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Contract OI history

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Dec 18, 2026 EXPIRATION

PTRN $20.00 Put

PTRN261218P00020000

Latest saved OI64Oct 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 $20.00 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. 64320 2026-10-08: 64 OI2026-10-09: 64 OI2026-10-13: 64 OI2026-10-14: 64 OI2026-10-16: 64 OI2026-10-20: 64 OI2026-10-23: 64 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, 2026640
Oct 20, 2026Viewing640
Oct 16, 2026640
Oct 14, 2026640
Oct 13, 2026640
Oct 09, 2026640
Oct 08, 202664No prior observation