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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $375.00 Put

TSM261023P00375000

Latest saved OI2,845Oct 23, 2026
Last change-1,126vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $375.00 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. 3,9711,9850 2026-10-02: 3,560 OI2026-10-05: 3,555 OI2026-10-06: 3,508 OI2026-10-07: 3,493 OI2026-10-08: 3,493 OI2026-10-09: 3,498 OI2026-10-14: 3,509 OI2026-10-15: 3,516 OI2026-10-16: 3,704 OI2026-10-21: 3,971 OI2026-10-23: 2,845 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, 2026Viewing2,845-1,126
Oct 21, 20263,971+267
Oct 16, 20263,704+188
Oct 15, 20263,516+7
Oct 14, 20263,509+11
Oct 09, 20263,498+5
Oct 08, 20263,4930
Oct 07, 20263,493-15
Oct 06, 20263,508-47
Oct 05, 20263,555-5
Oct 02, 20263,560No prior observation