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Contract OI history

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Dec 18, 2026 EXPIRATION

TMO $590.00 Put

TMO261218P00590000

Latest saved OI187Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $590.00 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. 187930 2026-10-02: 153 OI2026-10-05: 159 OI2026-10-06: 160 OI2026-10-07: 166 OI2026-10-08: 166 OI2026-10-09: 166 OI2026-10-13: 167 OI2026-10-14: 167 OI2026-10-15: 167 OI2026-10-16: 173 OI2026-10-21: 187 OI2026-10-23: 187 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, 20261870
Oct 21, 2026Viewing187+14
Oct 16, 2026173+6
Oct 15, 20261670
Oct 14, 20261670
Oct 13, 2026167+1
Oct 09, 20261660
Oct 08, 20261660
Oct 07, 2026166+6
Oct 06, 2026160+1
Oct 05, 2026159+6
Oct 02, 2026153No prior observation