OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $250.00 Call

PSX261218C00250000

Latest saved OI274Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSX $250.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2811400 2026-10-02: 267 OI2026-10-05: 266 OI2026-10-06: 266 OI2026-10-07: 266 OI2026-10-08: 267 OI2026-10-09: 281 OI2026-10-13: 277 OI2026-10-14: 277 OI2026-10-15: 277 OI2026-10-16: 276 OI2026-10-21: 276 OI2026-10-23: 274 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, 2026Viewing274-2
Oct 21, 20262760
Oct 16, 2026276-1
Oct 15, 20262770
Oct 14, 20262770
Oct 13, 2026277-4
Oct 09, 2026281+14
Oct 08, 2026267+1
Oct 07, 20262660
Oct 06, 20262660
Oct 05, 2026266-1
Oct 02, 2026267No prior observation