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Contract OI history

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Feb 19, 2027 EXPIRATION

TSM $430.00 Put

TSM270219P00430000

Latest saved OI563Oct 23, 2026
Last change+12vs 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. 5632810 2026-10-02: 244 OI2026-10-05: 243 OI2026-10-06: 277 OI2026-10-07: 277 OI2026-10-08: 277 OI2026-10-09: 284 OI2026-10-14: 376 OI2026-10-15: 396 OI2026-10-16: 442 OI2026-10-21: 551 OI2026-10-23: 563 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, 2026Viewing563+12
Oct 21, 2026551+109
Oct 16, 2026442+46
Oct 15, 2026396+20
Oct 14, 2026376+92
Oct 09, 2026284+7
Oct 08, 20262770
Oct 07, 20262770
Oct 06, 2026277+34
Oct 05, 2026243-1
Oct 02, 2026244No prior observation