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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $422.50 Put

TSM261030P00422500

Latest saved OI503Oct 23, 2026
Last change+229vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $422.50 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. 5032510 2026-10-15: 0 OI2026-10-16: 37 OI2026-10-21: 274 OI2026-10-23: 503 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, 2026Viewing503+229
Oct 21, 2026274+237
Oct 16, 202637+37
Oct 15, 20260No prior observation