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Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $200.00 Put

PSX261218P00200000

Latest saved OI261Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $200.00 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. 2611300 2026-10-02: 193 OI2026-10-05: 193 OI2026-10-06: 193 OI2026-10-07: 191 OI2026-10-08: 197 OI2026-10-09: 197 OI2026-10-13: 241 OI2026-10-14: 241 OI2026-10-15: 251 OI2026-10-16: 250 OI2026-10-21: 251 OI2026-10-23: 261 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, 2026Viewing261+10
Oct 21, 2026251+1
Oct 16, 2026250-1
Oct 15, 2026251+10
Oct 14, 20262410
Oct 13, 2026241+44
Oct 09, 20261970
Oct 08, 2026197+6
Oct 07, 2026191-2
Oct 06, 20261930
Oct 05, 20261930
Oct 02, 2026193No prior observation