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Contract OI history

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Oct 23, 2026 EXPIRATION

TSM $430.00 Put

TSM261023P00430000

Latest saved OI802Oct 23, 2026
Last change-861vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $430.00 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. 1,6918450 2026-10-02: 273 OI2026-10-05: 275 OI2026-10-06: 325 OI2026-10-07: 338 OI2026-10-08: 338 OI2026-10-09: 366 OI2026-10-14: 1,126 OI2026-10-15: 1,648 OI2026-10-16: 1,691 OI2026-10-21: 1,663 OI2026-10-23: 802 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, 2026Viewing802-861
Oct 21, 20261,663-28
Oct 16, 20261,691+43
Oct 15, 20261,648+522
Oct 14, 20261,126+760
Oct 09, 2026366+28
Oct 08, 20263380
Oct 07, 2026338+13
Oct 06, 2026325+50
Oct 05, 2026275+2
Oct 02, 2026273No prior observation