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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $350.00 Put

TSM261023P00350000

Latest saved OI441Oct 23, 2026
Last change+35vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $350.00 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. 4412200 2026-10-02: 325 OI2026-10-05: 318 OI2026-10-06: 318 OI2026-10-07: 319 OI2026-10-08: 319 OI2026-10-09: 323 OI2026-10-14: 324 OI2026-10-15: 332 OI2026-10-16: 311 OI2026-10-21: 406 OI2026-10-23: 441 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, 2026Viewing441+35
Oct 21, 2026406+95
Oct 16, 2026311-21
Oct 15, 2026332+8
Oct 14, 2026324+1
Oct 09, 2026323+4
Oct 08, 20263190
Oct 07, 2026319+1
Oct 06, 20263180
Oct 05, 2026318-7
Oct 02, 2026325No prior observation