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Contract OI history

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Dec 18, 2026 EXPIRATION

CLS $270.00 Put

CLS261218P00270000

Latest saved OI211Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $270.00 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. 2111050 2026-10-02: 155 OI2026-10-05: 164 OI2026-10-06: 163 OI2026-10-07: 163 OI2026-10-08: 165 OI2026-10-09: 166 OI2026-10-13: 170 OI2026-10-14: 170 OI2026-10-15: 184 OI2026-10-16: 199 OI2026-10-21: 202 OI2026-10-23: 211 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, 2026Viewing211+9
Oct 21, 2026202+3
Oct 16, 2026199+15
Oct 15, 2026184+14
Oct 14, 20261700
Oct 13, 2026170+4
Oct 09, 2026166+1
Oct 08, 2026165+2
Oct 07, 20261630
Oct 06, 2026163-1
Oct 05, 2026164+9
Oct 02, 2026155No prior observation