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Contract OI history

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Nov 20, 2026 EXPIRATION

TMO $540.00 Put

TMO261120P00540000

Latest saved OI164Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $540.00 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. 164820 2026-10-02: 138 OI2026-10-05: 141 OI2026-10-06: 149 OI2026-10-07: 164 OI2026-10-08: 164 OI2026-10-09: 164 OI2026-10-13: 163 OI2026-10-14: 163 OI2026-10-15: 163 OI2026-10-16: 162 OI2026-10-21: 162 OI2026-10-23: 164 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, 2026164+2
Oct 21, 2026Viewing1620
Oct 16, 2026162-1
Oct 15, 20261630
Oct 14, 20261630
Oct 13, 2026163-1
Oct 09, 20261640
Oct 08, 20261640
Oct 07, 2026164+15
Oct 06, 2026149+8
Oct 05, 2026141+3
Oct 02, 2026138No prior observation