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Contract OI history

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Dec 17, 2027 EXPIRATION

TSM $280.00 Put

TSM271217P00280000

Latest saved OI437Oct 23, 2026
Last change+3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $280.00 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. 4372180 2026-10-02: 433 OI2026-10-05: 433 OI2026-10-06: 433 OI2026-10-07: 433 OI2026-10-08: 433 OI2026-10-09: 433 OI2026-10-14: 433 OI2026-10-15: 433 OI2026-10-16: 434 OI2026-10-21: 434 OI2026-10-23: 437 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, 2026Viewing437+3
Oct 21, 20264340
Oct 16, 2026434+1
Oct 15, 20264330
Oct 14, 20264330
Oct 09, 20264330
Oct 08, 20264330
Oct 07, 20264330
Oct 06, 20264330
Oct 05, 20264330
Oct 02, 2026433No prior observation