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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $355.00 Put

TSM261023P00355000

Latest saved OI196Oct 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 $355.00 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. 196980 2026-10-02: 115 OI2026-10-05: 116 OI2026-10-06: 135 OI2026-10-07: 135 OI2026-10-08: 135 OI2026-10-09: 141 OI2026-10-14: 139 OI2026-10-15: 138 OI2026-10-16: 178 OI2026-10-21: 190 OI2026-10-23: 196 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, 2026Viewing196+6
Oct 21, 2026190+12
Oct 16, 2026178+40
Oct 15, 2026138-1
Oct 14, 2026139-2
Oct 09, 2026141+6
Oct 08, 20261350
Oct 07, 20261350
Oct 06, 2026135+19
Oct 05, 2026116+1
Oct 02, 2026115No prior observation