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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $395.00 Put

TSM261030P00395000

Latest saved OI1,230Oct 23, 2026
Last change+137vs 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. 1,2306150 2026-10-02: 224 OI2026-10-05: 194 OI2026-10-06: 197 OI2026-10-07: 197 OI2026-10-08: 197 OI2026-10-09: 217 OI2026-10-14: 294 OI2026-10-15: 292 OI2026-10-16: 444 OI2026-10-21: 1,093 OI2026-10-23: 1,230 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, 2026Viewing1,230+137
Oct 21, 20261,093+649
Oct 16, 2026444+152
Oct 15, 2026292-2
Oct 14, 2026294+77
Oct 09, 2026217+20
Oct 08, 20261970
Oct 07, 20261970
Oct 06, 2026197+3
Oct 05, 2026194-30
Oct 02, 2026224No prior observation