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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $320.00 Put

TSM261120P00320000

Latest saved OI3,292Oct 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 $320.00 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. 4,1132,0560 2026-10-02: 4,113 OI2026-10-05: 4,110 OI2026-10-06: 3,498 OI2026-10-07: 3,488 OI2026-10-08: 3,488 OI2026-10-09: 3,488 OI2026-10-14: 3,486 OI2026-10-15: 3,536 OI2026-10-16: 3,527 OI2026-10-21: 3,298 OI2026-10-23: 3,292 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, 2026Viewing3,292-6
Oct 21, 20263,298-229
Oct 16, 20263,527-9
Oct 15, 20263,536+50
Oct 14, 20263,486-2
Oct 09, 20263,4880
Oct 08, 20263,4880
Oct 07, 20263,488-10
Oct 06, 20263,498-612
Oct 05, 20264,110-3
Oct 02, 20264,113No prior observation