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Contract OI history

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Dec 17, 2027 EXPIRATION

TSM $320.00 Put

TSM271217P00320000

Latest saved OI214Oct 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 $320.00 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. 2141070 2026-10-02: 190 OI2026-10-05: 189 OI2026-10-06: 188 OI2026-10-07: 188 OI2026-10-08: 188 OI2026-10-09: 190 OI2026-10-14: 191 OI2026-10-15: 196 OI2026-10-16: 199 OI2026-10-21: 204 OI2026-10-23: 214 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, 2026Viewing214+10
Oct 21, 2026204+5
Oct 16, 2026199+3
Oct 15, 2026196+5
Oct 14, 2026191+1
Oct 09, 2026190+2
Oct 08, 20261880
Oct 07, 20261880
Oct 06, 2026188-1
Oct 05, 2026189-1
Oct 02, 2026190No prior observation