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Contract OI history

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Nov 20, 2026 EXPIRATION

TSM $390.00 Put

TSM261120P00390000

Latest saved OI7,709Oct 23, 2026
Last change+276vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $390.00 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. 7,7093,8540 2026-10-02: 5,973 OI2026-10-05: 6,105 OI2026-10-06: 6,189 OI2026-10-07: 6,212 OI2026-10-08: 6,212 OI2026-10-09: 6,206 OI2026-10-14: 6,206 OI2026-10-15: 6,368 OI2026-10-16: 6,758 OI2026-10-21: 7,433 OI2026-10-23: 7,709 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, 2026Viewing7,709+276
Oct 21, 20267,433+675
Oct 16, 20266,758+390
Oct 15, 20266,368+162
Oct 14, 20266,2060
Oct 09, 20266,206-6
Oct 08, 20266,2120
Oct 07, 20266,212+23
Oct 06, 20266,189+84
Oct 05, 20266,105+132
Oct 02, 20265,973No prior observation