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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $395.00 Put

TSM261023P00395000

Latest saved OI1,508Oct 23, 2026
Last change-97vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $395.00 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. 1,6058020 2026-10-02: 197 OI2026-10-05: 188 OI2026-10-06: 171 OI2026-10-07: 170 OI2026-10-08: 170 OI2026-10-09: 174 OI2026-10-14: 202 OI2026-10-15: 233 OI2026-10-16: 1,042 OI2026-10-21: 1,605 OI2026-10-23: 1,508 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, 2026Viewing1,508-97
Oct 21, 20261,605+563
Oct 16, 20261,042+809
Oct 15, 2026233+31
Oct 14, 2026202+28
Oct 09, 2026174+4
Oct 08, 20261700
Oct 07, 2026170-1
Oct 06, 2026171-17
Oct 05, 2026188-9
Oct 02, 2026197No prior observation