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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $440.00 Put

TSM261120P00440000

Latest saved OI1,973Oct 23, 2026
Last change-6vs 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. 2,0381,0190 2026-10-02: 1,035 OI2026-10-05: 1,141 OI2026-10-06: 1,380 OI2026-10-07: 1,446 OI2026-10-08: 1,446 OI2026-10-09: 1,557 OI2026-10-14: 1,883 OI2026-10-15: 1,946 OI2026-10-16: 2,038 OI2026-10-21: 1,979 OI2026-10-23: 1,973 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, 2026Viewing1,973-6
Oct 21, 20261,979-59
Oct 16, 20262,038+92
Oct 15, 20261,946+63
Oct 14, 20261,883+326
Oct 09, 20261,557+111
Oct 08, 20261,4460
Oct 07, 20261,446+66
Oct 06, 20261,380+239
Oct 05, 20261,141+106
Oct 02, 20261,035No prior observation