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Contract OI history

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Jan 21, 2028 EXPIRATION

TSM $430.00 Put

TSM280121P00430000

Latest saved OI731Oct 23, 2026
Last change0vs 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. 7323660 2026-10-02: 510 OI2026-10-05: 510 OI2026-10-06: 716 OI2026-10-07: 716 OI2026-10-08: 716 OI2026-10-09: 732 OI2026-10-14: 732 OI2026-10-15: 732 OI2026-10-16: 732 OI2026-10-21: 731 OI2026-10-23: 731 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, 2026Viewing7310
Oct 21, 2026731-1
Oct 16, 20267320
Oct 15, 20267320
Oct 14, 20267320
Oct 09, 2026732+16
Oct 08, 20267160
Oct 07, 20267160
Oct 06, 2026716+206
Oct 05, 20265100
Oct 02, 2026510No prior observation