OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

PSX $210.00 Put

PSX261120P00210000

Latest saved OI2,427Oct 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 $210.00 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. 2,4271,2130 2026-10-02: 2,392 OI2026-10-05: 2,401 OI2026-10-06: 2,417 OI2026-10-07: 2,417 OI2026-10-08: 2,413 OI2026-10-09: 2,420 OI2026-10-13: 2,424 OI2026-10-14: 2,424 OI2026-10-15: 2,419 OI2026-10-16: 2,422 OI2026-10-21: 2,426 OI2026-10-23: 2,427 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, 2026Viewing2,427+1
Oct 21, 20262,426+4
Oct 16, 20262,422+3
Oct 15, 20262,419-5
Oct 14, 20262,4240
Oct 13, 20262,424+4
Oct 09, 20262,420+7
Oct 08, 20262,413-4
Oct 07, 20262,4170
Oct 06, 20262,417+16
Oct 05, 20262,401+9
Oct 02, 20262,392No prior observation