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Contract OI history

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Jan 15, 2027 EXPIRATION

TMO $400.00 Put

TMO270115P00400000

Latest saved OI685Oct 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 $400.00 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. 6853420 2026-10-02: 680 OI2026-10-05: 680 OI2026-10-06: 680 OI2026-10-07: 680 OI2026-10-08: 680 OI2026-10-09: 680 OI2026-10-13: 680 OI2026-10-14: 680 OI2026-10-15: 680 OI2026-10-16: 680 OI2026-10-21: 685 OI2026-10-23: 685 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, 20266850
Oct 21, 2026Viewing685+5
Oct 16, 20266800
Oct 15, 20266800
Oct 14, 20266800
Oct 13, 20266800
Oct 09, 20266800
Oct 08, 20266800
Oct 07, 20266800
Oct 06, 20266800
Oct 05, 20266800
Oct 02, 2026680No prior observation