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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $442.50 Put

TSM261030P00442500

Latest saved OI156Oct 23, 2026
Last change+18vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $442.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 156780 2026-10-09: 0 OI2026-10-14: 21 OI2026-10-15: 31 OI2026-10-16: 131 OI2026-10-21: 138 OI2026-10-23: 156 OI Oct 09, 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, 2026Viewing156+18
Oct 21, 2026138+7
Oct 16, 2026131+100
Oct 15, 202631+10
Oct 14, 202621+21
Oct 09, 20260No prior observation