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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $430.00 Put

TSM261030P00430000

Latest saved OI1,303Oct 23, 2026
Last change+289vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $430.00 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. 1,3036510 2026-10-02: 271 OI2026-10-05: 413 OI2026-10-06: 489 OI2026-10-07: 490 OI2026-10-08: 490 OI2026-10-09: 851 OI2026-10-14: 863 OI2026-10-15: 884 OI2026-10-16: 896 OI2026-10-21: 1,014 OI2026-10-23: 1,303 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, 2026Viewing1,303+289
Oct 21, 20261,014+118
Oct 16, 2026896+12
Oct 15, 2026884+21
Oct 14, 2026863+12
Oct 09, 2026851+361
Oct 08, 20264900
Oct 07, 2026490+1
Oct 06, 2026489+76
Oct 05, 2026413+142
Oct 02, 2026271No prior observation