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Contract OI history

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Oct 30, 2026 EXPIRATION

TSM $305.00 Put

TSM261030P00305000

Latest saved OI85Oct 23, 2026
Last change+45vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $305.00 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. 85420 2026-10-02: 20 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 19 OI2026-10-08: 19 OI2026-10-09: 23 OI2026-10-14: 26 OI2026-10-15: 26 OI2026-10-16: 26 OI2026-10-21: 40 OI2026-10-23: 85 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, 2026Viewing85+45
Oct 21, 202640+14
Oct 16, 2026260
Oct 15, 2026260
Oct 14, 202626+3
Oct 09, 202623+4
Oct 08, 2026190
Oct 07, 202619+1
Oct 06, 2026180
Oct 05, 202618-2
Oct 02, 202620No prior observation