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Contract OI history

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Sep 17, 2027 EXPIRATION

TSM $430.00 Put

TSM270917P00430000

Latest saved OI406Oct 23, 2026
Last change-4vs 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. 4102050 2026-10-02: 349 OI2026-10-05: 349 OI2026-10-06: 353 OI2026-10-07: 337 OI2026-10-08: 337 OI2026-10-09: 342 OI2026-10-14: 342 OI2026-10-15: 359 OI2026-10-16: 396 OI2026-10-21: 410 OI2026-10-23: 406 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, 2026Viewing406-4
Oct 21, 2026410+14
Oct 16, 2026396+37
Oct 15, 2026359+17
Oct 14, 20263420
Oct 09, 2026342+5
Oct 08, 20263370
Oct 07, 2026337-16
Oct 06, 2026353+4
Oct 05, 20263490
Oct 02, 2026349No prior observation