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Contract OI history

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Feb 19, 2027 EXPIRATION

TSM $340.00 Put

TSM270219P00340000

Latest saved OI1,213Oct 23, 2026
Last change+173vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $340.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,2136060 2026-10-02: 764 OI2026-10-05: 764 OI2026-10-06: 799 OI2026-10-07: 799 OI2026-10-08: 799 OI2026-10-09: 791 OI2026-10-14: 791 OI2026-10-15: 789 OI2026-10-16: 1,027 OI2026-10-21: 1,040 OI2026-10-23: 1,213 OI Oct 02, 2026Oct 23, 2026

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

TSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,213+173
Oct 21, 20261,040+13
Oct 16, 20261,027+238
Oct 15, 2026789-2
Oct 14, 20267910
Oct 09, 2026791-8
Oct 08, 20267990
Oct 07, 20267990
Oct 06, 2026799+35
Oct 05, 20267640
Oct 02, 2026764No prior observation