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Contract OI history

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Nov 20, 2026 EXPIRATION

PSX $220.00 Put

PSX261120P00220000

Latest saved OI1,074Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $220.00 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. 1,1325660 2026-10-02: 1,121 OI2026-10-05: 1,120 OI2026-10-06: 1,132 OI2026-10-07: 1,129 OI2026-10-08: 1,125 OI2026-10-09: 1,090 OI2026-10-13: 1,075 OI2026-10-14: 1,075 OI2026-10-15: 1,075 OI2026-10-16: 1,075 OI2026-10-21: 1,073 OI2026-10-23: 1,074 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, 2026Viewing1,074+1
Oct 21, 20261,073-2
Oct 16, 20261,0750
Oct 15, 20261,0750
Oct 14, 20261,0750
Oct 13, 20261,075-15
Oct 09, 20261,090-35
Oct 08, 20261,125-4
Oct 07, 20261,129-3
Oct 06, 20261,132+12
Oct 05, 20261,120-1
Oct 02, 20261,121No prior observation