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Contract OI history

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Dec 15, 2028 EXPIRATION

TSM $280.00 Put

TSM281215P00280000

Latest saved OI371Oct 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 $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. 3761880 2026-10-02: 376 OI2026-10-05: 376 OI2026-10-06: 376 OI2026-10-07: 376 OI2026-10-08: 376 OI2026-10-09: 373 OI2026-10-14: 373 OI2026-10-15: 372 OI2026-10-16: 372 OI2026-10-21: 371 OI2026-10-23: 371 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, 2026Viewing3710
Oct 21, 2026371-1
Oct 16, 20263720
Oct 15, 2026372-1
Oct 14, 20263730
Oct 09, 2026373-3
Oct 08, 20263760
Oct 07, 20263760
Oct 06, 20263760
Oct 05, 20263760
Oct 02, 2026376No prior observation