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Contract OI history

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Jan 15, 2027 EXPIRATION

TSM $440.00 Put

TSM270115P00440000

Latest saved OI2,094Oct 23, 2026
Last change-186vs 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. 2,2801,1400 2026-10-02: 979 OI2026-10-05: 1,039 OI2026-10-06: 1,381 OI2026-10-07: 1,403 OI2026-10-08: 1,403 OI2026-10-09: 1,547 OI2026-10-14: 2,001 OI2026-10-15: 2,065 OI2026-10-16: 2,098 OI2026-10-21: 2,280 OI2026-10-23: 2,094 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, 2026Viewing2,094-186
Oct 21, 20262,280+182
Oct 16, 20262,098+33
Oct 15, 20262,065+64
Oct 14, 20262,001+454
Oct 09, 20261,547+144
Oct 08, 20261,4030
Oct 07, 20261,403+22
Oct 06, 20261,381+342
Oct 05, 20261,039+60
Oct 02, 2026979No prior observation