OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

PSA $250.00 Put

PSA261120P00250000

Latest saved OI188Oct 23, 2026
Last change+15vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSA $250.00 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. 188940 2026-10-02: 93 OI2026-10-05: 93 OI2026-10-06: 108 OI2026-10-07: 119 OI2026-10-08: 120 OI2026-10-09: 120 OI2026-10-13: 120 OI2026-10-14: 120 OI2026-10-15: 120 OI2026-10-16: 120 OI2026-10-21: 173 OI2026-10-23: 188 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PSA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing188+15
Oct 21, 2026173+53
Oct 16, 20261200
Oct 15, 20261200
Oct 14, 20261200
Oct 13, 20261200
Oct 09, 20261200
Oct 08, 2026120+1
Oct 07, 2026119+11
Oct 06, 2026108+15
Oct 05, 2026930
Oct 02, 202693No prior observation