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Contract OI history

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Dec 18, 2026 EXPIRATION

PTCT $85.00 Call

PTCT261218C00085000

Latest saved OI319Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PTCT $85.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 3191590 2026-10-08: 319 OI2026-10-09: 319 OI2026-10-13: 319 OI2026-10-14: 319 OI2026-10-16: 319 OI2026-10-20: 319 OI2026-10-23: 319 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PTCT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263190
Oct 20, 2026Viewing3190
Oct 16, 20263190
Oct 14, 20263190
Oct 13, 20263190
Oct 09, 20263190
Oct 08, 2026319No prior observation