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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $425.00 Put

TSM261120P00425000

Latest saved OI297Oct 23, 2026
Last change+18vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $425.00 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 2971480 2026-10-21: 279 OI2026-10-23: 297 OI Oct 21, 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, 2026Viewing297+18
Oct 21, 2026279No prior observation