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Contract OI history

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Oct 23, 2026 EXPIRATION

TMO $550.00 Put

TMO261023P00550000

Latest saved OI125Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $550.00 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. 126630 2026-10-02: 51 OI2026-10-05: 51 OI2026-10-06: 126 OI2026-10-07: 126 OI2026-10-08: 126 OI2026-10-09: 91 OI2026-10-13: 93 OI2026-10-14: 93 OI2026-10-15: 93 OI2026-10-16: 93 OI2026-10-21: 124 OI2026-10-23: 125 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, 2026125+1
Oct 21, 2026Viewing124+31
Oct 16, 2026930
Oct 15, 2026930
Oct 14, 2026930
Oct 13, 202693+2
Oct 09, 202691-35
Oct 08, 20261260
Oct 07, 20261260
Oct 06, 2026126+75
Oct 05, 2026510
Oct 02, 202651No prior observation