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Contract OI history

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Dec 18, 2026 EXPIRATION

TMO $680.00 Put

TMO261218P00680000

Latest saved OI160Oct 23, 2026
Last change+133vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $680.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 160800 2026-10-02: 24 OI2026-10-05: 24 OI2026-10-06: 24 OI2026-10-07: 25 OI2026-10-08: 25 OI2026-10-09: 25 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-15: 27 OI2026-10-16: 27 OI2026-10-21: 27 OI2026-10-23: 160 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TMO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026160+133
Oct 21, 2026Viewing270
Oct 16, 2026270
Oct 15, 202627+2
Oct 14, 2026250
Oct 13, 2026250
Oct 09, 2026250
Oct 08, 2026250
Oct 07, 202625+1
Oct 06, 2026240
Oct 05, 2026240
Oct 02, 202624No prior observation