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Contract OI history

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Jun 17, 2027 EXPIRATION

TSM $320.00 Put

TSM270617P00320000

Latest saved OI3,649Oct 23, 2026
Last change+18vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $320.00 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. 3,6491,8240 2026-10-02: 3,441 OI2026-10-05: 3,443 OI2026-10-06: 3,446 OI2026-10-07: 3,447 OI2026-10-08: 3,447 OI2026-10-09: 3,447 OI2026-10-14: 3,548 OI2026-10-15: 3,547 OI2026-10-16: 3,545 OI2026-10-21: 3,631 OI2026-10-23: 3,649 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, 2026Viewing3,649+18
Oct 21, 20263,631+86
Oct 16, 20263,545-2
Oct 15, 20263,547-1
Oct 14, 20263,548+101
Oct 09, 20263,4470
Oct 08, 20263,4470
Oct 07, 20263,447+1
Oct 06, 20263,446+3
Oct 05, 20263,443+2
Oct 02, 20263,441No prior observation