OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

S $23.50 Call

S261030C00023500

Latest saved OI73Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $23.50 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. 73360 2026-10-02: 40 OI2026-10-05: 38 OI2026-10-06: 38 OI2026-10-07: 38 OI2026-10-08: 38 OI2026-10-09: 38 OI2026-10-13: 39 OI2026-10-14: 39 OI2026-10-15: 42 OI2026-10-16: 43 OI2026-10-21: 65 OI2026-10-23: 73 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, 2026Viewing73+8
Oct 21, 202665+22
Oct 16, 202643+1
Oct 15, 202642+3
Oct 14, 2026390
Oct 13, 202639+1
Oct 09, 2026380
Oct 08, 2026380
Oct 07, 2026380
Oct 06, 2026380
Oct 05, 202638-2
Oct 02, 202640No prior observation