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Contract OI history

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Mar 19, 2027 EXPIRATION

TMO $500.00 Put

TMO270319P00500000

Latest saved OI130Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TMO $500.00 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. 130650 2026-10-02: 124 OI2026-10-05: 125 OI2026-10-06: 125 OI2026-10-07: 125 OI2026-10-08: 125 OI2026-10-09: 125 OI2026-10-13: 126 OI2026-10-14: 126 OI2026-10-15: 128 OI2026-10-16: 128 OI2026-10-21: 128 OI2026-10-23: 130 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, 2026130+2
Oct 21, 2026Viewing1280
Oct 16, 20261280
Oct 15, 2026128+2
Oct 14, 20261260
Oct 13, 2026126+1
Oct 09, 20261250
Oct 08, 20261250
Oct 07, 20261250
Oct 06, 20261250
Oct 05, 2026125+1
Oct 02, 2026124No prior observation