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Contract OI history

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Oct 23, 2026 EXPIRATION

PSX $255.00 Put

PSX261023P00255000

Latest saved OI37Oct 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 $255.00 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. 45220 2026-10-02: 20 OI2026-10-05: 22 OI2026-10-06: 25 OI2026-10-07: 43 OI2026-10-08: 43 OI2026-10-09: 41 OI2026-10-13: 45 OI2026-10-14: 45 OI2026-10-15: 45 OI2026-10-16: 41 OI2026-10-21: 37 OI2026-10-23: 37 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, 2026Viewing370
Oct 21, 202637-4
Oct 16, 202641-4
Oct 15, 2026450
Oct 14, 2026450
Oct 13, 202645+4
Oct 09, 202641-2
Oct 08, 2026430
Oct 07, 202643+18
Oct 06, 202625+3
Oct 05, 202622+2
Oct 02, 202620No prior observation