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Contract OI history

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Nov 20, 2026 EXPIRATION

OPCH $32.50 Call

OPCH261120C00032500

Latest saved OI1,094Oct 23, 2026
Last change+163vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPCH $32.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0945470 2026-10-09: 299 OI2026-10-13: 602 OI2026-10-14: 643 OI2026-10-15: 683 OI2026-10-16: 683 OI2026-10-21: 931 OI2026-10-23: 1,094 OI Oct 09, 2026Oct 23, 2026

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

OPCH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,094+163
Oct 21, 2026931+248
Oct 16, 20266830
Oct 15, 2026683+40
Oct 14, 2026643+41
Oct 13, 2026602+303
Oct 09, 2026299No prior observation