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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $425.00 Put

TSM261023P00425000

Latest saved OI944Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $425.00 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. 9454720 2026-10-02: 347 OI2026-10-05: 353 OI2026-10-06: 399 OI2026-10-07: 424 OI2026-10-08: 424 OI2026-10-09: 475 OI2026-10-14: 598 OI2026-10-15: 614 OI2026-10-16: 643 OI2026-10-21: 945 OI2026-10-23: 944 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, 2026Viewing944-1
Oct 21, 2026945+302
Oct 16, 2026643+29
Oct 15, 2026614+16
Oct 14, 2026598+123
Oct 09, 2026475+51
Oct 08, 20264240
Oct 07, 2026424+25
Oct 06, 2026399+46
Oct 05, 2026353+6
Oct 02, 2026347No prior observation