OITracker Cboe delayed data

Contract OI history

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Apr 16, 2027 EXPIRATION

MS $190.00 Put

MS270416P00190000

Latest saved OI510Oct 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. 5112550 2026-10-02: 442 OI2026-10-05: 442 OI2026-10-06: 445 OI2026-10-07: 476 OI2026-10-08: 476 OI2026-10-09: 475 OI2026-10-13: 475 OI2026-10-14: 475 OI2026-10-15: 475 OI2026-10-16: 488 OI2026-10-21: 511 OI2026-10-23: 510 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, 2026Viewing510-1
Oct 21, 2026511+23
Oct 16, 2026488+13
Oct 15, 20264750
Oct 14, 20264750
Oct 13, 20264750
Oct 09, 2026475-1
Oct 08, 20264760
Oct 07, 2026476+31
Oct 06, 2026445+3
Oct 05, 20264420
Oct 02, 2026442No prior observation