Keith Gill, also known as the "Roaring Kitty," reportedly owned call options in GameStop Corp. The specific options mentioned in the context are the GameStop $20 calls expiring on June 21. These options give Gill the right to purchase GameStop shares at $20 apiece by the set expiration date.
On Thursday morning, the trading pattern for the GameStop $20 calls experienced a surge in volume, with most large transactions occurring at or near the bid, indicating selling pressure. This followed a significant increase in volume on Wednesday, where the contract became the most-active option. By midday on Thursday, the number of outstanding contracts had dropped 34% to 111,818, which was fewer than the 120,000 that Keith Gill, known online as 'Roaring Kitty,' had claimed to have bought in a social media post earlier in the month.
The number of outstanding GameStop call options decreased by 34% through Wednesday's session.