OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

S $25.00 Call

S261218C00025000

Latest saved OI8,759Oct 23, 2026
Last change-6vs 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. 13,9126,9560 2026-10-02: 13,912 OI2026-10-05: 13,878 OI2026-10-06: 13,839 OI2026-10-07: 13,826 OI2026-10-08: 13,826 OI2026-10-09: 13,755 OI2026-10-13: 13,724 OI2026-10-14: 13,724 OI2026-10-15: 13,776 OI2026-10-16: 13,813 OI2026-10-21: 8,765 OI2026-10-23: 8,759 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, 2026Viewing8,759-6
Oct 21, 20268,765-5,048
Oct 16, 202613,813+37
Oct 15, 202613,776+52
Oct 14, 202613,7240
Oct 13, 202613,724-31
Oct 09, 202613,755-71
Oct 08, 202613,8260
Oct 07, 202613,826-13
Oct 06, 202613,839-39
Oct 05, 202613,878-34
Oct 02, 202613,912No prior observation