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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $100.00 Put

TSM261218P00100000

Latest saved OI4,372Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $100.00 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. 4,3722,1860 2026-10-02: 4,360 OI2026-10-05: 4,360 OI2026-10-06: 4,360 OI2026-10-07: 4,360 OI2026-10-08: 4,360 OI2026-10-09: 4,360 OI2026-10-14: 4,367 OI2026-10-15: 4,367 OI2026-10-16: 4,367 OI2026-10-21: 4,372 OI2026-10-23: 4,372 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, 2026Viewing4,3720
Oct 21, 20264,372+5
Oct 16, 20264,3670
Oct 15, 20264,3670
Oct 14, 20264,367+7
Oct 09, 20264,3600
Oct 08, 20264,3600
Oct 07, 20264,3600
Oct 06, 20264,3600
Oct 05, 20264,3600
Oct 02, 20264,360No prior observation