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Contract OI history

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Jan 15, 2027 EXPIRATION

TMO $440.00 Put

TMO270115P00440000

Latest saved OI235Oct 23, 2026
Last change-20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $440.00 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. 2551270 2026-10-02: 249 OI2026-10-05: 249 OI2026-10-06: 249 OI2026-10-07: 249 OI2026-10-08: 249 OI2026-10-09: 244 OI2026-10-13: 244 OI2026-10-14: 244 OI2026-10-15: 255 OI2026-10-16: 255 OI2026-10-21: 255 OI2026-10-23: 235 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, 2026235-20
Oct 21, 2026Viewing2550
Oct 16, 20262550
Oct 15, 2026255+11
Oct 14, 20262440
Oct 13, 20262440
Oct 09, 2026244-5
Oct 08, 20262490
Oct 07, 20262490
Oct 06, 20262490
Oct 05, 20262490
Oct 02, 2026249No prior observation