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Contract OI history

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Dec 18, 2026 EXPIRATION

OPK $1000.00 Put

OPK261218P00001000

Latest saved OI122Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
OPK $1000.00 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. 122610 2026-10-08: 109 OI2026-10-09: 109 OI2026-10-13: 109 OI2026-10-14: 109 OI2026-10-16: 109 OI2026-10-20: 119 OI2026-10-23: 122 OI Oct 08, 2026Oct 23, 2026

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

OPK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026122+3
Oct 20, 2026Viewing119+10
Oct 16, 20261090
Oct 14, 20261090
Oct 13, 20261090
Oct 09, 20261090
Oct 08, 2026109No prior observation