OITracker Cboe delayed data

Contract OI history

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Nov 27, 2026 EXPIRATION

PSX $290.00 Put

PSX261127P00290000

Latest saved OI4Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $290.00 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 420 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 2 OI2026-10-16: 4 OI2026-10-21: 4 OI2026-10-23: 4 OI Oct 08, 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, 2026Viewing40
Oct 21, 202640
Oct 16, 20264+2
Oct 15, 20262+1
Oct 14, 202610
Oct 13, 20261+1
Oct 09, 202600
Oct 08, 20260No prior observation