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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $407.50 Put

TSM261030P00407500

Latest saved OI339Oct 23, 2026
Last change+123vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $407.50 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 3391690 2026-10-15: 0 OI2026-10-16: 70 OI2026-10-21: 216 OI2026-10-23: 339 OI Oct 15, 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, 2026Viewing339+123
Oct 21, 2026216+146
Oct 16, 202670+70
Oct 15, 20260No prior observation