Date: November 9th, 2025 10:51 AM
Author: ''"'''"''"''''"''
United Airlines (UAL) — Chicago Board Options Exchange (CBOE)
On September 6, 2001, about 2,000 UAL put options traded, compared to an average of around 50–100 per day in prior weeks.
This is roughly a 20–40× increase over baseline volume.
However:
A single institutional investor accounted for a large portion.
The investor also bought other transportation-sector options, consistent with their typical trading pattern.
(http://www.autoadmit.com/thread.php?thread_id=5795214&forum_id=2/#49414064)