call Volume | |
|---|---|
| Put Volume | |
| Volume Total | |
| Put-Call Volume Ratio |
Highest Volume Options
Showing results for RGEN, 2026-11-20(m), calls & puts
Option Volume Total by Expiry
Showing results for RGEN, 2026-11-20(m), calls & puts. View all expiries
Option Volume History
Showing daily totals for RGEN, all expirations, calls & puts. View full history
RGEN Option Volume FAQ
What is option volume?
Option volume is the number of option contracts traded during a session. It resets at the start of each trading day.
How many RGEN options traded on Nov 4, 2026?
22 calls and 27 puts traded on Nov 4, 2026, 49 contracts in total.
Is RGEN option volume higher than usual?
Volume on Nov 4, 2026 was well below the 20-day average of 514 contracts. The busiest of the last 20 sessions was Oct 16, 2026, with 3.55K contracts. The 30-day average is 519. See the RGEN option volume history for a longer view.
What is the RGEN put/call volume ratio?
The Repligen put/call volume ratio was 1.23 on Nov 4, 2026. Over the last 20 sessions it averaged 5.75, so puts outnumber calls over that stretch.
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.