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Contract OI history

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Dec 18, 2026 EXPIRATION

CLS $400.00 Call

CLS261218C00400000

Latest saved OI1,638Oct 23, 2026
Last change+201vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $400.00 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. 1,6388190 2026-10-02: 1,303 OI2026-10-05: 1,244 OI2026-10-06: 1,216 OI2026-10-07: 1,233 OI2026-10-08: 1,239 OI2026-10-09: 1,241 OI2026-10-13: 1,235 OI2026-10-14: 1,235 OI2026-10-15: 1,276 OI2026-10-16: 1,357 OI2026-10-21: 1,437 OI2026-10-23: 1,638 OI Oct 02, 2026Oct 23, 2026

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

CLS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,638+201
Oct 21, 20261,437+80
Oct 16, 20261,357+81
Oct 15, 20261,276+41
Oct 14, 20261,2350
Oct 13, 20261,235-6
Oct 09, 20261,241+2
Oct 08, 20261,239+6
Oct 07, 20261,233+17
Oct 06, 20261,216-28
Oct 05, 20261,244-59
Oct 02, 20261,303No prior observation