OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

PSX $280.00 Call

PSX261218C00280000

Latest saved OI1,254Oct 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 $280.00 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. 1,2576280 2026-10-02: 1,220 OI2026-10-05: 1,220 OI2026-10-06: 1,235 OI2026-10-07: 1,238 OI2026-10-08: 1,242 OI2026-10-09: 1,252 OI2026-10-13: 1,257 OI2026-10-14: 1,257 OI2026-10-15: 1,256 OI2026-10-16: 1,255 OI2026-10-21: 1,256 OI2026-10-23: 1,254 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, 2026Viewing1,254-2
Oct 21, 20261,256+1
Oct 16, 20261,255-1
Oct 15, 20261,256-1
Oct 14, 20261,2570
Oct 13, 20261,257+5
Oct 09, 20261,252+10
Oct 08, 20261,242+4
Oct 07, 20261,238+3
Oct 06, 20261,235+15
Oct 05, 20261,2200
Oct 02, 20261,220No prior observation