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, Lithium Americas options traded 12.97K contracts against 357.84K open, a volume to open interest ratio of 0.04, well above its 20-day average. The table above lists the contracts with the highest ratios.

Calls made up 85.5% of Lithium Americas option volume on Nov 4, 2026, a put/call ratio of 0.17, so calls outnumber puts. The LAC option volume chart shows calls and puts by strike.

Lithium Americas Corp is a Canadian-based resource and materials company focused on developing, building and operating lithium deposits and chemical processing facilities.