OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

S $31.00 Call

S261218C00031000

Latest saved OI36Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $31.00 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. 37180 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 4 OI2026-10-09: 35 OI2026-10-13: 37 OI2026-10-14: 37 OI2026-10-15: 37 OI2026-10-16: 37 OI2026-10-21: 36 OI2026-10-23: 36 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, 2026Viewing360
Oct 21, 202636-1
Oct 16, 2026370
Oct 15, 2026370
Oct 14, 2026370
Oct 13, 202637+2
Oct 09, 202635+31
Oct 08, 202640
Oct 07, 202640
Oct 06, 20264+4
Oct 05, 202600
Oct 02, 20260No prior observation