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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $450.00 Put

TSM261218P00450000

Latest saved OI3,084Oct 23, 2026
Last change+7vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $450.00 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. 3,0881,5440 2026-10-02: 1,840 OI2026-10-05: 1,904 OI2026-10-06: 2,283 OI2026-10-07: 2,893 OI2026-10-08: 2,893 OI2026-10-09: 2,944 OI2026-10-14: 2,936 OI2026-10-15: 2,943 OI2026-10-16: 3,088 OI2026-10-21: 3,077 OI2026-10-23: 3,084 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, 2026Viewing3,084+7
Oct 21, 20263,077-11
Oct 16, 20263,088+145
Oct 15, 20262,943+7
Oct 14, 20262,936-8
Oct 09, 20262,944+51
Oct 08, 20262,8930
Oct 07, 20262,893+610
Oct 06, 20262,283+379
Oct 05, 20261,904+64
Oct 02, 20261,840No prior observation