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Contract OI history

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Oct 23, 2026 EXPIRATION

PSX $252.50 Put

PSX261023P00252500

Latest saved OI31Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 05, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $252.50 put open interest history 11 saved observations from 2026-10-05 to 2026-10-23. Exact values and changes are listed in the table below. 31150 2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 17 OI2026-10-08: 17 OI2026-10-09: 18 OI2026-10-13: 21 OI2026-10-14: 21 OI2026-10-15: 21 OI2026-10-16: 31 OI2026-10-21: 31 OI2026-10-23: 31 OI Oct 05, 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, 2026Viewing310
Oct 21, 2026310
Oct 16, 202631+10
Oct 15, 2026210
Oct 14, 2026210
Oct 13, 202621+3
Oct 09, 202618+1
Oct 08, 2026170
Oct 07, 202617+17
Oct 06, 202600
Oct 05, 20260No prior observation