OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

MA $520.00 Put

MA261023P00520000

Latest saved OI440Oct 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 $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. 6953470 2026-10-02: 667 OI2026-10-05: 695 OI2026-10-06: 570 OI2026-10-07: 565 OI2026-10-08: 565 OI2026-10-09: 455 OI2026-10-13: 450 OI2026-10-14: 450 OI2026-10-15: 450 OI2026-10-16: 444 OI2026-10-21: 440 OI2026-10-23: 440 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, 2026Viewing4400
Oct 21, 2026440-4
Oct 16, 2026444-6
Oct 15, 20264500
Oct 14, 20264500
Oct 13, 2026450-5
Oct 09, 2026455-110
Oct 08, 20265650
Oct 07, 2026565-5
Oct 06, 2026570-125
Oct 05, 2026695+28
Oct 02, 2026667No prior observation