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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $175.00 Put

TSM261218P00175000

Latest saved OI1,483Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $175.00 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. 1,4907450 2026-10-02: 1,483 OI2026-10-05: 1,483 OI2026-10-06: 1,485 OI2026-10-07: 1,486 OI2026-10-08: 1,486 OI2026-10-09: 1,484 OI2026-10-14: 1,484 OI2026-10-15: 1,490 OI2026-10-16: 1,490 OI2026-10-21: 1,484 OI2026-10-23: 1,483 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, 2026Viewing1,483-1
Oct 21, 20261,484-6
Oct 16, 20261,4900
Oct 15, 20261,490+6
Oct 14, 20261,4840
Oct 09, 20261,484-2
Oct 08, 20261,4860
Oct 07, 20261,486+1
Oct 06, 20261,485+2
Oct 05, 20261,4830
Oct 02, 20261,483No prior observation