OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $260.00 Put

PSX261218P00260000

Latest saved OI356Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $260.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3601800 2026-10-02: 326 OI2026-10-05: 330 OI2026-10-06: 330 OI2026-10-07: 331 OI2026-10-08: 334 OI2026-10-09: 339 OI2026-10-13: 346 OI2026-10-14: 346 OI2026-10-15: 345 OI2026-10-16: 351 OI2026-10-21: 360 OI2026-10-23: 356 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, 2026Viewing356-4
Oct 21, 2026360+9
Oct 16, 2026351+6
Oct 15, 2026345-1
Oct 14, 20263460
Oct 13, 2026346+7
Oct 09, 2026339+5
Oct 08, 2026334+3
Oct 07, 2026331+1
Oct 06, 20263300
Oct 05, 2026330+4
Oct 02, 2026326No prior observation