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Contract OI history

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Nov 13, 2026 EXPIRATION

TSM $400.00 Put

TSM261113P00400000

Latest saved OI545Oct 23, 2026
Last change-57vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $400.00 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. 6023010 2026-10-02: 52 OI2026-10-05: 56 OI2026-10-06: 65 OI2026-10-07: 87 OI2026-10-08: 87 OI2026-10-09: 166 OI2026-10-14: 223 OI2026-10-15: 310 OI2026-10-16: 575 OI2026-10-21: 602 OI2026-10-23: 545 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, 2026Viewing545-57
Oct 21, 2026602+27
Oct 16, 2026575+265
Oct 15, 2026310+87
Oct 14, 2026223+57
Oct 09, 2026166+79
Oct 08, 2026870
Oct 07, 202687+22
Oct 06, 202665+9
Oct 05, 202656+4
Oct 02, 202652No prior observation