OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

PSX $190.00 Put

PSX280121P00190000

Latest saved OI182Oct 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 $190.00 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. 183910 2026-10-02: 183 OI2026-10-05: 183 OI2026-10-06: 183 OI2026-10-07: 183 OI2026-10-08: 183 OI2026-10-09: 183 OI2026-10-13: 183 OI2026-10-14: 183 OI2026-10-15: 183 OI2026-10-16: 183 OI2026-10-21: 182 OI2026-10-23: 182 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, 2026Viewing1820
Oct 21, 2026182-1
Oct 16, 20261830
Oct 15, 20261830
Oct 14, 20261830
Oct 13, 20261830
Oct 09, 20261830
Oct 08, 20261830
Oct 07, 20261830
Oct 06, 20261830
Oct 05, 20261830
Oct 02, 2026183No prior observation