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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $405.00 Put

TSM261030P00405000

Latest saved OI706Oct 23, 2026
Last change+58vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $405.00 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. 7063530 2026-10-02: 287 OI2026-10-05: 300 OI2026-10-06: 488 OI2026-10-07: 486 OI2026-10-08: 486 OI2026-10-09: 512 OI2026-10-14: 538 OI2026-10-15: 525 OI2026-10-16: 580 OI2026-10-21: 648 OI2026-10-23: 706 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, 2026Viewing706+58
Oct 21, 2026648+68
Oct 16, 2026580+55
Oct 15, 2026525-13
Oct 14, 2026538+26
Oct 09, 2026512+26
Oct 08, 20264860
Oct 07, 2026486-2
Oct 06, 2026488+188
Oct 05, 2026300+13
Oct 02, 2026287No prior observation