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, Kirby options traded 20 contracts against 574 open, a volume to open interest ratio of 0.03, well above its 20-day average. The table above lists the contracts with the highest ratios.

Calls made up 15.0% of Kirby option volume on Nov 4, 2026, a put/call ratio of 5.67, so puts outnumber calls. The KEX option volume chart shows calls and puts by strike.

Kirby Corp is a domestic tank barge operator, transporting bulk liquid products throughout three United States coasts.