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Contract OI history

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Dec 18, 2026 EXPIRATION

TMO $510.00 Put

TMO261218P00510000

Latest saved OI188Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $510.00 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. 188940 2026-10-02: 179 OI2026-10-05: 179 OI2026-10-06: 179 OI2026-10-07: 177 OI2026-10-08: 177 OI2026-10-09: 178 OI2026-10-13: 178 OI2026-10-14: 178 OI2026-10-15: 183 OI2026-10-16: 183 OI2026-10-21: 183 OI2026-10-23: 188 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, 2026188+5
Oct 21, 2026Viewing1830
Oct 16, 20261830
Oct 15, 2026183+5
Oct 14, 20261780
Oct 13, 20261780
Oct 09, 2026178+1
Oct 08, 20261770
Oct 07, 2026177-2
Oct 06, 20261790
Oct 05, 20261790
Oct 02, 2026179No prior observation