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Contract OI history

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Sep 17, 2027 EXPIRATION

TSM $340.00 Put

TSM270917P00340000

Latest saved OI762Oct 23, 2026
Last change+409vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $340.00 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. 7623810 2026-10-02: 328 OI2026-10-05: 328 OI2026-10-06: 332 OI2026-10-07: 332 OI2026-10-08: 332 OI2026-10-09: 345 OI2026-10-14: 350 OI2026-10-15: 350 OI2026-10-16: 361 OI2026-10-21: 353 OI2026-10-23: 762 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, 2026Viewing762+409
Oct 21, 2026353-8
Oct 16, 2026361+11
Oct 15, 20263500
Oct 14, 2026350+5
Oct 09, 2026345+13
Oct 08, 20263320
Oct 07, 20263320
Oct 06, 2026332+4
Oct 05, 20263280
Oct 02, 2026328No prior observation