VST Unusual Option Activity
Vistra Corp (VST) option volume on Nov 4, 2026 was 22.6% of open interest, well above the 20-day average of 7.9%. Calls made up 51.3% of the volume. Relative to open interest, that was VST's most active day in 4 weeks.
VST Unusual Options FAQ
What makes option activity unusual?
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.
Is VST seeing unusual options activity?
On Nov 4, 2026, Vistra options traded 118.54K contracts against 524.07K open, a volume to open interest ratio of 0.23, well above its 20-day average. The table above lists the contracts with the highest ratios.
Are VST traders trading more calls or puts?
Calls made up 51.3% of Vistra option volume on Nov 4, 2026, a put/call ratio of 0.95, so calls and puts are about even. The VST option volume chart shows calls and puts by strike.
What is Vistra Corp?
Vistra Corp. is one of the largest power producers and retail energy providers in the US.