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Contract OI history

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Dec 18, 2026 EXPIRATION

PTRN $17.50 Call

PTRN261218C00017500

Latest saved OI140Oct 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 $17.50 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. 140700 2026-10-08: 138 OI2026-10-09: 138 OI2026-10-13: 138 OI2026-10-14: 138 OI2026-10-16: 138 OI2026-10-20: 140 OI2026-10-23: 140 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, 20261400
Oct 20, 2026Viewing140+2
Oct 16, 20261380
Oct 14, 20261380
Oct 13, 20261380
Oct 09, 20261380
Oct 08, 2026138No prior observation