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Contract OI history

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Apr 16, 2027 EXPIRATION

PTC $180.00 Put

PTC270416P00180000

Latest saved OI356Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PTC $180.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3561780 2026-10-09: 204 OI2026-10-13: 354 OI2026-10-14: 354 OI2026-10-15: 355 OI2026-10-16: 355 OI2026-10-21: 355 OI2026-10-23: 356 OI Oct 09, 2026Oct 23, 2026

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

PTC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026356+1
Oct 21, 2026Viewing3550
Oct 16, 20263550
Oct 15, 2026355+1
Oct 14, 20263540
Oct 13, 2026354+150
Oct 09, 2026204No prior observation