OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

MA $520.00 Put

MA290119P00520000

Latest saved OI4Oct 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
MA $520.00 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. 420 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 3 OI2026-10-07: 3 OI2026-10-08: 3 OI2026-10-09: 2 OI2026-10-13: 3 OI2026-10-14: 3 OI2026-10-15: 3 OI2026-10-16: 3 OI2026-10-21: 3 OI2026-10-23: 4 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, 2026Viewing4+1
Oct 21, 202630
Oct 16, 202630
Oct 15, 202630
Oct 14, 202630
Oct 13, 20263+1
Oct 09, 20262-1
Oct 08, 202630
Oct 07, 202630
Oct 06, 20263+2
Oct 05, 202610
Oct 02, 20261No prior observation