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Contract OI history

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Oct 23, 2026 EXPIRATION

MS $197.50 Call

MS261023C00197500

Latest saved OI340Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MS $197.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4392190 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 7 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 30 OI2026-10-13: 439 OI2026-10-14: 439 OI2026-10-15: 317 OI2026-10-16: 351 OI2026-10-21: 335 OI2026-10-23: 340 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, 2026Viewing340+5
Oct 21, 2026335-16
Oct 16, 2026351+34
Oct 15, 2026317-122
Oct 14, 20264390
Oct 13, 2026439+409
Oct 09, 202630+8
Oct 08, 2026220
Oct 07, 202622+15
Oct 06, 20267+7
Oct 05, 202600
Oct 02, 20260No prior observation