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Contract OI history

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Dec 18, 2026 EXPIRATION

CLS $220.00 Put

CLS261218P00220000

Latest saved OI290Oct 23, 2026
Last change+102vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $220.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2901450 2026-10-02: 185 OI2026-10-05: 183 OI2026-10-06: 183 OI2026-10-07: 195 OI2026-10-08: 195 OI2026-10-09: 195 OI2026-10-13: 186 OI2026-10-14: 186 OI2026-10-15: 183 OI2026-10-16: 184 OI2026-10-21: 188 OI2026-10-23: 290 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, 2026Viewing290+102
Oct 21, 2026188+4
Oct 16, 2026184+1
Oct 15, 2026183-3
Oct 14, 20261860
Oct 13, 2026186-9
Oct 09, 20261950
Oct 08, 20261950
Oct 07, 2026195+12
Oct 06, 20261830
Oct 05, 2026183-2
Oct 02, 2026185No prior observation