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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $340.00 Put

TSM261030P00340000

Latest saved OI540Oct 23, 2026
Last change+224vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $340.00 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. 5402700 2026-10-02: 152 OI2026-10-05: 178 OI2026-10-06: 177 OI2026-10-07: 180 OI2026-10-08: 180 OI2026-10-09: 191 OI2026-10-14: 189 OI2026-10-15: 188 OI2026-10-16: 178 OI2026-10-21: 316 OI2026-10-23: 540 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, 2026Viewing540+224
Oct 21, 2026316+138
Oct 16, 2026178-10
Oct 15, 2026188-1
Oct 14, 2026189-2
Oct 09, 2026191+11
Oct 08, 20261800
Oct 07, 2026180+3
Oct 06, 2026177-1
Oct 05, 2026178+26
Oct 02, 2026152No prior observation