OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

S $25.00 Call

S270319C00025000

Latest saved OI490Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $25.00 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. 4902450 2026-10-02: 403 OI2026-10-05: 402 OI2026-10-06: 461 OI2026-10-07: 461 OI2026-10-08: 461 OI2026-10-09: 451 OI2026-10-13: 470 OI2026-10-14: 470 OI2026-10-15: 469 OI2026-10-16: 469 OI2026-10-21: 480 OI2026-10-23: 490 OI Oct 02, 2026Oct 23, 2026

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

S contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing490+10
Oct 21, 2026480+11
Oct 16, 20264690
Oct 15, 2026469-1
Oct 14, 20264700
Oct 13, 2026470+19
Oct 09, 2026451-10
Oct 08, 20264610
Oct 07, 20264610
Oct 06, 2026461+59
Oct 05, 2026402-1
Oct 02, 2026403No prior observation