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Contract OI history

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Dec 18, 2026 EXPIRATION

PTRN $22.50 Put

PTRN261218P00022500

Latest saved OI460Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PTRN $22.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4602300 2026-10-08: 460 OI2026-10-09: 460 OI2026-10-13: 460 OI2026-10-14: 460 OI2026-10-16: 460 OI2026-10-20: 460 OI2026-10-23: 460 OI Oct 08, 2026Oct 23, 2026

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

PTRN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264600
Oct 20, 2026Viewing4600
Oct 16, 20264600
Oct 14, 20264600
Oct 13, 20264600
Oct 09, 20264600
Oct 08, 2026460No prior observation