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Contract OI history

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Dec 18, 2026 EXPIRATION

CI $340.00 Call

CI261218C00340000

Latest saved OI203Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $340.00 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. 2031010 2026-10-02: 169 OI2026-10-05: 170 OI2026-10-06: 170 OI2026-10-07: 170 OI2026-10-08: 170 OI2026-10-09: 170 OI2026-10-13: 171 OI2026-10-14: 172 OI2026-10-15: 173 OI2026-10-16: 175 OI2026-10-21: 186 OI2026-10-23: 203 OI Oct 02, 2026Oct 23, 2026

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

CI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing203+17
Oct 21, 2026186+11
Oct 16, 2026175+2
Oct 15, 2026173+1
Oct 14, 2026172+1
Oct 13, 2026171+1
Oct 09, 20261700
Oct 08, 20261700
Oct 07, 20261700
Oct 06, 20261700
Oct 05, 2026170+1
Oct 02, 2026169No prior observation