OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

SM $22.50 Call

SM261218C00022500

Latest saved OI1,707Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SM $22.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7248620 2026-10-02: 1,724 OI2026-10-05: 1,714 OI2026-10-07: 1,714 OI2026-10-08: 1,714 OI2026-10-09: 1,714 OI2026-10-13: 1,714 OI2026-10-15: 1,714 OI2026-10-16: 1,714 OI2026-10-21: 1,707 OI2026-10-23: 1,707 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,7070
Oct 21, 2026Viewing1,707-7
Oct 16, 20261,7140
Oct 15, 20261,7140
Oct 13, 20261,7140
Oct 09, 20261,7140
Oct 08, 20261,7140
Oct 07, 20261,7140
Oct 05, 20261,714-10
Oct 02, 20261,724No prior observation