OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $290.00 Call

PSX261218C00290000

Latest saved OI1,028Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $290.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0315150 2026-10-02: 655 OI2026-10-05: 655 OI2026-10-06: 754 OI2026-10-07: 814 OI2026-10-08: 814 OI2026-10-09: 844 OI2026-10-13: 965 OI2026-10-14: 965 OI2026-10-15: 975 OI2026-10-16: 997 OI2026-10-21: 1,031 OI2026-10-23: 1,028 OI Oct 02, 2026Oct 23, 2026

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

PSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,028-3
Oct 21, 20261,031+34
Oct 16, 2026997+22
Oct 15, 2026975+10
Oct 14, 20269650
Oct 13, 2026965+121
Oct 09, 2026844+30
Oct 08, 20268140
Oct 07, 2026814+60
Oct 06, 2026754+99
Oct 05, 20266550
Oct 02, 2026655No prior observation