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Contract OI history

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Sep 17, 2027 EXPIRATION

MS $185.00 Put

MS270917P00185000

Latest saved OI859Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $185.00 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. 8594290 2026-10-02: 687 OI2026-10-05: 688 OI2026-10-06: 723 OI2026-10-07: 723 OI2026-10-08: 723 OI2026-10-09: 730 OI2026-10-13: 731 OI2026-10-14: 731 OI2026-10-15: 732 OI2026-10-16: 851 OI2026-10-21: 856 OI2026-10-23: 859 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, 2026Viewing859+3
Oct 21, 2026856+5
Oct 16, 2026851+119
Oct 15, 2026732+1
Oct 14, 20267310
Oct 13, 2026731+1
Oct 09, 2026730+7
Oct 08, 20267230
Oct 07, 20267230
Oct 06, 2026723+35
Oct 05, 2026688+1
Oct 02, 2026687No prior observation