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Contract OI history

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Dec 18, 2026 EXPIRATION

TSM $370.00 Put

TSM261218P00370000

Latest saved OI7,173Oct 23, 2026
Last change+41vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $370.00 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. 7,1733,5860 2026-10-02: 5,911 OI2026-10-05: 5,910 OI2026-10-06: 6,766 OI2026-10-07: 6,775 OI2026-10-08: 6,775 OI2026-10-09: 6,775 OI2026-10-14: 6,900 OI2026-10-15: 6,895 OI2026-10-16: 6,981 OI2026-10-21: 7,132 OI2026-10-23: 7,173 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, 2026Viewing7,173+41
Oct 21, 20267,132+151
Oct 16, 20266,981+86
Oct 15, 20266,895-5
Oct 14, 20266,900+125
Oct 09, 20266,7750
Oct 08, 20266,7750
Oct 07, 20266,775+9
Oct 06, 20266,766+856
Oct 05, 20265,910-1
Oct 02, 20265,911No prior observation