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Contract OI history

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Mar 19, 2027 EXPIRATION

TSM $280.00 Put

TSM270319P00280000

Latest saved OI888Oct 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. 9784890 2026-10-02: 975 OI2026-10-05: 978 OI2026-10-06: 976 OI2026-10-07: 976 OI2026-10-08: 976 OI2026-10-09: 858 OI2026-10-14: 858 OI2026-10-15: 856 OI2026-10-16: 857 OI2026-10-21: 888 OI2026-10-23: 888 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, 2026Viewing8880
Oct 21, 2026888+31
Oct 16, 2026857+1
Oct 15, 2026856-2
Oct 14, 20268580
Oct 09, 2026858-118
Oct 08, 20269760
Oct 07, 20269760
Oct 06, 2026976-2
Oct 05, 2026978+3
Oct 02, 2026975No prior observation