OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MS $190.00 Put

MS261120P00190000

Latest saved OI1,821Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $190.00 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. 1,8899440 2026-10-02: 1,794 OI2026-10-05: 1,793 OI2026-10-06: 1,797 OI2026-10-07: 1,799 OI2026-10-08: 1,799 OI2026-10-09: 1,804 OI2026-10-13: 1,869 OI2026-10-14: 1,869 OI2026-10-15: 1,889 OI2026-10-16: 1,857 OI2026-10-21: 1,820 OI2026-10-23: 1,821 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, 2026Viewing1,821+1
Oct 21, 20261,820-37
Oct 16, 20261,857-32
Oct 15, 20261,889+20
Oct 14, 20261,8690
Oct 13, 20261,869+65
Oct 09, 20261,804+5
Oct 08, 20261,7990
Oct 07, 20261,799+2
Oct 06, 20261,797+4
Oct 05, 20261,793-1
Oct 02, 20261,794No prior observation