OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

S $20.00 Call

S270319C00020000

Latest saved OI3,879Oct 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 $20.00 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. 7,6023,8010 2026-10-02: 7,602 OI2026-10-05: 5,598 OI2026-10-06: 3,867 OI2026-10-07: 3,866 OI2026-10-08: 3,866 OI2026-10-09: 3,876 OI2026-10-13: 3,876 OI2026-10-14: 3,876 OI2026-10-15: 3,878 OI2026-10-16: 3,880 OI2026-10-21: 3,879 OI2026-10-23: 3,879 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, 2026Viewing3,8790
Oct 21, 20263,879-1
Oct 16, 20263,880+2
Oct 15, 20263,878+2
Oct 14, 20263,8760
Oct 13, 20263,8760
Oct 09, 20263,876+10
Oct 08, 20263,8660
Oct 07, 20263,866-1
Oct 06, 20263,867-1,731
Oct 05, 20265,598-2,004
Oct 02, 20267,602No prior observation