OITracker Cboe delayed data

Contract OI history

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Dec 15, 2028 EXPIRATION

S $20.00 Call

S281215C00020000

Latest saved OI31Oct 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. 32160 2026-10-02: 31 OI2026-10-05: 31 OI2026-10-06: 31 OI2026-10-07: 31 OI2026-10-08: 31 OI2026-10-09: 30 OI2026-10-13: 31 OI2026-10-14: 31 OI2026-10-15: 32 OI2026-10-16: 32 OI2026-10-21: 31 OI2026-10-23: 31 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, 2026Viewing310
Oct 21, 202631-1
Oct 16, 2026320
Oct 15, 202632+1
Oct 14, 2026310
Oct 13, 202631+1
Oct 09, 202630-1
Oct 08, 2026310
Oct 07, 2026310
Oct 06, 2026310
Oct 05, 2026310
Oct 02, 202631No prior observation