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Contract OI history

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Dec 18, 2026 EXPIRATION

TMO $600.00 Put

TMO261218P00600000

Latest saved OI296Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $600.00 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. 2961480 2026-10-02: 267 OI2026-10-05: 267 OI2026-10-06: 267 OI2026-10-07: 267 OI2026-10-08: 267 OI2026-10-09: 267 OI2026-10-13: 267 OI2026-10-14: 267 OI2026-10-15: 270 OI2026-10-16: 271 OI2026-10-21: 292 OI2026-10-23: 296 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, 2026296+4
Oct 21, 2026Viewing292+21
Oct 16, 2026271+1
Oct 15, 2026270+3
Oct 14, 20262670
Oct 13, 20262670
Oct 09, 20262670
Oct 08, 20262670
Oct 07, 20262670
Oct 06, 20262670
Oct 05, 20262670
Oct 02, 2026267No prior observation