OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MA $400.00 Put

MA270115P00400000

Latest saved OI497Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $400.00 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. 5122560 2026-10-02: 512 OI2026-10-05: 512 OI2026-10-06: 512 OI2026-10-07: 507 OI2026-10-08: 507 OI2026-10-09: 507 OI2026-10-13: 507 OI2026-10-14: 507 OI2026-10-15: 506 OI2026-10-16: 496 OI2026-10-21: 497 OI2026-10-23: 497 OI Oct 02, 2026Oct 23, 2026

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

MA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4970
Oct 21, 2026497+1
Oct 16, 2026496-10
Oct 15, 2026506-1
Oct 14, 20265070
Oct 13, 20265070
Oct 09, 20265070
Oct 08, 20265070
Oct 07, 2026507-5
Oct 06, 20265120
Oct 05, 20265120
Oct 02, 2026512No prior observation