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Contract OI history

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Dec 18, 2026 EXPIRATION

TMO $530.00 Put

TMO261218P00530000

Latest saved OI204Oct 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 $530.00 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. 2041020 2026-10-02: 191 OI2026-10-05: 191 OI2026-10-06: 191 OI2026-10-07: 191 OI2026-10-08: 191 OI2026-10-09: 191 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-15: 193 OI2026-10-16: 193 OI2026-10-21: 199 OI2026-10-23: 204 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, 2026Viewing204+5
Oct 21, 2026199+6
Oct 16, 20261930
Oct 15, 2026193+1
Oct 14, 20261920
Oct 13, 2026192+1
Oct 09, 20261910
Oct 08, 20261910
Oct 07, 20261910
Oct 06, 20261910
Oct 05, 20261910
Oct 02, 2026191No prior observation