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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $450.00 Put

TSM261023P00450000

Latest saved OI5Oct 23, 2026
Last change-1,269vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $450.00 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. 1,3326660 2026-10-02: 649 OI2026-10-05: 651 OI2026-10-06: 733 OI2026-10-07: 788 OI2026-10-08: 788 OI2026-10-09: 894 OI2026-10-14: 930 OI2026-10-15: 1,149 OI2026-10-16: 1,332 OI2026-10-21: 1,274 OI2026-10-23: 5 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, 2026Viewing5-1,269
Oct 21, 20261,274-58
Oct 16, 20261,332+183
Oct 15, 20261,149+219
Oct 14, 2026930+36
Oct 09, 2026894+106
Oct 08, 20267880
Oct 07, 2026788+55
Oct 06, 2026733+82
Oct 05, 2026651+2
Oct 02, 2026649No prior observation