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Contract OI history

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Jan 21, 2028 EXPIRATION

TSM $280.00 Put

TSM280121P00280000

Latest saved OI434Oct 23, 2026
Last change+63vs 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. 4342170 2026-10-02: 392 OI2026-10-05: 392 OI2026-10-06: 392 OI2026-10-07: 392 OI2026-10-08: 392 OI2026-10-09: 393 OI2026-10-14: 393 OI2026-10-15: 362 OI2026-10-16: 367 OI2026-10-21: 371 OI2026-10-23: 434 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, 2026Viewing434+63
Oct 21, 2026371+4
Oct 16, 2026367+5
Oct 15, 2026362-31
Oct 14, 20263930
Oct 09, 2026393+1
Oct 08, 20263920
Oct 07, 20263920
Oct 06, 20263920
Oct 05, 20263920
Oct 02, 2026392No prior observation