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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $480.00 Put

TSM261218P00480000

Latest saved OI1,403Oct 23, 2026
Last change-5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $480.00 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. 1,4287140 2026-10-02: 175 OI2026-10-05: 199 OI2026-10-06: 1,075 OI2026-10-07: 1,162 OI2026-10-08: 1,162 OI2026-10-09: 1,428 OI2026-10-14: 1,408 OI2026-10-15: 1,395 OI2026-10-16: 1,374 OI2026-10-21: 1,408 OI2026-10-23: 1,403 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, 2026Viewing1,403-5
Oct 21, 20261,408+34
Oct 16, 20261,374-21
Oct 15, 20261,395-13
Oct 14, 20261,408-20
Oct 09, 20261,428+266
Oct 08, 20261,1620
Oct 07, 20261,162+87
Oct 06, 20261,075+876
Oct 05, 2026199+24
Oct 02, 2026175No prior observation