Bio-Rad Laboratories Inc.Class A (BIO) options traded 19 contracts on Nov 4, 2026, well below the 20-day average of 182. Calls made up 63.2% of the volume, a put/call ratio of 0.58.
Option Volume by Strike
Showing results for BIO, 2026-11-20(m), calls & puts
Option Volume Stats
Showing results for BIO, 2026-11-20(m), calls & puts
| Call Volume | |
|---|---|
| Put Volume | |
| Volume Total | |
| Put-Call Volume Ratio |
Highest Volume Options
Showing results for BIO, 2026-11-20(m), calls & puts
Option Volume Total by Expiry
Showing results for BIO, 2026-11-20(m), calls & puts. View all expiries
Option Volume History
Showing daily totals for BIO, all expirations, calls & puts. View full history
BIO 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 BIO options traded on Nov 4, 2026?
12 calls and 7 puts traded on Nov 4, 2026, 19 contracts in total.
Is BIO option volume higher than usual?
Volume on Nov 4, 2026 was well below the 20-day average of 182 contracts. The busiest of the last 20 sessions was Oct 8, 2026, with 1.51K contracts. The 30-day average is 181. See the BIO option volume history for a longer view.
What is the BIO put/call volume ratio?
The Bio-Rad Laboratories Inc.Class A put/call volume ratio was 0.58 on Nov 4, 2026. Over the last 20 sessions it averaged 0.43, so calls outnumber puts over that stretch.
What is Bio-Rad Laboratories Inc.Class A?
Bio-Rad Laboratories, headquartered in Hercules, California, develops, manufactures, and sells products and solutions for the clinical diagnostics and life sciences markets.