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Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $210.00 Put

PSX261218P00210000

Latest saved OI367Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $210.00 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. 3681840 2026-10-02: 363 OI2026-10-05: 364 OI2026-10-06: 365 OI2026-10-07: 366 OI2026-10-08: 366 OI2026-10-09: 366 OI2026-10-13: 368 OI2026-10-14: 368 OI2026-10-15: 367 OI2026-10-16: 367 OI2026-10-21: 367 OI2026-10-23: 367 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, 2026Viewing3670
Oct 21, 20263670
Oct 16, 20263670
Oct 15, 2026367-1
Oct 14, 20263680
Oct 13, 2026368+2
Oct 09, 20263660
Oct 08, 20263660
Oct 07, 2026366+1
Oct 06, 2026365+1
Oct 05, 2026364+1
Oct 02, 2026363No prior observation