OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

MP $55.00 Put

MP261218P00055000

Latest saved OI4,846Oct 23, 2026
Last change-11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MP $55.00 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. 4,8572,4280 2026-10-02: 4,627 OI2026-10-05: 4,627 OI2026-10-06: 4,649 OI2026-10-07: 4,659 OI2026-10-08: 4,659 OI2026-10-09: 4,814 OI2026-10-13: 4,817 OI2026-10-14: 4,817 OI2026-10-15: 4,843 OI2026-10-16: 4,846 OI2026-10-21: 4,857 OI2026-10-23: 4,846 OI Oct 02, 2026Oct 23, 2026

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

MP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,846-11
Oct 21, 20264,857+11
Oct 16, 20264,846+3
Oct 15, 20264,843+26
Oct 14, 20264,8170
Oct 13, 20264,817+3
Oct 09, 20264,814+155
Oct 08, 20264,6590
Oct 07, 20264,659+10
Oct 06, 20264,649+22
Oct 05, 20264,6270
Oct 02, 20264,627No prior observation