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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $442.50 Put

TSM261023P00442500

Latest saved OI21Oct 23, 2026
Last change-580vs previous saved observation
Saved market days8Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $442.50 put open interest history 8 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 6913450 2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 80 OI2026-10-14: 133 OI2026-10-15: 691 OI2026-10-16: 598 OI2026-10-21: 601 OI2026-10-23: 21 OI Oct 07, 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, 2026Viewing21-580
Oct 21, 2026601+3
Oct 16, 2026598-93
Oct 15, 2026691+558
Oct 14, 2026133+53
Oct 09, 202680+80
Oct 08, 202600
Oct 07, 20260No prior observation