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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $385.00 Put

TSM261023P00385000

Latest saved OI695Oct 23, 2026
Last change-47vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $385.00 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. 7423710 2026-10-02: 447 OI2026-10-05: 408 OI2026-10-06: 403 OI2026-10-07: 403 OI2026-10-08: 403 OI2026-10-09: 405 OI2026-10-14: 382 OI2026-10-15: 475 OI2026-10-16: 548 OI2026-10-21: 742 OI2026-10-23: 695 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, 2026Viewing695-47
Oct 21, 2026742+194
Oct 16, 2026548+73
Oct 15, 2026475+93
Oct 14, 2026382-23
Oct 09, 2026405+2
Oct 08, 20264030
Oct 07, 20264030
Oct 06, 2026403-5
Oct 05, 2026408-39
Oct 02, 2026447No prior observation