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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $440.00 Put

TSM261030P00440000

Latest saved OI1,039Oct 23, 2026
Last change+17vs 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. 1,0395190 2026-10-02: 654 OI2026-10-05: 673 OI2026-10-06: 711 OI2026-10-07: 724 OI2026-10-08: 724 OI2026-10-09: 883 OI2026-10-14: 877 OI2026-10-15: 923 OI2026-10-16: 1,008 OI2026-10-21: 1,022 OI2026-10-23: 1,039 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, 2026Viewing1,039+17
Oct 21, 20261,022+14
Oct 16, 20261,008+85
Oct 15, 2026923+46
Oct 14, 2026877-6
Oct 09, 2026883+159
Oct 08, 20267240
Oct 07, 2026724+13
Oct 06, 2026711+38
Oct 05, 2026673+19
Oct 02, 2026654No prior observation