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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $392.50 Put

TSM261023P00392500

Latest saved OI376Oct 23, 2026
Last change-10vs previous saved observation
Saved market days5Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $392.50 put open interest history 5 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 3861930 2026-10-14: 0 OI2026-10-15: 12 OI2026-10-16: 215 OI2026-10-21: 386 OI2026-10-23: 376 OI Oct 14, 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, 2026Viewing376-10
Oct 21, 2026386+171
Oct 16, 2026215+203
Oct 15, 202612+12
Oct 14, 20260No prior observation