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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $500.00 Put

TSM261120P00500000

Latest saved OI5Oct 23, 2026
Last change-322vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $500.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5642820 2026-10-02: 287 OI2026-10-05: 361 OI2026-10-06: 489 OI2026-10-07: 517 OI2026-10-08: 517 OI2026-10-09: 564 OI2026-10-14: 563 OI2026-10-15: 563 OI2026-10-16: 447 OI2026-10-21: 327 OI2026-10-23: 5 OI Oct 02, 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, 2026Viewing5-322
Oct 21, 2026327-120
Oct 16, 2026447-116
Oct 15, 20265630
Oct 14, 2026563-1
Oct 09, 2026564+47
Oct 08, 20265170
Oct 07, 2026517+28
Oct 06, 2026489+128
Oct 05, 2026361+74
Oct 02, 2026287No prior observation