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Contract OI history

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Nov 20, 2026 EXPIRATION

PSX $240.00 Put

PSX261120P00240000

Latest saved OI239Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $240.00 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. 2391190 2026-10-02: 195 OI2026-10-05: 192 OI2026-10-06: 201 OI2026-10-07: 201 OI2026-10-08: 210 OI2026-10-09: 212 OI2026-10-13: 232 OI2026-10-14: 232 OI2026-10-15: 232 OI2026-10-16: 232 OI2026-10-21: 232 OI2026-10-23: 239 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, 2026Viewing239+7
Oct 21, 20262320
Oct 16, 20262320
Oct 15, 20262320
Oct 14, 20262320
Oct 13, 2026232+20
Oct 09, 2026212+2
Oct 08, 2026210+9
Oct 07, 20262010
Oct 06, 2026201+9
Oct 05, 2026192-3
Oct 02, 2026195No prior observation