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Contract OI history

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Dec 17, 2027 EXPIRATION

TSM $440.00 Put

TSM271217P00440000

Latest saved OI649Oct 23, 2026
Last change+10vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $440.00 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. 6493240 2026-10-02: 618 OI2026-10-05: 618 OI2026-10-06: 619 OI2026-10-07: 619 OI2026-10-08: 619 OI2026-10-09: 619 OI2026-10-14: 625 OI2026-10-15: 631 OI2026-10-16: 634 OI2026-10-21: 639 OI2026-10-23: 649 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, 2026Viewing649+10
Oct 21, 2026639+5
Oct 16, 2026634+3
Oct 15, 2026631+6
Oct 14, 2026625+6
Oct 09, 20266190
Oct 08, 20266190
Oct 07, 20266190
Oct 06, 2026619+1
Oct 05, 20266180
Oct 02, 2026618No prior observation