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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $440.00 Put

TSM261023P00440000

Latest saved OI15Oct 23, 2026
Last change-909vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $440.00 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. 9884940 2026-10-02: 146 OI2026-10-05: 189 OI2026-10-06: 474 OI2026-10-07: 480 OI2026-10-08: 480 OI2026-10-09: 525 OI2026-10-14: 635 OI2026-10-15: 915 OI2026-10-16: 988 OI2026-10-21: 924 OI2026-10-23: 15 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, 2026Viewing15-909
Oct 21, 2026924-64
Oct 16, 2026988+73
Oct 15, 2026915+280
Oct 14, 2026635+110
Oct 09, 2026525+45
Oct 08, 20264800
Oct 07, 2026480+6
Oct 06, 2026474+285
Oct 05, 2026189+43
Oct 02, 2026146No prior observation