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Contract OI history

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Apr 16, 2027 EXPIRATION

TSM $280.00 Put

TSM270416P00280000

Latest saved OI299Oct 23, 2026
Last change+10vs 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. 2991490 2026-10-02: 187 OI2026-10-05: 186 OI2026-10-06: 190 OI2026-10-07: 192 OI2026-10-08: 192 OI2026-10-09: 194 OI2026-10-14: 193 OI2026-10-15: 201 OI2026-10-16: 202 OI2026-10-21: 289 OI2026-10-23: 299 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, 2026Viewing299+10
Oct 21, 2026289+87
Oct 16, 2026202+1
Oct 15, 2026201+8
Oct 14, 2026193-1
Oct 09, 2026194+2
Oct 08, 20261920
Oct 07, 2026192+2
Oct 06, 2026190+4
Oct 05, 2026186-1
Oct 02, 2026187No prior observation