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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $310.00 Put

TSM261218P00310000

Latest saved OI3,883Oct 23, 2026
Last change+50vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $310.00 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. 3,8831,9410 2026-10-02: 3,671 OI2026-10-05: 3,656 OI2026-10-06: 3,670 OI2026-10-07: 3,669 OI2026-10-08: 3,669 OI2026-10-09: 3,667 OI2026-10-14: 3,780 OI2026-10-15: 3,774 OI2026-10-16: 3,779 OI2026-10-21: 3,833 OI2026-10-23: 3,883 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, 2026Viewing3,883+50
Oct 21, 20263,833+54
Oct 16, 20263,779+5
Oct 15, 20263,774-6
Oct 14, 20263,780+113
Oct 09, 20263,667-2
Oct 08, 20263,6690
Oct 07, 20263,669-1
Oct 06, 20263,670+14
Oct 05, 20263,656-15
Oct 02, 20263,671No prior observation