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Contract OI history

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Nov 20, 2026 EXPIRATION

CLS $340.00 Put

CLS261120P00340000

Latest saved OI370Oct 23, 2026
Last change-139vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $340.00 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. 5122560 2026-10-02: 180 OI2026-10-05: 188 OI2026-10-06: 466 OI2026-10-07: 469 OI2026-10-08: 477 OI2026-10-09: 491 OI2026-10-13: 507 OI2026-10-14: 507 OI2026-10-15: 512 OI2026-10-16: 508 OI2026-10-21: 509 OI2026-10-23: 370 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, 2026Viewing370-139
Oct 21, 2026509+1
Oct 16, 2026508-4
Oct 15, 2026512+5
Oct 14, 20265070
Oct 13, 2026507+16
Oct 09, 2026491+14
Oct 08, 2026477+8
Oct 07, 2026469+3
Oct 06, 2026466+278
Oct 05, 2026188+8
Oct 02, 2026180No prior observation