Option activity is usually called unusual when a contract trades much more volume than its open interest, which can mean traders are opening new positions.

On Nov 4, 2026, Insulet options traded 1.75K contracts against 13.55K open, a volume to open interest ratio of 0.13, well above its 20-day average. The table above lists the contracts with the highest ratios.

Calls made up 38.7% of Insulet option volume on Nov 4, 2026, a put/call ratio of 1.59, so puts outnumber calls. The PODD option volume chart shows calls and puts by strike.

Insulet was founded in 2000 with the goal of making continuous subcutaneous insulin infusion therapy for diabetes easier to use.