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Contract OI history

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Dec 18, 2026 EXPIRATION

MS $155.00 Put

MS261218P00155000

Latest saved OI2,910Oct 23, 2026
Last change-14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $155.00 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. 2,9241,4620 2026-10-02: 1,477 OI2026-10-05: 1,483 OI2026-10-06: 1,483 OI2026-10-07: 1,483 OI2026-10-08: 1,483 OI2026-10-09: 1,483 OI2026-10-13: 2,447 OI2026-10-14: 2,447 OI2026-10-15: 2,864 OI2026-10-16: 2,876 OI2026-10-21: 2,924 OI2026-10-23: 2,910 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,910-14
Oct 21, 20262,924+48
Oct 16, 20262,876+12
Oct 15, 20262,864+417
Oct 14, 20262,4470
Oct 13, 20262,447+964
Oct 09, 20261,4830
Oct 08, 20261,4830
Oct 07, 20261,4830
Oct 06, 20261,4830
Oct 05, 20261,483+6
Oct 02, 20261,477No prior observation