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Contract OI history

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Nov 06, 2026 EXPIRATION

TSM $420.00 Put

TSM261106P00420000

Latest saved OI678Oct 23, 2026
Last change+60vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $420.00 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. 7123560 2026-10-02: 124 OI2026-10-05: 132 OI2026-10-06: 216 OI2026-10-07: 389 OI2026-10-08: 389 OI2026-10-09: 702 OI2026-10-14: 712 OI2026-10-15: 685 OI2026-10-16: 630 OI2026-10-21: 618 OI2026-10-23: 678 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, 2026Viewing678+60
Oct 21, 2026618-12
Oct 16, 2026630-55
Oct 15, 2026685-27
Oct 14, 2026712+10
Oct 09, 2026702+313
Oct 08, 20263890
Oct 07, 2026389+173
Oct 06, 2026216+84
Oct 05, 2026132+8
Oct 02, 2026124No prior observation