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Contract OI history

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Oct 23, 2026 EXPIRATION

PSX $270.00 Put

PSX261023P00270000

Latest saved OI318Oct 23, 2026
Last change-184vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $270.00 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. 5022510 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 6 OI2026-10-09: 12 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-15: 119 OI2026-10-16: 165 OI2026-10-21: 502 OI2026-10-23: 318 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, 2026Viewing318-184
Oct 21, 2026502+337
Oct 16, 2026165+46
Oct 15, 2026119+100
Oct 14, 2026190
Oct 13, 202619+7
Oct 09, 202612+6
Oct 08, 202660
Oct 07, 202660
Oct 06, 20266+3
Oct 05, 202630
Oct 02, 20263No prior observation