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Contract OI history

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Jan 21, 2028 EXPIRATION

TSM $310.00 Put

TSM280121P00310000

Latest saved OI388Oct 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 $310.00 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. 4012000 2026-10-02: 397 OI2026-10-05: 397 OI2026-10-06: 397 OI2026-10-07: 397 OI2026-10-08: 397 OI2026-10-09: 397 OI2026-10-14: 397 OI2026-10-15: 397 OI2026-10-16: 401 OI2026-10-21: 388 OI2026-10-23: 388 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, 2026Viewing3880
Oct 21, 2026388-13
Oct 16, 2026401+4
Oct 15, 20263970
Oct 14, 20263970
Oct 09, 20263970
Oct 08, 20263970
Oct 07, 20263970
Oct 06, 20263970
Oct 05, 20263970
Oct 02, 2026397No prior observation