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Contract OI history

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Nov 20, 2026 EXPIRATION

PSX $250.00 Put

PSX261120P00250000

Latest saved OI366Oct 23, 2026
Last change+22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $250.00 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. 3661830 2026-10-02: 254 OI2026-10-05: 268 OI2026-10-06: 268 OI2026-10-07: 268 OI2026-10-08: 283 OI2026-10-09: 297 OI2026-10-13: 324 OI2026-10-14: 324 OI2026-10-15: 325 OI2026-10-16: 322 OI2026-10-21: 344 OI2026-10-23: 366 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, 2026Viewing366+22
Oct 21, 2026344+22
Oct 16, 2026322-3
Oct 15, 2026325+1
Oct 14, 20263240
Oct 13, 2026324+27
Oct 09, 2026297+14
Oct 08, 2026283+15
Oct 07, 20262680
Oct 06, 20262680
Oct 05, 2026268+14
Oct 02, 2026254No prior observation