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Contract OI history

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Feb 19, 2027 EXPIRATION

TSM $320.00 Put

TSM270219P00320000

Latest saved OI1,205Oct 23, 2026
Last change-2vs 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. 1,2796390 2026-10-02: 1,279 OI2026-10-05: 1,198 OI2026-10-06: 1,199 OI2026-10-07: 1,199 OI2026-10-08: 1,199 OI2026-10-09: 1,199 OI2026-10-14: 1,201 OI2026-10-15: 1,191 OI2026-10-16: 1,185 OI2026-10-21: 1,207 OI2026-10-23: 1,205 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, 2026Viewing1,205-2
Oct 21, 20261,207+22
Oct 16, 20261,185-6
Oct 15, 20261,191-10
Oct 14, 20261,201+2
Oct 09, 20261,1990
Oct 08, 20261,1990
Oct 07, 20261,1990
Oct 06, 20261,199+1
Oct 05, 20261,198-81
Oct 02, 20261,279No prior observation