OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CAL $12.50 Call

CAL261218C00012500

Latest saved OI102Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAL $12.50 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 104520 2026-10-02: 98 OI2026-10-05: 98 OI2026-10-06: 98 OI2026-10-07: 98 OI2026-10-08: 98 OI2026-10-09: 98 OI2026-10-13: 98 OI2026-10-14: 104 OI2026-10-16: 104 OI2026-10-20: 102 OI2026-10-23: 102 OI Oct 02, 2026Oct 23, 2026

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

CAL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1020
Oct 20, 2026102-2
Oct 16, 20261040
Oct 14, 2026104+6
Oct 13, 2026980
Oct 09, 2026980
Oct 08, 2026980
Oct 07, 2026980
Oct 06, 2026980
Oct 05, 2026980
Oct 02, 202698No prior observation